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ASUS TUF Gaming VG279QM vs Dell Alienware AW2521H

Product A: ASUS

TUF Gaming VG279QM

90 of 172 known
Change ASUS TUF Gaming VG279QM

Compare the Dell Alienware AW2521H with

Product B: Dell

Alienware AW2521H

106 of 172 known
Change Dell Alienware AW2521H

Compare the ASUS TUF Gaming VG279QM with

77 of 164 fields differ

Download CSVDownload JSON
  • 35 different values
  • 42 known for one only
  • 37 the same
  • 50 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Refresh rateA: 280HzB: 360HzDell is 80 Hz higher.
  2. Power use (max)Lower is betterA: 65WB: 83WASUS is 18 W lower.
  3. Standby powerLower is betterA: 0.5WB: 0.4WDell is 0.1 W lower.

Refresh rate per resolution

The best rate over any port. Bars run from 0 to 1200 Hz.

1920 × 1080Native for both
A280Hz
B360Hz

Size, drawn to scale

Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.

Weight

0 to 15 kg

Weight with stand
A5.6kg
B8.1kg
Weight without stand
A3.3kg
B4.5kg
Box weight
A8.2kg
B12.3kg

All 172 fields

Every value links to where we found it.

AASUS TUF Gaming VG279QM
BDell Alienware AW2521H

General

6 of 8 differ
Series
TUF Gaming2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Product name TUF Gaming VG279QM.
Alienware1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026
Model numbers
VG279QM3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026User guide cover: TUF Gaming Monitor VG279QM series.
AW2521H, AW2521Hb1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026Exact marketing and regulatory models independently read on own original guide cover.2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own exact cover marketing/regulatory model names, not inferred from a sibling suffix.
GTIN / EAN
Not available
8841163833697Retailer pagegamestop.com/pc-gaming/monitors/pc/products/alienware-aw2521h-25-in-fhd-1920x1080-360hz-1ms-g-sync-compatible-gaming-monitor/311805.htmlRead 7 October 2026Exact AW2521H new US retail reference. European EAN 5397184409541 not asserted for the US package. Refurbished Best Buy GSRF code 400064571209 excluded.
Announced
Not available
13 May 20205Press articleengadget.com/alienware-area-51-m15-m17-aurora-140007085.htmlRead 7 October 2026Original exact model preview on May 13, 2020. First public announcement, distinct from October pricing and November retail. Maker original May blog not recovered. May 18 TFTCentral article is later coverage.
Status
Available2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026The current ASUS Global page lists the model with a full tech spec table and a security update support period until 31/12/2026. Stock was not checked.
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
$899.994Press articlenotebookcheck.net/Alienware-announces-pricing-and-availability-for-its-new-gaming-monitors.497409.0.htmlRead 7 October 2026Original October 8, 2020 maker launch-price announcement reported by Notebookcheck. Exact 24.5-inch 360 Hz AW2521H. Independent same-day Tom’s Hardware launch report agrees. Subsequent sale prices excluded. Original maker page no longer exposes launch price.
Launch price (EU)
Not available
Not available
Markets
US, GB4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Review: available from most regions via Amazon and in the UK from Overclockers UK.
US, EU, AU, JP, CN4Press articlenotebookcheck.net/Alienware-announces-pricing-and-availability-for-its-new-gaming-monitors.497409.0.htmlRead 7 October 2026Original launch availability explicitly names these markets for November 2020. This records markets in which model was sold, not present stock. Japan actual maker release was December 2, 2020, later than the forecast. China already independently verified in original release source. Exact shared AW2521H model, not an AW2521HF regional SKU. China October 2020 availability also explicitly stated in same launch report.
Colours
Black3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: Colors Black.
Dark Side of the Moon6Maker product pagedell.com/en-uk/shop/alienware-25-gaming-monitor-aw2521h/apd/210-ayclRead 7 October 2026Exact AW2521H maker colour. Lunar Light belongs to AW2521HFL 240 Hz, not this model. Matching global panel and housing reference, UK cable/warranty not transplanted.
Segment
Gaming1Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qmRead 10 October 2026TUF Gaming gaming monitor.
Gaming1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026

Display

8 of 12 differ
Screen size
27in(68.6 cm)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Panel Size (inch): 27. The user guide says 27 inch W (16:9, 68.6 cm).
24.5in(62.2 cm)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Viewable screen diagonal
Not available
24.5in(62.2 cm)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Native resolution
1920 × 1080px2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Resolution: 1920x1080.
1920 × 1080px2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Aspect ratio
16:92Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Aspect Ratio: 16:9.
16:92Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Pixel density
81.6ppi
89.9ppi
Pixel pitch
0.311mm2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Pixel Pitch: 0.311mm. The user guide gives 0.311 mm x 0.311 mm. The page's display viewing area of 567.6 x 336.15 mm does not fit 1920 x 1080 at this pitch, so it is not stored.
0.2829mm2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own horizontal pitch 0.2829 mm. Separate vertical pitch 0.2802 mm is not put into this scalar. Active dimensions and pixel count agree at published precision.
Active display area
Not available
Width543.2Height302.6mm(21.4 × 11.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Curved
Not available
No8Retailer pagenewegg.com/black-dell-alienware-aw2521h-24-5/p/0JC-0004-00SV8Read 7 October 2026Exact AW2521H 360 Hz retailer table explicitly Flat Panel. No curvature radius zero inferred.
Curvature radius
Not available
Not available
Screen surface
Matte2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Display Surface: Anti-Glare. TFTCentral calls it a light anti-glare coating.
Matte10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact AW2521H descriptive source, consistent with maker anti-glare 3H. No named coating replacement.
Anti-reflection coating
Anti-Glare2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Display Surface, verbatim.
Anti-glare with 3H hardness2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Touchscreen
Not available
No9Retailer pagesenetic.co.uk/product/GAME-AW2521HRead 7 October 2026Exact GAME-AW2521H retailer table. Other template values conflicting with maker not adopted.

Panel

6 of 31 differ
Panel type
Fast IPS2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Panel Type: Fast IPS.
Fast IPS2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Panel type (as published)
Fast IPS2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Panel Type, verbatim.
Fast IPS2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Backlight
Not available
Edge-lit LED2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Local dimming
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Movies and Video table: DisplayHDR 400 does not require local dimming and this monitor has none, so it cannot offer improved dynamic range.
No11Reviewrtings.com/monitor/reviews/dell/alienware-aw2521hRead 7 October 2026Own tested exact AW2521H public HDR verdict explicitly has no local dimming. Maker Variable Backlight changes whole backlight intensity. It is dynamic/global backlight control, not independent local zones. DisplayNinja independently agrees. No zone count zero inferred.
Dimming zones
Not available
Not available
Panel maker
AU Optronics4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Responsiveness and Gaming section: AU Optronics M270HAN03.0 AHVA panel.
AU Optronics10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact AW2521H supplier explicitly named. AHVA is IPS-like AUO technology, not VA. Exact part number and panel generation not published.
Panel part number
M270HAN03.04Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Responsiveness and Gaming section.
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Not available
Colour depth
8bits6Press articletftcentral.co.uk/news/asus-tuf-gaming-vg279qm-with-280hz-refresh-rate-ips-panel-and-elmb-syncRead 10 October 2026TFTCentral news: 8-bit colour depth. The review also says 8-bit colour depth.
8bits10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Exact native panel statement. Supported high-bit input is not native 10-bit. DisplaySpecifications independently says 8 bits with FRC No. Epey 6-bit+FRC row is inconsistent with these specialist sources and appears template contamination.
Colour depth method
Native5Reviewdisplayninja.com/asus-vg279qm-reviewRead 10 October 2026Specifications: 16.7 million colors (true 8-bit).
Native10Reviewpcmonitors.info/dell/dell-alienware-aw2521h-360hz-full-hd-ips-modelRead 7 October 2026Same explicit true 8-bit panel claim. Does not derive bits from 16.7 million displayed colours.
Displayable colours
16.7 million2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Display Colors: 16.7M.
16.7 million2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
sRGB coverage
99%2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Color Space (sRGB): 99%. The maker does not say whether this is coverage or volume. TFTCentral measured 108.6 percent sRGB gamut volume.
99%2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own 99% sRGB claim. CIE basis is unstated.
DCI-P3 coverage
Not available
Not available
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Not available
Yes15Reviewdisplayninja.com/dell-alienware-aw2521h-reviewRead 7 October 2026Exact descriptive calibration claim. Maker existing calibration accuracy target is ΔE2000 <1.5 average. Review measurement can vary and remains separate. No paper report claim inferred.
Claimed Delta E
Not available
1.52Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own average Delta E 2000 < 1.5 alongside sRGB 99% colour claim. Preset and detailed test conditions are unstated. This maker calibration target is not a reviewed colour-error result.
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,000:12Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Contrast Ratio (Typ.): 1000:1. The user guide also lists 100,000,000:1 with ASCR on, which is not stored.
1,000:12Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Brightness (typical, SDR)
400nits2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Brightness (Typ.): 400 cd/m2.
400nits2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Brightness (maker minimum)
Not available
Not available
Peak brightness (HDR)
400nits2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Brightness (HDR, Peak): 400 cd/m2.
Not available
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
HDR102Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026HDR (High Dynamic Range) Support: HDR10.
HDR102Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
HDR certification
DisplayHDR 4002Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Certificate: VESA DisplayHDR 400.
Not available
Viewing angle (horizontal)
178°2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Viewing Angle (CR>=10, H/V): 178 / 178.
178°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Viewing angle (vertical)
178°2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Viewing Angle (CR>=10, H/V): 178 / 178.
178°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026

Refresh rate and motion

12 of 22 differ
Refresh rate per resolution and port
AASUS TUF Gaming VG279QM
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.2
1920 × 1080Native240Hz280Hz
Source2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Signal Frequency: DisplayPort 48 to 280 Hz vertical, HDMI 48 to 240 Hz vertical. The user guide says the Overclocking setting allows a 280 Hz maximum on DisplayPort only, and TFTCentral says the overclock is not guaranteed on every sample and can be limited to 270 Hz. Bit depth and chroma are not stated.
BDell Alienware AW2521H
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.0DisplayPort 1.4
1920 × 1080Native240Hz360Hz
Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Resolution Specifications explicitly maximum native resolution at the stated DP and HDMI rates. Bit depth, chroma, DSC and lower-resolution maxima are unproved and omitted.
Max refresh rate
280Hz
360Hz
Max refresh rate at native resolution
280Hz
360Hz
Max refresh rate over DisplayPort
280Hz
360Hz
Max refresh rate over HDMI
240Hz
240Hz
Max refresh rate over USB-C
Not available
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Overclocking and VRR section: the native refresh rate is 240 Hz.
360Hz2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Overclocked refresh rate
280Hz2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Refresh Rate (Max): 280Hz, reached with the OSD Overclocking option on DisplayPort.
Not available
Dual mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, G-SYNC Compatible, HDMI VRR2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026VRR Technology: Yes (Adaptive-Sync) and the G-SYNC Compatible badge. TFTCentral confirms the NVIDIA certification and HDMI-VRR support for consoles.
G-SYNC2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Product Features names the native NVIDIA tier. Generic scan intervals are not actual VRR ranges, and AMD compatibility or certification is not borrowed from similar models.
VRR range per port
AASUS TUF Gaming VG279QM
InputMin (Hz)Max (Hz)
DisplayPort48280
HDMI48240
Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026OSD Gaming menu: Adaptive-Sync can only be activated within 48Hz to 240Hz for HDMI and 48Hz to 280Hz for DisplayPort. The DisplayPort maximum needs the overclock.
BDell Alienware AW2521H
Not available
Low framerate compensation
Not available
Not available
Response time (maker GtG claim)
1ms2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Response Time: 1ms (GTG).
1ms2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own fastest maker GtG 1 ms in Extreme, with potential visible artifacts. Super Fast 2 ms and Fast 3 ms are separate settings.
Response time (maker MPRT claim)
1ms1Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qmRead 10 October 2026ELMB section: a 1ms response time (MPRT).
Not available
Overdrive settings
0, 20, 40, 60, 80, 1004Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Response Times section: the OSD Over Drive option has 6 levels, 0, 20, 40, 60, 80 and 100.
Fast, Super Fast, Extreme2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Motion blur reduction
Yes2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Extreme Low Motion Blur: Yes.
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own NVIDIA ULMB paragraph supports only direct DisplayPort at fixed 144 or 240 Hz, not through a dongle/hub. It is not the normal 360 Hz operating mode.
Blur-reduction technology
ELMB SYNC1Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qmRead 10 October 2026Extreme Low Motion Blur Sync (ELMB SYNC).
NVIDIA ULMB2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Blur reduction works with VRR
Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026OSD Gaming menu: ELMB SYNC can be turned on when Adaptive-Sync (DP) / Variable Refresh Rate is On. TFTCentral confirms strobing and VRR can run together.
No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own NVIDIA ULMB paragraph expressly requires Enable G-SYNC not selected in NVIDIA Control Panel.
Flicker-free (claimed)
Yes2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Flicker-free: Yes. TFTCentral found no PWM at any brightness.
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Black frame insertion
Not available
Not available

Measured

4 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
3.6ms4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Detailed Response Times: average G2G of 3.6 ms at the native 240 Hz with Over Drive 80, TFTCentral's 2020 oscilloscope method. At the overclocked 280 Hz with Over Drive 80 it was 4.0 ms. The best case at Over Drive 100 and 280 Hz was 0.9 ms with heavy overshoot.
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
1,135:14Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Default Performance and Setup: static contrast 1135:1 at the default 70 percent brightness. The brightness section gives an average of 1128:1 across the range.
890.4:118Measurementtomshardware.com/reviews/alienware-aw2521h-360hz-monitor/2Read 7 October 2026Own exact AW2521H review uncalibrated maximum-backlight static white/black ratio, Custom Color mode per page 3 methodology, Variable Backlight off. Separate approximately 1300:1 dynamic and 918.9:1 ANSI excluded. Linked methodology full-field white/black patterns and ratio. LaptopMedia 1040:1 in Standard mode is a different picture condition, not silent replacement.
SDR brightness (measured)
378nits4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Brightness and Contrast: 378 cd/m2 at full OSD brightness, range 98 to 378 cd/m2.
440nits17Measurementlaptopmedia.com/review/alienware-aw2521hRead 7 October 2026Own AW2521H June 20, 2022 lab review: maximum white luminance at screen centre in Standard SDR mode. NVIDIA RTX 2060 display connection. Test-window percentage and meter model not named in public prose, not fabricated. Tom’s Hardware Custom Color sample just over 460 and Quasar 464.1 under different/unstated settings are not interchangeable maker replacements.
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
2.24Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Default Performance and Setup: average dE 2.2, maximum 7.6, at default settings in Racing Mode, before calibration, i1 Pro 2 and LaCie Blue Eye Pro.
2.433419Measurementtomshardware.com/reviews/alienware-aw2521h-360hz-monitor/3Read 7 October 2026Exact own AW2521H uncalibrated first colour chart explicitly reads Color Gamut - Standard, default and Avg dE2000 2.4334, with CIE1976 u′v′ geometry and sRGB reference. Specific chart identifies Standard/default, while generic prose says testing and calibration in Custom Color. This mode-label discrepancy is retained, not silently resolved. Out-of-box state is independently explicit in the adjacent text. Post-calibration 1.50 and grayscale 3.11 excluded.
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

9 of 19 differ
Video inputs
AASUS TUF Gaming VG279QM
TypeVersionCount
DisplayPort1.21
HDMI2.02
Source2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026I/O Ports: DisplayPort 1.2 x 1 and HDMI (v2.0) x 2.
BDell Alienware AW2521H
TypeVersionCount
DisplayPort1.41
HDMI2.02
Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.0
Highest DisplayPort version
1.2
1.4
HDMI features
VRR4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Specifications and Features: HDMI supports VRR for games consoles.
Not available
USB-C video (DP Alt Mode)
Not available
No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no USB-C socket.
USB-C power delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
AASUS TUF Gaming VG279QM
Not available
BDell Alienware AW2521H
ConnectorUSB versionCount
USB-B3.2 Gen 11
Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
USB downstream hub ports
AASUS TUF Gaming VG279QM
Not available
BDell Alienware AW2521H
ConnectorUSB versionCount
USB-A3.2 Gen 14
Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own total four peripheral Type-A sockets, including one charging socket. Charging and Reflex functions do not add sockets.
KVM switch
Not available
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
Not available
No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no Ethernet socket.
3.5 mm headphone output
Yes2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026I/O Ports: Earphone Jack Yes.
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own headphone port is separate from rear line-out, which explicitly does not support headphones.
3.5 mm microphone input
Not available
No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has analog output sockets only, with no microphone input.
Optical out
Not available
No2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no optical audio socket.
Picture in picture
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Movies and Video table: PiP / PbP neither supported.
No13Revieweftm.com/2021/03/review-alienware-aw2521h-gaming-monitor-207972/ampRead 7 October 2026Own exact AW2521H hands-on explicitly no multi-input PIP/PBP support. Consistent with complete maker OSD feature inventory.
Picture by picture
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Movies and Video table: PiP / PbP neither supported.
No13Revieweftm.com/2021/03/review-alienware-aw2521h-gaming-monitor-207972/ampRead 7 October 2026Same explicit sentence. Resolution switching does not mean simultaneous sources.

Smart features

None of 4 known
Smart platform
Not available
Not available
Wi-Fi
Not available
Not available
Bluetooth
Not available
Not available
Remote control
Not available
Not available

Audio and camera

3 of 5 differ
Speakers
Yes2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Audio: Speaker Yes (2Wx2).
No12Reviewtomshardware.com/reviews/alienware-aw2521h-360hz-monitorRead 7 October 2026Exact 360 Hz AW2521H table and physical review state no internal speakers. No speaker count or per-channel power zero stored.
Number of speakers
22Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Audio: Speaker 2W x 2.
Not available
Speaker power per channel
2W3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: Speaker (Built-in) 2 W x 2 Stereo, RMS.
Not available
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

7 of 15 differ
Stand height adjustment
130mm2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Height Adjustment: 0~130mm. TFTCentral measured 130 mm of travel.
130mm2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Tilt
Forward5°Backward33°2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Tilt: Yes (+33 to -5 degrees).
Forward5°Backward21°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Swivel
Left90°Right90°2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Swivel: Yes (+90 to -90 degrees).
Left20°Right20°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Pivot
Counterclockwise90°Clockwise90°2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Pivot: Yes (+90 to -90 degrees), clockwise and counterclockwise.
Counterclockwise90°Clockwise90°2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Removable stand
Yes4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Design and Ergonomics: the stand can be removed by unscrewing it, with VESA 100mm holes behind.
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
VESA mount
100 x 1002Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026VESA Wall Mounting: 100x100mm.
100 x 1002Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
VESA adapter needed
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Design and Ergonomics: VESA 100mm mounting holes sit behind the stand.
No14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker VESA wall mounting page 36: remove stand and four plastic-cover screws, then directly attach compatible wall mounting bracket with specified M4 screws. No proprietary adapter required. Optional wall bracket is separate from adapter.
Security lock slot
Yes2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Kensington Lock: Yes.
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
On-screen menu controls
Joystick, Buttons4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026Design and Ergonomics: a joystick and 3 pressable buttons on the back right.
Joystick, Buttons2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Desktop software
Not available
Alienware Command Center (AWCC)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own AWCC/AlienFX section controls LED lighting effects. It does not establish software control of the display OSD.
User firmware updates
Not available
Not available
Ambient light sensor
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026General and Office Applications: no ambient light sensors, motion sensors or card readers.
Yes14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker-authored AW2521H/AW2521Hb 2022 user guide. OSD page 52 explicitly says the ambient light sensor automatically adjusts backlight brightness, default Off and disabled for HDR. Physical presence is separately named by the maker reviewer sheet. Dell-hosted PDF routes were unavailable, and this public authentic guide mirror was downloaded and read independently.
Presence sensor
No4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026General and Office Applications: no motion sensors.
Not available
RGB lighting
Not available
Yes2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own AlienFX section explicitly supports RGB colour codes and effects across physical lighting zones.
Gaming menu features
Crosshair, Timer, FPS counter, Display Alignment, Sniper, Shadow Boost3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026GamePlus function: crosshair, timer, FPS counter, display alignment and sniper. Shadow Boost is in the Gaming menu.
Timer, Frame Rate, Display Alignment, Dark Stabilizer, NVIDIA Reflex Latency Analyzer2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Reflex Latency Analyzer is a system-latency feature, not a monitor-only measured-lag value.

OLED care

None of 3 known
OLED care
Not available
Not available
Burn-in covered by warranty
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width619.4Height (lowest)376Height (highest)506.7Depth211.4mm(24.4 × 14.8 to 19.9 × 8.3 in)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Phys. Dimension (W x H x D): 61.94 x 50.67 x 21.14 cm at the highest position. The lowest height of 376 mm comes from the user guide, which gives 619 x 506 x 211 mm highest and 619 x 376 x 211 mm lowest.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: 619 x 506 x 211 mm highest and 619 x 376 x 211 mm lowest. Width, maximum height and depth are taken from the more precise tech spec page.
Width556.3Height (lowest)421.2Height (highest)526.1Depth251.9mm(21.9 × 16.6 to 20.7 × 9.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own complete display width/depth are direct. Height endpoints come from the maker guide mirror listed below, which labels the overall envelope separately from the 130 mm panel travel.14Owner's manualm.media-amazon.com/images/I/C1BEKAl2z0L.pdfRead 7 October 2026Maker guide page 19 explicitly labels overall with-stand height: extended 526.1 mm, compressed 421.2 mm. Separate stand-only heights are 436.8/421.2 mm, and panel travel is separately 130 mm. Main approved literal overall endpoints without forcing their difference to equal panel travel.
Dimensions without stand
Width619.4Height362.7Depth50.6mm(24.4 × 14.3 × 2 in)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Phys. Dimension without Stand (W x H x D): 61.94 x 36.27 x 5.06 cm. The user guide gives 619 x 363 x 50 mm.
Width556.3Height328.2Depth84.4mm(21.9 × 12.9 × 3.3 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Stand footprint
Not available
Width465.2Depth251.9mm(18.3 × 9.9 in)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own physical table stand width 465.2 mm and depth 251.9 mm, separate from panel-body width.
Weight with stand
5.6kg(12.3 lb)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Net Weight: 5.6 kg. The user guide also says 5.6 kg.
8.1kg(17.9 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own weight with stand assembly and cables.
Weight without stand
3.3kg(7.3 lb)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Net Weight without Stand: 3.3 kg.
4.5kg(9.9 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own no-stand/no-cable weight for VESA considerations.
Box dimensions
Not available
Not available
Box weight
8.2kg(18.1 lb)2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Gross Weight: 8.2 kg.
12.3kg(27.1 lb)2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own packaged weight.

Power

10 of 13 differ
Power supply
External adapter3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: DC 19V, 3.42A (AC adapter). The accessories include a power adapter.
Internal2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Adapter rating
Not available
Not available
Input voltage
100-240 V AC, 50/60 Hz2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Voltage: 100-240V, 50/60Hz.
100-240 V AC, 50/60 Hz2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Power use (typical)
Not available
21.232W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own Pon uses the Energy Star reference method. Separate EU on-mode value is not substituted for this claim.
Power use (max)
65W3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: Power On < 65 W. Published as less than 65 W, and the maker does not say whether this is a maximum or a typical figure.
83W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own maximum brightness/contrast with maximum loading on all USB ports.
Power use SDR (EU label)
Not available
19.1W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own electrical on-mode value as defined in EU 2019/2021 and 2019/2013, separate from Energy Star Pon.
Power use HDR (EU label)
Not available
18.3W21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU fiche row 6. EU label HDR on-mode test power, not US typical or peak consumption. Same model identifier and SDR 19.1, standby 0.4/off 0.3 agree original/current maker guide. No EU warranty or support term added.
Standby power
0.5W3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: Standby < 0.5 W. Published as less than 0.5 W.
0.4W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
Off-mode power
0.3W3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Specifications summary: Power Off < 0.3 W. Published as less than 0.3 W.
0.3W2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026
EU energy class SDR
Not available
E21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU2019/2013 energy classification under EU registration364442. Regional regulatory test scope.
EU energy class HDR
Not available
E21EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/fichesRead 7 October 2026Exact AW2521H EU2019/2013 HDR classification. No automatic conversion from power.
Energy per 1000 h SDR
Not available
19kWh22EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/labelsRead 7 October 2026Original exact AW2521H EU energy label, upper SDR value 19 kWh per 1000 h, class E. Public label downloaded, extracted and visually checked. Not calculated from 19.1 W fiche.
Energy per 1000 h HDR
Not available
18kWh22EU energy label (EPREL)eprel.ec.europa.eu/api/product/364442/labelsRead 7 October 2026Original exact AW2521H EU energy label lower HDR value 18 kWh per 1000 h, class E. Not calculated from 18.3 W fiche. Regional regulatory test scope, no EU warranty/support terms.

Certifications

2 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Low Blue Light, Flicker-free2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Certificate badges: TUV Low Blue Light and TUV Flicker-free.
Not available
Low blue light
Software4Measurementtftcentral.co.uk/reviews/asus_tuf_gaming_vg279qmRead 10 October 2026General and Office Applications: 4 selectable blue light filter modes in the OSD. The maker lists a TUV Low Blue Light badge.
Software2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own ComfortView preset reduces blue emission through software setting. No unproved hardware-solution certification is inferred.
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
UL/cUL, CB, CE, ErP, FCC, CCC, CU, RCM, BSMI, VCCI, RoHS, J-MOSS, WEEE, Windows 7 & 8.1 & 10 WHQL, CEL, MEPS, PSE, UkrSEPRO, KCC, E-Standby, ICES-3, PC Recycle3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/VG279QM/VG279QM_English.pdfRead 10 October 2026Compliance and Standards, verbatim, without the TUV items listed above.
Not available

In the box

2 of 2 differ
In the box
Warranty Card, Quick start guide, Power cord, Power adapter, HDMI cable, DisplayPort cable, Certificate2Maker product pageasus.com/displays-desktops/monitors/gaming/tuf-gaming-vg279qm/techspecRead 10 October 2026Accessories, verbatim. The page says they vary by region and the user guide lists the DisplayPort and HDMI cables as optional.
Display, Stand riser, Stand base, I/O cover, Power cable (varies by country), DisplayPort to DisplayPort cable, Mini DisplayPort to DisplayPort cable, USB 3.2 Gen 1 upstream cable, Quick setup guide, Safety, Environmental and Regulatory Information, Alienware welcome card2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own exact Package Contents. Optional market items and power cable can vary. HDMI cable is not listed and electrical cable description explicitly says not included.
Cables included
AASUS TUF Gaming VG279QM
Not available
BDell Alienware AW2521H
TypeCount
Power cable1
DisplayPort to DisplayPort cable1
Mini DisplayPort to DisplayPort cable1
USB 3.2 Gen 1 upstream cable1
Source2Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521h-monitor_user%27s-guide_en-us.pdfRead 5 October 2026Own package table pictures/lists one each. Lengths are preserved only where this exact guide states them.

Warranty

2 of 2 differ
Manufacturer warranty (source market)
Not available
3years1Maker product pagedell.com/en-us/shop/alienware-25-gaming-monitor-aw2521h/apd/210-aycbRead 5 October 2026Exact US maker limited hardware warranty 3 years, with region-specific service terms.
Dead pixel policy
Not available
Premium Panel Exchange: zero bright pixels/subpixels. Up to 5 dark subpixels and up to 5 combined defects allowed.16Maker product pagedell.com/support/kbdoc/en-us/000126004/dell-display-pixel-guidelinesRead 7 October 2026Exact current Dell US premium-panel table covers all Alienware except listed newer exceptions, none AW2521H. Exact original AW2521H reviewer sheet independently bundles Premium Panel Exchange with 3-year Advanced Exchange Service. Defect thresholds apply during warranty. Partial subpixel anomalies excluded under policy. Bright pixels and dark subpixels distinguished.

Both are also in the API. Back to all monitors.