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LG UltraGear 25G590B vs LG UltraGear evo GM9 27GM950B

Product A: LG

UltraGear 25G590B

105 of 172 known
Change LG UltraGear 25G590B

Compare the LG UltraGear evo GM9 27GM950B with

Product B: LG

UltraGear evo GM9 27GM950B

97 of 172 known
Change LG UltraGear evo GM9 27GM950B

Compare the LG UltraGear 25G590B with

83 of 164 fields differ

Download CSVDownload JSON
  • 43 different values
  • 40 known for one only
  • 33 the same
  • 48 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. Refresh rateA: 1,100HzB: 165HzUltraGear 25G590B is 6.7 times higher.
  2. Pixel densityA: 89.9ppiB: 217.6ppiUltraGear evo GM9 27GM950B is 127.7 ppi higher.
  3. Power use SDR (EU label)Lower is betterA: 18.1WB: 41.6WUltraGear 25G590B is 23.5 W lower.
  4. Power use HDR (EU label)Lower is betterA: 28.5WB: 53.5WUltraGear 25G590B is 25 W lower.
  5. Brightness (typical, SDR)A: 400nitsB: 750nitsUltraGear evo GM9 27GM950B is 350 nits higher.

Refresh rate per resolution

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

5120 × 2880Native for B
ANot listed
B165Hz
4736 × 2664
ANot listed
B165Hz
2560 × 1440
ANot listed
B330Hz
2368 × 1332
ANot listed
B330Hz
1920 × 1080Native for A
A1100Hz
BNot listed

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
A5.2kg
B8.5kg
Weight without stand
A3.5kg
B5.7kg
Box weight
A7.1kg
B11.9kg

All 172 fields

Every value links to where we found it.

ALG UltraGear 25G590B
BLG UltraGear evo GM9 27GM950B

General

6 of 8 differ
Series
UltraGear1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Product name UltraGear, 25-inch UltraGear G5.
UltraGear evo GM91Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. product title. This is the LCD Hyper Mini LED family.
Model numbers
25G590B-B, 25G590B, 25G590B-B.AUS, 25G590B-B.AEK, 25G590B-B.AEU2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026The Canada page title and URL use 25G590B-B.AUS. The EU sheet uses 25G590B.3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Page data lists model 25G590B-B with SKU 25G590B-B.AEK.EEUK.UK.C.8Maker product pagelg.com/pl/monitory/ultragear-gaming/25g590b-bRead 14 October 2026Page data lists model 25G590B-B with SKU 25G590B-B.AEU.EEPL.PL.C. The EU sheet uses 25G590B.
27GM950B-B1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Exact U.S. SKU, corroborated own 27GM950B manual cover and original 27GM950B-B.AUS sheet.
GTIN / EAN
8806096933923, 88060969337253Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Page data lists EAN 8806096933923 for the UK model 25G590B-B.AEK.8Maker product pagelg.com/pl/monitory/ultragear-gaming/25g590b-bRead 14 October 2026Page data lists EAN 8806096933725 for the Polish model 25G590B-B.AEU.
1951741477261Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Exact own U.S. AllInfo UPC, matching original U.S. sheet. Japanese JAN is excluded.
Announced
May 20269Press articlehothardware.com/news/lg-ultragear-25g590b-preorders-openRead 14 October 2026The article says it debuted a little over three months before 2026-08-25. LG footnotes cite information as of 2026-05-19 (KST) for the world-first claim. May 2026 is used.
Not available
Status
Available3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026The LG UK page lists the monitor for sale. Canada and the US also list it with prices. Stock is not stated.
Not available
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$999.999Press articlehothardware.com/news/lg-ultragear-25g590b-preorders-openRead 14 October 2026Price 999.99 USD, pre-order direct from LG in the US, before sales tax. Guru3D and Basic Tutorials give the same figure.11Press articleguru3d.com/story/lg-ultragear-25g590b-1000hz-monitor-opens-for-preorder-atRead 14 October 2026Published 2026-08-27: US pre-orders at 999.99 USD. It lists a 24.5-inch IPS, native 1,000 Hz and an overclocked 1,100 Hz mode.
$1,199.998Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own April 7 maker U.S. release PDF page 1 News Summary expressly $1199.99 for GM9. Later body rounds to $1199. Current maker original MSRP agrees. Preorder price does not prove actual delivered retail date.
Launch price (EU)
€99910Press articlebasic-tutorials.com/news/lg-ultragear-25g590b-first-native-1000-hz-full-hd-gaming-monitor-starts-at-999-eurosRead 14 October 2026Article of 2026-08-26: MSRP 999 euros in Germany, pre-orders since 2026-07-30. The article says 999 euros / 999.99 US dollars (MSRP). Tax treatment is not stated. German consumer prices include VAT.
Not available
Markets
Not available
Not available
Colours
Black3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026The UK product title ends with Black.
Not available
Segment
Gaming2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026LG lists it as an UltraGear gaming monitor.
Gaming1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker gaming-monitor classification.

Display

7 of 12 differ
Screen size
24.5in(62.2 cm)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026All Spec: Size 24.5 inch (62.1 cm). LG marketing calls it 25-inch and the EU sheet rounds to 25 inches. 24.5 matches the pixel pitch.
27in(68.6 cm)1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. advertised 27-inch size. No more precise viewable diagonal is invented.
Viewable screen diagonal
Not available
Not available
Native resolution
1920 × 1080px2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Resolution 1920 x 1080.
5120 × 2880px1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own exact AllInfo native 5K. Native panel resolution is distinct from lower-resolution Dual Mode.
Aspect ratio
16:92Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026
16:91Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker table, matching native pixel ratio.
Pixel density
89.9ppi
217.6ppi
Pixel pitch
0.282mm2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 20260.282 (H) x 0.281 (V) (1 pixel). The horizontal pitch is stored.
0.1166mm1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own horizontal and vertical pixel pitch 0.11655 mm. Japanese published whole-mm active area is consistent with rounding.
Active display area
Not available
Width597Height336mm(23.5 × 13.2 in)4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original 27GM950B-B technical table active 597 x 336 mm. Whole-mm published precision is retained. It is not calculated from rounded pitch.
Curved
No2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026No curvature is listed. The UK table shows Curvature as not applicable.
No5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact-model front and right-side maker gallery photographs show a flat panel. The side image depicts straight front-screen geometry. No radius or curve is inferred from display size or IPS technology.
Curvature radius
Not available
Not available
Screen surface
Not available
Matte9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact concluding paragraph explicitly anti-glare matte finish. Matte plastic chassis alone is not used as screen evidence.
Anti-reflection coating
Anti-Glare2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Surface Treatment: Anti-Glare. The ATW (Advanced True Wide) polarizer is a separate feature.
Not available
Touchscreen
Not available
Not available

Panel

12 of 31 differ
Panel type
IPS2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Panel Type IPS.
IPS1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own AllInfo Display Type IPS, independently original U.S. technical sheet.
Panel type (as published)
IPS2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026
Not available
Backlight
Not available
Mini-LED2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own Mini-LED Technology Yes and Hyper Mini LED product identity. This is a backlit IPS LCD, not self-emissive OLED.
Local dimming
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026The UK table lists Mini-LED Technology and Nano IPS as not applicable. PurePC confirms no local dimming.7Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC says the monitor has no local dimming and only a basic backlight control.
Yes2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own original U.S. Local Dimming Zone 2304. Exact manual page 20 has adjustable Local Dimming control.
Dimming zones
Not available
2,3042Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own exact Local Dimming Zone row 2304, independently primary release. Physical mini LEDs total 9216 and are not zone count.8Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own exact GM9 paragraph PDF page 2 separately states 9216 physical mini LEDs and 2304 local dimming zones. Original U.S. sheet agrees.
Panel maker
Not available
Not available
Panel part number
Not available
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Not available
Colour depth
8bits2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 20264Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Product Specification p 21: 8-bit color is supported.
10bits3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 expressly supports 8-bit/10-bit colour. This proves supported per-channel depth, not native panel method or the bit depth of each maximum-rate mode.
Colour depth method
Not available
Not available
Displayable colours
16.7 million2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Color Depth (Number of Colors) 16.7M, written as 16.7 million.
1.06 billion1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own literal 1.06B. This is not changed to 1.07B. Native/FRC implementation is unstated.
sRGB coverage
99%2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Color Gamut (Typ.) sRGB 99% (CIE1931). The minimum is also sRGB 99% (CIE1931).
Not available
DCI-P3 coverage
90%2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Color Gamut (Min.) lists DCI 90% (CIE1976). It is a minimum figure. PurePC measured 84.4% DCI-P3 coverage in User mode, below LG's claim.
99%1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own typical DCI-P3 99%, CIE 1976. Coverage, not gamut volume. Minimum 95% on the UK page is a separate guarantee.
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Color Calibrated in Factory YES.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Factory Calibration Yes. Physical paper report is not established.
Claimed Delta E
Not available
Not available
Paper calibration report in box
Not available
Not available
Hardware calibration support
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026HW Calibration: HW Calibration Ready. LG Calibration Studio (True Color Pro) is listed. The manual says to install it to run calibration for the Calibration 1 and 2 picture modes.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Picture Adjust: Calibration 1 and Calibration 2 adjust to the calibrated screen after LG Calibration Studio is run.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own H/W Calibration True Color Pro Yes, original sheet Ready, and own manual SDR calibrated profiles using LG Calibration Studio. Ordinary ICC calibration is not substituted.
Static contrast ratio
1,000:12Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Contrast Ratio (Typ.) 1000:1. The minimum is 700:1.
1,000:11Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own panel native static 1000:1. Local-dimming dynamic contrast and reviewer prose are separate.
Brightness (typical, SDR)
400nits2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Brightness (Typ.) 400 cd/m2.
750nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own typical SDR 750 cd/m². Window, local-dimming setting and picture preset are unstated.
Brightness (maker minimum)
320nits2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Brightness (Min.) 320 cd/m2.
600nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own maker minimum 600 cd/m², not lowest adjustable brightness.
Peak brightness (HDR)
Not available
1,250nits1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own peak 1250 cd/m², independently exact UK HDR/DisplayHDR feature. Maker internal test conditions are unstated. No window percentage, real scene or full-screen value inferred.
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
HDR102Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026HDR 10 YES. HDR Effect is a picture mode.
HDR101Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own HDR10 Yes. HDR Effect is SDR processing and is not another accepted HDR format.
HDR certification
DisplayHDR 4002Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026VESA DisplayHDR 400.
DisplayHDR 10001Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own VESA DisplayHDR 1000. This is the LCD certification, not OLED True Black.
Viewing angle (horizontal)
178°2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Viewing Angle (CR>=10) 178 degrees (R/L).
178°1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 178 degrees R/L. UK technical table specifies CR at least 10.
Viewing angle (vertical)
178°2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Viewing Angle (CR>=10) 178 degrees (U/D).
178°1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 178 degrees U/D. UK technical table specifies CR at least 10.

Refresh rate and motion

15 of 22 differ
Refresh rate per resolution and port
ALG UltraGear 25G590B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1
1920 × 1080Native1000Hz8-bit1100Hz8-bit, DSC
Source4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Product Specification p 21: Max Resolution 1920 x 1080 @ 1000 Hz (HDMI) and 1920 x 1080 @ 1100 Hz (DisplayPort) (Overclock). Support Mode tables pp 22-23: the 999.950 Hz timing is Recommended for HDMI Input Compatibility Version 2.1(PC) and for DisplayPort versions 1.4 (DSC) and 2.1 (DSC). The 1100 Hz timing is the Overclock recommended timing and needs DSC support on the graphics card. DP 1100 Hz is the overclock mode. PurePC could not hold more than 240 Hz over HDMI on its RTX 5080 test setup. The maker's table is kept.
BLG UltraGear evo GM9 27GM950B
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 2.1 UHBR20USB-C DisplayPort 1.4 Alt Mode
5120 × 2880Native165Hz165Hz144Hz
4736 × 2664165Hz165Hz144Hz
2560 × 1440330Hz330Hz288Hz
2368 × 1332330Hz330Hz288Hz
Source3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19 explicitly bounds Dual Mode Off Full Wide native 5120 x 2880 and Off 24.5-inch crop 4736 x 2664 at 165 Hz HDMI/DP or 144 Hz USB-C. Dual Mode On Full Wide 2560 x 1440 and On 24.5-inch crop 2368 x 1332 are bounded at 330 Hz HDMI/DP or 288 Hz USB-C. Own input support tables pages 24-27 accept these matching signals. Explicit per-input ceilings establish maxima, not presets alone. HDMI native requires 2.1(PC), DP native 1.4 or 2.1 and USB-C native 1.4(USB-C) compatibility. Host, cable, USB-C resolution/data preference and GPU performance can affect operation. Per-mode DSC, depth and chroma unstated and omitted.
Max refresh rate
1,100Hz
330Hz
Max refresh rate at native resolution
1,100Hz
165Hz
Max refresh rate over DisplayPort
1,100Hz
165Hz
Max refresh rate over HDMI
1,000Hz
165Hz
Max refresh rate over USB-C
Not available
144Hz
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
1,000Hz1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Key feature: NATIVE 1000Hz Refresh Rate (Up to 1100Hz Overclock). The maximum needs Windows 11, an NVIDIA RTX 50 series or AMD RX 9070, 9060 or 7900 series GPU and a DisplayPort 2.1 connection. LG verified 1000 Hz in internal tests.
165Hz1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 165 Hz at native 5K on HDMI/DP. USB-C native maximum is separately 144 Hz in current manual.
Overclocked refresh rate
1,100Hz1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Up to 1100Hz Overclock. Footnote: 1100 Hz overclock is evaluated based on internal testing.
Not available
Dual mode
No1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026The LG FAQ on the Canada page says it delivers native 1000 Hz in FHD at all times, unlike dual-mode displays.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own explicit 5K 165 Hz / QHD 330 Hz paired mode, with dedicated physical button in manual.
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
Adaptive-Sync, HDMI VRR, FreeSync Premium, G-SYNC Compatible1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Key feature: NVIDIA G-SYNC Compatible / AMD FreeSync Premium. The 1100 Hz overclock does not support FreeSync Premium and G-SYNC is certified only at 1000 Hz.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Game Adjust: Adaptive-Sync/VRR, supported interface DisplayPort (Adaptive-Sync), HDMI (VRR). FreeSync Premium and G-SYNC Compatible come from the spec tables.
G-SYNC Compatible, FreeSync Premium, VESA AdaptiveSync Display1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own exact named G-SYNC Compatible and FreeSync Premium. Original U.S. sheet names VESA Adaptive Sync and VESA Dual-Mode. No FreeSync Premium Pro or native G-SYNC module inherited from erroneous reviewer table.
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Yes11Maker product pageamd.com/en/products/graphics/technologies/freesync.htmlRead 5 October 2026Official AMD makes LFC mandatory for producer-confirmed FreeSync Premium. No unproved per-input VRR interval inferred.
Response time (maker GtG claim)
1ms2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Response Time: Less than 1ms GtG, stored as 1 with the less-than qualifier. The UK page says 1ms. LG's FAQ text on the same page says 0.5 ms GtG. LG does not state the overdrive setting.
1ms1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 1 ms GtG at Faster overdrive. This is a maker fastest claim, not measured mean or MPRT.
Response time (maker MPRT claim)
Not available
Not available
Overdrive settings
Faster, Fast, Normal, Off4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Game Adjust, Response Time: Faster, Fast, Normal, Off.
Not available
Motion blur reduction
Yes1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026MBR Pro (Motion Blur Reduction Pro) uses the backlight between frames.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Motion Blur Reduction Technology Yes. Current manual page 19 lists its operating rates.
Blur-reduction technology
MBR Pro1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026MBR Pro (Motion Blur Reduction Pro).
1ms Motion Blur Reduction4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own exact feature name. Manual page 19 requires HDMI/DP 120, 144 or 165 Hz, or USB-C 120/144 Hz before enabling it. No operation at 330/288 Hz, simultaneous VRR or separate MPRT measurement inferred.
Blur reduction works with VRR
No1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Footnote: AMD FreeSync Premium and NVIDIA G-SYNC Compatible are disabled when MBR Pro is enabled.
Not available
Flicker-free (claimed)
Not available
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Flicker Safe Yes. Strobing Motion Blur Reduction is a separate selectable mode.
Black frame insertion
Not available
Not available

Measured

5 of 12 differ
Input lag at maximum refresh rate
1.2ms7Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC, published 2026-08-27: 1.2 ms input lag at 1000 Hz, 1920 x 1080, default mode, measured with an OSRTT Pro CS.
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
3.05ms7Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC: average grey-to-grey transition about 3.05 ms at 1000 Hz with Overdrive set to Fast, measured with an OSRTT Pro CS. The best single transition was 1.5 ms. LG's 1 ms claim does not state the overdrive setting or the averaging, so the claim and this mean are different measures.
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
1,217:17Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC: contrast ratio 1217:1 in User mode with a black level of 0.3448 cd/m2, measured with a Calibrite Display Plus HL and Calibrite Profiler.
Not available
SDR brightness (measured)
409.6nits7Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC: 409.6 cd/m2 average luminance in User mode at 100 percent backlight, measured with a Calibrite Display Plus HL. Maker typical is 400 nits.
Not available
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)
1.497Measurementpurepc.pl/test-lg-ultragear-25g590b-b-monitor-1000-hz-recenzja-opiniaRead 14 October 2026PurePC: average Delta E 1.49 in User mode before profiling, against sRGB, measured with a Calibrite Display Plus HL. Delta E against DCI-P3 was 1.80 before profiling. After profiling it was 0.74 for sRGB.
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

8 of 19 differ
Video inputs
ALG UltraGear 25G590B
TypeVersionCountMax bandwidth (Gbps)DSC
DisplayPort2.1 UHBR20180Yes
HDMI2.1248Not available
Source1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Key feature: DP 2.1 (UHBR 20) x1, HDMI 2.1 x2. The 80 Gbps figure is the raw UHBR20 link rate. The 48 Gbps HDMI figure is the full HDMI 2.1 rate. PurePC calls the HDMI ports full-bandwidth. LG does not publish either number for this model.2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026DisplayPort YES (1ea), DP Version 2.1. HDMI YES (2ea).
BLG UltraGear evo GM9 27GM950B
TypeVersionCount
DisplayPort2.1 UHBR201
HDMI2.12
USB-CDisplayPort 1.4 Alt Mode1
Source2Maker spec sheet (PDF)files.bbystatic.com/us0GylSyMfdsH3lLWlUJkg%3D%3D/61b2cd5e-fa69-47de-b2ad-7c5c7163a994.pdfRead 5 October 2026Own original U.S. Input/Output explicitly DP 2.1 UHBR20 one, HDMI FRL 2.1 two and USB-C DP 1.4 one. No numerical bandwidth, DSC state or port-specific HDCP inferred. UK mislabeled USB-C maximum-resolution row 2.3 is not a rate.
HDMI ports
2
2
DisplayPort ports
1
1
Highest HDMI version
2.1
2.1
Highest DisplayPort version
2.1 UHBR20
2.1 UHBR20
HDMI features
VRR3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026The UK table does not list HDMI features. VRR over HDMI comes from the manual.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Game Adjust: HDMI (VRR). ALLM and others are not stated in the manual.
VRR3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 19 explicitly HDMI VRR supported. Other HDMI feature names are unproved.
USB-C video (DP Alt Mode)
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Connectivity table: USB-C, USB-C max resolution and USB-C power delivery are all not applicable. LG Canada's launch release mentions 90 W power delivery, which conflicts with every spec table and the manual, so it is not used.
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 15 explicitly PD and DP Alternate Mode through USB-C. Monitor power still comes from AC/DC adapter.
USB-C power delivered
Not available
90W1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own 90 W supplied to a compatible host. The monitor requires its separate adapter.
Thunderbolt
Not available
Not available
USB upstream ports
ALG UltraGear 25G590B
ConnectorCount
USB-C1
Source2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026USB Upstream Port YES (via USB-C). The USB version is not stated. The port serves software updates and the headset microphone, not video or power.
BLG UltraGear evo GM9 27GM950B
ConnectorCount
USB-C1
Source1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own USB upstream via USB-C, one socket. USB revision on upstream row unstated.
USB downstream hub ports
ALG UltraGear 25G590B
Not available
BLG UltraGear evo GM9 27GM950B
ConnectorUSB versionCount
USB-A3.2 Gen 12
Source1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own two peripheral ports, USB 3.2 Gen 1. Original sheet agrees. Current manual page 16 says USB-C to USB-C limits downstream to USB 2.0, while USB-C to USB-A supports USB 3.0 with a compatible host.
KVM switch
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Built-in KVM not applicable.
No9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact 27GM950B-B review explicitly says no KVM functionality. Incorrect DP 1.4, FreeSync Premium Pro and native-resolution typos in its final table are not inherited.
Daisy chain (MST)
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Daisy Chain not applicable.
Not available
Ethernet
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026LAN (RJ-45) not applicable.
Not available
3.5 mm headphone output
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Headphone out 4-pole (Sound+Mic).
Yes4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original base-model stereo-mini four-pole headphone/microphone socket. Manual page 16 corroborates shared headset functionality.
3.5 mm microphone input
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026The shared 4-pole headphone jack carries microphone contacts. The manual says the microphone works only with the monitor USB port connected to a PC.
Yes4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own four-pole stereo-mini socket microphone contacts, not a separate socket. Manual page 16 requires upstream USB connection to PC for microphone function.
Optical out
Not available
Not available
Picture in picture
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026PIP not applicable.
Not available
Picture by picture
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026PBP not applicable.
Not available

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

5 of 5 differ
Speakers
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Sound: Speaker not applicable.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own Speaker Yes. Explicit count is sourced separately from exact reviewer wording.
Number of speakers
Not available
29Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact own-model specification explicitly two 7-watt speakers. This states physical speakers, not merely stereo output channels.
Speaker power per channel
Not available
7W5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact Speaker 7 W x 2, independently original Japanese 7 W+7 W. Stored per-channel rated output, not 14 W total.
Webcam
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Camera not applicable.
Not available
Microphone
No3Maker product pagelg.com/uk/monitors/gaming/25g590b-bRead 14 October 2026Mic not applicable.
Not available

Ergonomics and controls

8 of 15 differ
Stand height adjustment
135mm4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Adjusting the Stand Height p 10: Max. 135.0 mm.
130mm3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 10 direct stand travel 130 mm. This is not minimum overall height.
Tilt
Forward5°Backward35°4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Adjusting the Angle p 11: forward or backward from -5 to 35 degrees. Stored as 5 forward and 35 backward.
Forward5°Backward21°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct -5/+21 degrees. Positive directional magnitudes stored.
Swivel
Not available
Left30°Right30°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 direct 30 degrees left and right.
Pivot
Counterclockwise90°Clockwise90°4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Adjusting the Angle p 11: 90 degrees to the left or to the right.
Counterclockwise90°3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 11 explicitly rotates 90 degrees counterclockwise. Clockwise range is not invented.
Removable stand
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026The manual says to remove the stand before installing on a wall mount, by performing the stand attachment in reverse.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Installing on the Wall p 7: remove the stand before installing on a wall mount.
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 8 instructs removing stand before wall mounting by reversing assembly.
VESA mount
100 x 1002Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Wall Mountable 100 x 100 mm.
100 x 1003Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 7 exact rear wall-mount pattern.
VESA adapter needed
Not available
No3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 7-9 attach optional wall bracket directly to rear mounting pattern. No separate VESA adapter required.
Security lock slot
Yes4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Using the Kensington Lock p 6.
Yes3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 6 locking procedure. Kensington cable is optional.
On-screen menu controls
Joystick4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026How to Use the Joystick Button p 10.
Joystick, Buttons, Software3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 9-10 show joystick and dedicated Dual Mode button. Page 18 LG Switch Personalized Picture Wizard and calibrated profiles operate display settings. PCWorld separately confirms LG Switch has the same display controls.9Reviewpcworld.com/article/3215049/lg-ultragear-evo-ai-gm9-review.htmlRead 5 October 2026Exact control paragraph explicitly LG Switch accesses the same monitor controls. Manual joystick and dedicated button evidence is separate.
Desktop software
LG Switch, LG Calibration Studio, Dual Controller2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026SW Application list: LG Calibration Studio (True Color Pro), Dual Controller. The UK table also lists LG Switch. The manual lists Monitor Driver, LG Switch, LG Calibration Studio and Dual Controller.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Supported Drivers and Software p 11: Monitor Driver, LG Switch, LG Calibration Studio, Dual Controller.
LG Switch, LG Calibration Studio3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 13 and 18 name actual display-control apps. Dual Controller sharing software is separate from menu control.
User firmware updates
Yes1Maker product pagelg.com/us/monitors/lg-25g590b-b-gaming-monitorRead 14 October 2026Footnote: a USB Type-C (upstream) connection to a PC is required for monitor software updates.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026The USB-C port is for software updates and the headset microphone (Connecting Peripherals p 14).
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Own exact product page expressly instructs downloading LG Switch to install the latest monitor firmware update for picture performance. This is firmware, not only a desktop layout app.
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Yes2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026RGB LED Lighting: UltraGear Lighting. The manual lists static colours and a Cycling mode for the lighting on the back.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026General menu: UltraGear Lighting for the back of the monitor, with Static 1 to 4, Cycling and Off.
Yes1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own RGB LED Lighting Unity Hexagon Lighting. Manual page 21 documents selectable static colours and cycling.
Gaming menu features
Black Stabilizer, Crosshair, FPS Counter, Dynamic Action Sync2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Features list: Black Stabilizer, Crosshair, FPS Counter, Dynamic Action Sync.4Owner's manualgscs-b2c.lge.com/downloadFileRead 14 October 2026Game Adjust: Black Stabilizer, Crosshair, FPS Counter. Dynamic Action Sync is on the product page.
Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter, AI Upscaling, AI Scene Optimization, AI Sound1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Own AllInfo expressly names Black Stabilizer, Dynamic Action Sync, Crosshair and FPS Counter. AI Upscaling and AI Sound are own page key features, with full AI Boost menu names and conditions separately sourced to manual pages 18-19 and primary release.3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed pages 18-19 name three AI Boost controls and gaming controls, independently own U.S. table for Dynamic Action Sync. Crosshair and FPS Counter are mutually exclusive. AI Scene Optimization requires Personalized Picture, Gamer 1, Gamer 2, FPS, RTS, Vivid or Max Brightness. AI Sound applies to internal speakers and connected headphones. AI Upscaling minimum input is unresolved: April 7 release footnote 12 and current product-page footnote 3 claim at least WFHD, while current own-page footnote 2 recommends 1080p at 60 Hz and PCWorld directly observed 1080p Nintendo Switch upscaling. Stored feature names do not assert a minimum input resolution.

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
Width571.8Depth207.3mm(22.5 × 8.2 in)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Dimension with Stand (W x H x D) 571.8 x 511.2 x 207.3 mm. The stand position behind the 511.2 mm height is not stated, so only width and depth are stored.
Width615Height (lowest)405Height (highest)535Depth249mm(24.2 × 15.9 to 21.1 × 9.8 in)4Maker product pagelg.com/jp/monitors/gaming-monitors/27gm950b-bRead 5 October 2026Own original base-model table directly states 615 x 405-535 x 249 mm with stand. All dimensions retain this whole-mm source precision and explicitly published minimum/maximum height endpoints. Own U.S. manual and UK 614.5 x 535.3 x 249.1 mm corroborate the rounded upper position. Minimum height is not computed from stand travel. Regional warranty, package cables and Japanese JAN are not inherited.
Dimensions without stand
Width571.8Height333.4Depth43.4mm(22.5 × 13.1 × 1.7 in)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Dimension without Stand (W x H x D) 571.8 x 333.4 x 43.4 mm.
Width614.5Height360.1Depth70mm(24.2 × 14.2 × 2.8 in)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 direct body metrics, independently exact UK table. Rounded inches in early U.S. sheet are not converted.
Stand footprint
Not available
Not available
Weight with stand
5.2kg(11.5 lb)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Weight with Stand 5.2 kg.
8.5kg(18.7 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 net with stand and without packaging, independently UK and original U.S. rounding.
Weight without stand
3.5kg(7.7 lb)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Weight without Stand 3.5 kg.
5.7kg(12.6 lb)3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 net body without stand/packaging, independently UK.
Box dimensions
Width721Height159Depth481mm(28.4 × 6.3 × 18.9 in)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Dimension in Shipping (W x H x D) 721 x 159 x 481 mm.
Width811Height166Depth491mm(31.9 × 6.5 × 19.3 in)5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact shipping W x H x D table, matching original Japanese base model. Flat-packed box orientation retained.
Box weight
7.1kg(15.7 lb)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Weight in Shipping 7.1 kg.
11.9kg(26.2 lb)5Maker product pagelg.com/uk/monitors/gaming-monitor/27gm950b-bRead 5 October 2026Own exact shipping 11.9 kg, above complete 8.5 kg product. U.S. original 26.2 lb agrees within source rounding.

Power

7 of 13 differ
Power supply
External adapter2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Power Type: External Power (Adapter).
External adapter1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own external AC/DC adapter, independently manual.
Adapter rating
Not available
270W3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 23 two adapter options each 20 V x 13.5 A output, exactly 270 W. Device rating 20 V x 12 A, 240 W is separate and is not maximum operating consumption.
Input voltage
100-240 V AC, 50/60 Hz2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026AC Input 100~240V (50/60Hz). DC Output 19V / 3.42A.
100-240 V AC, 50/60 Hz1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own mains input, matching adapter input. Not monitor 20 V DC or USB PD.
Power use (typical)
Not available
Not available
Power use (max)
28W2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Power Consumption (Max.) 28W. The EU sheet lists 28.5 W on-mode power in HDR, which is slightly above this figure.
Not available
Power use SDR (EU label)
18.1W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026On mode power demand SDR 18.1 W, class E.
41.6W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 4, EU default 60 Hz on-mode SDR demand. Not native 165 Hz or typical gaming power.
Power use HDR (EU label)
28.5W5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026On mode power demand HDR 28.5 W, class G.
53.5W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 6 HDR on-mode demand.
Standby power
0.5W2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Less than 0.5W in sleep mode. The exact 0.5 W comes from the EU sheet.5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026Standby 0.5 W.
0.5W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 8. Current maker specification is less than 0.5 W. No network standby value invented.
Off-mode power
0.3W2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Less than 0.3W DC off. The exact 0.3 W comes from the EU sheet.5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026Off mode 0.3 W.
0.3W6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 7. Current U.S./UK maker less-than 0.3 W qualifier is separate. Early U.S. sheet less-than 0.5 W is less precise.
EU energy class SDR
E5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026Item 3 class E.
G6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 3 and visually read label.
EU energy class HDR
G5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026Item 5 class G.
G6EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact English PIS PDF page 2 row 5 and visually read label.
Energy per 1000 h SDR
18kWh6EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2756856.pdfRead 14 October 2026The EU label prints 18 kWh/1000h under class E. Read from the rendered label.
42kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact visually read EU label integer 42. Not computed from 41.6 W.
Energy per 1000 h HDR
29kWh6EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2756856.pdfRead 14 October 2026The EU label prints 29 kWh/1000h in the HDR box under class G.
54kWh7EU energy label (EPREL)lg.com/uk/lgecs.downloadFile.ldwfRead 5 October 2026Exact visually read EU label integer 54, separate from SDR.

Certifications

2 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Not available
TÜV Rheinland Anti-blooming Hyper Mini LED8Press releaselg.com/us/press-release/ultragear-gx9-gm9-press-release.pdfRead 5 October 2026Own exact GM9 paragraph PDF page 2 expressly TÜV Rheinland-certified Anti-blooming Hyper Mini LED. Certificate number unstated. Not a low-blue-light or flicker certificate.
Low blue light
Software2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Reader Mode is a selectable picture mode.
Software3Owner's manualgscs-b2c.lge.com/downloadFileRead 5 October 2026Printed page 18 Reader SDR picture mode, independently Japanese blue-light-reduction feature. No hardware low-blue-light certification is proved.
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
CE, KC (for Rep. of Korea), UL (cUL)2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026STANDARD section: CE, KC (for Rep. of Korea), UL (cUL).
Not available

In the box

2 of 2 differ
In the box
DisplayPort cable (version 2.1), AC/DC adapter, Power cord2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Canada Accessory list: Adapter YES, Display Port YES (ver 2.1), Power Cord depends on country. The UK table also lists an HDMI cable (black, 1.8 m) and PurePC found an HDMI cable in its Polish box. Canada does not list one, so only the common items are stored.
Monitor, Stand, AC/DC adapter, Power cable, HDMI cable, DisplayPort cable, USB-C cable1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. three cable rows and manual stand/power assembly. Regional cable lengths, report, remote and paper extras are unstated.
Cables included
ALG UltraGear 25G590B
Type
DisplayPort cable (version 2.1)
Source2Maker product pagelg.com/ca_en/monitors/gaming/25g590b-b-ausRead 14 October 2026Display Port cable (ver 2.1) is listed in Canada, the UK and found by PurePC. Count is not stated.
BLG UltraGear evo GM9 27GM950B
Not available

Warranty

0 of 2 differ
Manufacturer warranty (source market)
1year5EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2756856_EN.pdfRead 14 October 2026Item 23: minimum duration of the general guarantee offered by the supplier is 1 year. This is the EU sheet figure. Retailers in some countries state 2 years, and other regions differ.
1year1Maker product pagelg.com/us/monitors/lg-27gm950b-b-gaming-monitorRead 5 October 2026Exact U.S. AllInfo. Own U.S. one-year parts and labor. Original U.S. sheet and current manual warranty agree. Japanese three-year warranty and optional two-year Premium Care extension are separate.
Dead pixel policy
Not available
Not available

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