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Dell 14 Premium DA14250 Core Ultra 7 255H OLED

DellCreator laptop

14 Premium DA14250 Core Ultra 7 255H OLED

Released June 2025.6Press releasedell.com/ja-jp/blog/dell-14-premium-dell-16-premiumRead 7 October 2026June 26, 2025 maker release explicitly Dell 14 Premium went on sale today. Dell 16 Premium was only preorder on that day and is excluded. Month 2025-06 records marketed DA14250 family first retail, not the exact selected US SKU first-sale day. Last checked 16 October 2026.

Screen size
14.5in
Processor
Intel Core Ultra 7 255H
GPU
Intel Arc 140T
Weight (published)
1.72kg

124 of 179 fields known.

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At a glance

Ports

  • 3 USB-C Thunderbolt 4 / USB4 / DisplayPort 2.1
  • microSD card microSDXC v7.1 UHS-I/UHS-II
  • 3.5 mm audio

All specs

SourceCalculated

General

Series
Dell Premium4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026
Model numbers
DA14250, LDA14250-7667SLV-PUS1Maker product pagedell.com/support/product-details/en-us/product/dell-da14250-laptopRead 5 October 20262Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026Exact original US Best Buy SKU 6636560, LDA 14250-7667 SLV-PUS: 255 H, 32 GB LPDDR 5 x, 1 TB SSD, Intel Arc integrated graphics, 3.2 K OLED touch 120 Hz, Platinum and Home. Historical page says no longer available new. No current stock claim. Upgraded marketplace LDA 14250-Upgraded and RTX 4050 variants excluded.
GTIN / EAN
88411667066710Certification listepeat.net/product-details/6878eb008595407e8111c435e7f5a308Read 7 October 2026Official registry Universal Product Codes cell 884116670667. Exact US MicroCenter model LDA14250-7667SLV-PUS product table independently UPC 884116670667, 255H/32GB/1TB/Arc/OLED/Home. UPC retained 12 digits, not guessed EAN leading zero.
Announced
Not available
Status
Not available
Predecessor
Not available
Successor
Dell XPS 14 (2026) DA1426014Reviewtomsguide.com/computing/laptops/dell-xps-14-2026-reviewRead 7 October 2026Actual 2026 XPS 14 review explicitly calls Dell 14 Premium its predecessor. It distinguishes new 14.0-inch Panther Lake model from previous 14.5-inch 255H Premium. Existing same-type dell-xps-14-da14260 JSON and its exact maker page identify the 2026 model. Only model relationship retained. No successor measurements or hardware specifications transferred.
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
US2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Colours
Platinum2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Segment
Creator4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original model brochure opens with creating on the go and calls the OLED display A creator's canvas. Creator segment maps that explicitly stated intended use, without borrowing discrete-GPU performance.
Form factor
Clamshell3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Original complete laptop views identify conventional clamshell, matching retailer 2-in-1=false.

Chassis

Front and side, drawn to scale.

Dimensions
Width320Depth215.97Thickness (min)6.7Thickness (max)18.02mm(12.6 × 8.5 × 0.3 to 0.7 in)3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 2 p. 14: width 320 mm, depth 215.97 mm, front 6.70 mm and rear 18.02 mm. Schema permits maker front/rear points as minimum/maximum thickness. Brochure overall height 18.0 mm is rounded and not substituted.
Weight (published)
1.72kg(3.8 lb)3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 2 gives OLED minimum 1.72 kg and maximum 1.83 kg. Stored published OLED minimum agrees with original brochure and current exact retailer 3.79 lb. Configuration and manufacturing variability apply. This is a published minimum, not a measured exact-SKU weight.
Lid material
Aluminium4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original CNC-aluminum construction row and sustainability top-cover 75% recycled-aluminum statement support aluminum lid. Bottom material is not independently identified.
Bottom material
Not available
Max hinge angle
Not available
MIL-STD-810 testing (claimed)
Not available

Display

Screen size
14.5in(36.8 cm)2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Native resolution
3200 × 2000px2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Pixel density
260.2ppi
Panel type
OLED3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 22 p. 26 selected 3.2K panel explicitly AMOLED. Its diagonal 14.50 mm and transposed active-area labels are editorial errors, excluded in favor of literal 14.5-inch panel title and exact retailer.
Backlight
None (self-emissive)3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026AMOLED pixel-emissive topology, not an LCD backlight.
Dimming zones
Not available
Panel part number
Samsung 145FB028Reviewnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Actual 255H/32GB/1TB/Arc140T/3.2K OLED unit Display specification Samsung 145FB02. Exact display size/resolution/rate match. Sample panel identifier, supplier/manufacturing variation possible. Review OS is Windows 11 Pro, represented retail Home, reported explicitly. No XPS14 previous-generation panel measurement borrowed.
Screen surface
Glossy8Reviewnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Exact current review Display specification glossy yes for Samsung 145FB02 OLED touch. Maker anti-reflective coating is not a matte substrate. Same selected panel configuration.
Touchscreen
Yes2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Stylus
Not available
Refresh rate modes
Width (px)Height (px)Maximum operating refresh (Hz)VRR
32002000120Yes
Source3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 22 selected 3200 x 2000 OLED explicitly 48 to 120 Hz VRR. Fixed modes and adaptive-sync certificates are not inferred.
Max refresh rate
120Hz
Adaptive sync
Not available
Gray-to-gray response time (claimed)
Not available
Native panel colour depth
Not available
Brightness (SDR, claimed)
400nits3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 22 explicitly luminance typical 400 nits for selected OLED. No HDR peak or reviewer measurement is inferred.
Peak brightness (SDR outdoors, claimed)
Not available
Sustained brightness (HDR, claimed)
Not available
Peak brightness (HDR, claimed)
Not available
sRGB coverage (claimed)
Not available
DCI-P3 coverage (claimed)
100%3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 22 selected OLED explicitly 100% DCI-P3. LCD 100% sRGB is excluded.
Adobe RGB coverage (claimed)
Not available
HDR certification
DisplayHDR 5004Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original technical display row selected 14.5-inch 3.2K OLED says VESA DisplayHDR 500 literally. Stored plain 500, not True Black 500 inferred from OLED technology. Dolby Vision is separate.
Factory calibrated
Not available
Second display
Not available

Processor

Processor
Intel Core Ultra 7 255H2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Processor brand
Intel2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Core configuration
Core typeCountBase clock (GHz)Max clock (GHz)
Performance625.1
Efficiency81.54.4
Low-power efficiency20.72.5
Source5Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 5 October 2026Exact 255H: six performance cores 2.0/5.1 GHz, eight efficiency cores 1.5/4.4 GHz and two low-power cores 0.7/2.5 GHz, 16 threads. Generic 28/115 W powers are not laptop configured limits.
CPU cores
16
Cores labelled performance
6
Cores labelled efficiency
10
Threads
165Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 5 October 2026
Max boost clock
5.1GHz
L3 cache
24MB5Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 5 October 2026
Process
3nm9Spec databasenotebookcheck.net/Intel-Core-Ultra-7-255H-Processor-Benchmarks-and-Specs.944139.0.htmlRead 7 October 2026Exact Intel 255H component description explicitly CPU tile N3B (3 nm). Own Intel ARK CPU Lithography TSMC N3B corroborates. Only CPU compute tile, not 5 nm GPU, 6 nm SoC/I/O or 22 nm base packaging.15Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 7 October 2026Exact public Intel 255H processor table names CPU Lithography TSMC N3B. Numeric 3 nm compute-tile mapping is expressly stated by the exact Notebookcheck component article. GPU N5P, SoC/I/O N6 and base tile 22 nm are not mixed. Notebookcheck external ARK link redirects to an unrelated 185H and is not used, this independently found exact 255H primary page supplies corroboration.
Sustained CPU power (configured)
43W8Reviewnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Review processor specification header explicitly PL1 / Sustained configured limit 43 W. Observed Prime95 steady 42 W is stored separately. Generic Intel 28 W base is not laptop setting.
Peak CPU power (configured)
64W8Reviewnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Review processor header explicitly PL2 / Short Burst configured limit 64 W. Observed startup 60 W and generic Intel 115 W are different. This limit belongs to the proved Performance-mode reference.
Combined CPU and GPU power
Not available
NPU performance
13TOPS5Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 5 October 2026NPU-only INT8 peak 13 TOPS, excluding combined 96 TOPS.

Graphics

Discrete GPU
No2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026Exact selected SKU lists integrated Intel Arc, not optional RTX 4050. Matching maker integrated-board hardware applies.
GPU
Not available
GPU brand
Not available
VRAM
Not available
Max GPU power (TGP)
Not available
Dynamic Boost
Not available
GPU boost clock
Not available
GPU switching
Not available
Integrated GPU
Intel Arc 140T5Maker product pageintel.com/content/www/us/en/products/sku/241751/intel-core-ultra-7-processor-255h-24m-cache-up-to-5-10-ghz/specifications.htmlRead 5 October 2026

Memory

Installed RAM
32GB2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
RAM type
LPDDR5X2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
RAM speed
6,400MT/s3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 5 p. 16 explicitly integrated-board 6400 MT/s, discrete RTX 4050 board 8400 MT/s. Exact retailer incorrectly labels 6400 MHz, so maker 6400 MT/s controls.
Memory channels
23Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 5 explicitly dual-channel onboard memory. Chip packages not SO-DIMM slots.
RAM upgrade
Soldered3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 5 integrated on system board, not upgradeable.
Memory slots
Not available
RAM slots
Not available
Free RAM slots
Not available
Maximum supported RAM
64GB3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 5 supports maximum 64 GB purchase configuration. Installed 32 GB is soldered. Intel generic 128 GB maximum and retailer upgradeable 64 GB wording do not establish customer upgrades.

Storage

Installed storage
1TB2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026Exact retailer 1000 GB/1 TB. Unqualified seller 20-hour battery maximum belongs to another configuration and is excluded.
Storage type
NVMe SSD3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Installed drive PCIe generation
43Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Storage slots
Form factorInterfaceCountOccupied
M.2 2280PCIe NVMe1Yes
Source3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 7 p. 17 explicitly one SSD connector accepts M.2 2230 or M.2 2280, represented once using longest supported 2280. Table 10 p. 18 installed 1 TB Gen4x4 NVMe is documented 2230, which is not the longest connector length. Maximum connector PCIe generation is not inferred.
M.2 slots
1
Free storage slots
0
Maximum slot PCIe generation
Not available

Ports

Ports
TypeVersionCountSideMaximum data rate (Gbps)Thunderbolt or USB4DP Alt Mode
USB-CThunderbolt 4 / USB4 / DisplayPort 2.12Left40Thunderbolt 4Yes
USB-CThunderbolt 4 / USB4 / DisplayPort 2.11Right40Thunderbolt 4Yes
microSD cardmicroSDXC v7.1 UHS-I/UHS-II1RightNot availableNot availableNot available
3.5 mm audioNot available1RightNot availableNot availableNot available
Source3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Complete right/left views pp. 5–6 and table 6 pp. 16–17: two TB4 left, one TB4 plus microSDXC and headset right. Each TB4 explicitly USB4, DP2.1 and 40 Gbps. PD3.1 and supplied 60 W do not establish maximum per-port charging input. USB-A or HDMI connectors are not inferred from adapter compatibility.
USB-C ports
3
Thunderbolt
Yes
Highest HDMI version
Not available
Card reader
Yes
Ethernet speed
Not available
Maximum USB-C charging input
Not available

Wireless

Wi-Fi
Wi-Fi 73Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Wi-Fi bands
2.4 GHz, 5 GHz, 6 GHz3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Wi-Fi module
Intel Killer Wi-Fi 7 (BE201)3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 8 p. 17 explicitly Intel Killer Wi-Fi 7 (BE201), Bluetooth 5.4 and tri-band 2.4/5/6 GHz. The 1750i suffix is not established by this original manual. OS, drivers and regional availability apply.
Bluetooth
5.43Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Cellular
No11Retailer pagemicrocenter.com/support/698673/dell-14-premium-da14250-oled-145-laptop-computer-platinumRead 7 October 2026Exact Communications Connectivity cell WiFi Only. Original BestBuy exact SKU Network Connectivity None also explicitly defines cellular network usage. No SIM/WWAN feature inferred from WLAN card.

Keyboard and touchpad

Keyboard layouts
QWERTY3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 12 explicitly QWERTY. Regional key legends and other layouts are not inferred.
Key switches
Not available
Keyboard backlight
Not available
Numpad
No3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Complete top-view figure 3 p. 7 shows no dedicated physical numeric keypad.
Key travel
1mm4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original brochure Inputs technical row explicitly 1.0 mm key travel for its full-size zero-lattice keyboard. Backlight color is not specified.
Pointing stick
No3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Original p. 7 complete top-view figure 3 shows the keyboard and glass haptic touchpad with no separate stick device. Reviewed current device layout agrees. No touchpad counted as a stick.
Touchpad size
Width149Height74mm(5.9 × 2.9 in)3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 17 p. 22 explicitly 149 mm horizontal and 74 mm vertical. Haptics corroborated separately by brochure.
Touchpad mechanism
Haptic4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original inputs row explicitly seamless glass haptic touchpad.

Camera and audio

Webcam
1920 x 1080 at 30 fps3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 16 p. 21 explicitly 1920 x 1080 at 30 fps. Separate IR 640 x 360 at 15 fps is not substituted for RGB resolution.
IR face login
Yes3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Camera and fingerprint security sections identify Windows Hello-compatible IR camera.
Webcam privacy
Not available
Built-in speaker drivers
43Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 9 p. 18 explicitly four drivers, two tweeters and two woofers.
Total speaker power
8W3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 9 average 2 W + 2 W tweeters and 2 W + 2 W woofers totals 8 W. Peak 10 W is not substituted.
Audio features
Waves MaxxAudio Pro, Waves Nx 3D, Dolby Atmos, IntelliGo noise reduction3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 9 p. 18 explicitly IntelliGo noise reduction with dual digital-array microphones. Original brochure separately supports Dolby Atmos and Waves processing.4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original multimedia technical row explicitly Waves MaxxAudio Pro, Waves Nx 3D and Dolby Atmos. Its IntelliGo High Fidelity Audio branding is not used to infer noise reduction, which the manual states explicitly.
Microphones
23Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 9 dual digital-array microphones.

Battery and power

Battery energy
70Wh3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 21 p. 24 nominal six-cell 70 Wh agrees with original brochure. Later maker retail 69.5 Wh is not independently identified as rated/minimum and is not mixed into this original nominal claim.
Claimed battery life
Use caseHours (h)
Video streaming11
Source4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Exact configuration 3: 255H, 32 GB, 1 TB, Intel Arc and 3.2K OLED. Up to 11 hours Netflix 1080p via Windows 11 app, Dell June 2025 test, 150 nits (40%) and wireless enabled. Maker maximum claim, not reviewer measurement. Different LCD 20-hour and RTX 4050 configurations are excluded.
Adapter rated output
60W3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Tables 18/19 pp. 22–23 explicitly 60 W USB-C adapter for integrated graphics. 100 W discrete-GPU adapter is excluded. Recommended adapter output is separate from accepted charging-input maximum.
Laptop charging connector
USB-C3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026
Charge 0 to 50 % (claimed)
Not available

Cooling

Fans
27Owner's manualassets.grandandtoy.com/assets/User-Manual/10/87/1087298242.pdfRead 7 October 2026Original August 2025 A03 service manual pp. 33-35, integrated-graphics heat-sink removal/install steps explicitly identify left fan JFAN1 and right fan JFAN2. Two installed physical fans. Discrete-GPU assembly is a separate section.
Vapor chamber
Not available
Liquid metal
None7Owner's manualassets.grandandtoy.com/assets/User-Manual/10/87/1087298242.pdfRead 7 October 2026Same integrated-graphics removal section explicitly refers to existing thermal grease on heat-transfer areas. Installation specifies supplied thermal grease after board or heat-sink replacement. Ordinary grease, not liquid metal. No inference about a vapor chamber.
Power modes
Name
Optimized
Performance
Cool
Quiet
Source4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Personalized performance section names four modes optimized, performance, cool and quiet in context highest performance or maximum battery life. No configured CPU/GPU watts published for these rows. Service-manual BIOS Thermal Management says Optimized is default.

Security

Fingerprint
Power button3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 23 explicitly fingerprint reader in power button.
TPM
2.04Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original security technical row explicitly TPM 2.0. Firmware versus discrete implementation is not inferred.
Remote management
Not available
Security lock slot
No3Owner's manualassets.grandandtoy.com/assets/Additional-pdf2/10/87/1087298242.pdfRead 7 October 2026Table 6 explicitly security-cable slot Not supported.

Software

Operating system
Windows 11 Home2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
OS family
Windows2Retailer pagebestbuy.com/product/dell-premium-14-oled-3-2k-touch-screen-laptop-intel-core-ultra-7-255h-with-32gb-memory-1tb-ssd-platinum/6636560Read 5 October 2026
Security updates until
Not available

Measured display

Brightness (measured, centre)
349.3nits12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display nine-point SDR full-white grid center value and explicit Center on Battery cell: 349.3 cd/m2. X-Rite i1Pro 3 identified for brightness block. Not 356.1 maximum or 352.1 grid mean. Window duration unstated.
Brightness (measured, average)
352.1nits12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display full-white nine-point SDR grid Average: 352.1 cd/m2. X-Rite i1Pro 3. Grid max 356.1 and center 349.3 are separate. Not a maker typical claim. Duration unstated.
Contrast ratio (measured)
Not available
HDR peak brightness (measured)
595nits12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display body explicitly maximum brightness 595 nits when HDR enabled. HDR window/APL and sustained duration not stated. This is the observed maximum, not inferred from VESA certification or ordinary SDR.
sRGB coverage (measured)
100%12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display gamut table 100% sRGB (Argyll 3D). Actual published gamut method retained. Display P3 99.3% is not imported into DCI-P3 field, and Adobe RGB 87.2 has no measured Adobe RGB field.
DCI-P3 coverage (measured)
Not available
Colour accuracy (measured Delta E)
3.4712Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display table and actual full-size before-calibration ColorChecker chart average 3.47. Chart explicitly dE Formula 2000, SDR Toolkit, X-Rite i1Pro 2 and P3 caption. Before calibration, not calibrated 1.3. Picture mode unnamed. Chart instrument 2 differs from brightness block 3, both scopes retained.13Measurementnotebookcheck.net/fileadmin/_processed_/1/a/csm_calcolorpre_2cc431b5e2.pngRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display table and actual full-size before-calibration ColorChecker chart average 3.47. Chart explicitly dE Formula 2000, SDR Toolkit, X-Rite i1Pro 2 and P3 caption. Before calibration, not calibrated 1.3. Picture mode unnamed. Chart instrument 2 differs from brightness block 3, both scopes retained. Actual full-size graph inspected. It shows Avg dE2000 3.47, Max dE2000 7.38, and the dE Formula 2000 selector.
PWM flicker found
Yes12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display reviewer explicitly Screen flickering/PWM detected. Tested plots cover 0/25/50/75/100 percent brightness, but exact detection cutoff not explicitly stated. No universal frequency sensitivity guarantee.
PWM frequency (measured)
475Hz12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Reviewer Screen flickering/PWM table 475 Hz, amplitude 23%. Frequency actually measured, not panel refresh. Detection threshold and exact waveform method not stated in text.
PWM at or below brightness
Not available
Response black to white (measured)
0.96ms12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display black-to-white combined rise/fall 0.96 ms, with 0.45 rise and 0.51 fall. Not generic claimed 1 ms and not fastest one-direction time. Instrument for timing not stated.
Response grey to grey (measured)
0.72ms12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Picture and power mode are not stated for display tests. Display 50% grey to 80% grey combined rise/fall 0.72 ms, 0.37 rise plus 0.35 fall. Transition levels explicit. Instrument not stated.

Measured performance

Cinebench 2024 single-core
Not available
Cinebench 2024 multi-core
Not available
Geekbench 6 single-core
2,712points12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Geekbench 6.7 Single-Core exact Dell 14 Premium / 255H row 2712 points. All required laptop profile evidence is proved. Run count/duration unstated.
Geekbench 6 multi-core
14,719points12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Geekbench 6.7 Multi-Core exact Dell 14 Premium / 255H row 14719 points. No other CPU or discrete-GPU score borrowed. Run count/duration unstated.
3DMark Time Spy graphics
3,695points12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. 3DMark 2560x1440 Time Spy Graphics exact Dell 14 Premium Arc 140T / 255H row 3695 points. Graphics score, not total or CPU score. 3DMark build/run duration unstated.
3DMark Steel Nomad
Not available
SSD sequential read (measured)
5,910MB/s12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Actual Kioxia BG6 KBG6AZNV1T02 1 TB drive, CrystalDiskMark 5.2/6 Read Seq Q32T1: 5910 MB/s. Sequential queue depth 32, one thread. Drive model is test-specific, not a guaranteed vendor for every retail unit. CDM 8, AS-SSD and DiskSpd results not mixed.
Game frame rates
GameWidth (px)Height (px)PresetUpscalingAverage FPS
Cyberpunk 207719201080UltraFSR off23.9
Source12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Cyberpunk 2077 benchmark exact 1920x1080 Ultra Preset (FSR off), Dell 14 Premium / 255H/Arc 140T average 23.9 fps. Source minimum 20.4 and P1=19.3 are not imported without explicit percentile-method definition. Ray tracing and frame generation not stated, so corresponding boolean is omitted.

Measured noise and temperature

Fan noise per mode
Power modeLoadNoise (dB(A))
PerformanceIdle24
PerformanceMedium load39
PerformanceGaming43
PerformanceMax load44.9
Source12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Noise table idle median 24 dBA (range 23.2-24.7), Load Average 39, Cyberpunk 2077 Ultra 43, Load Maximum 44.9. Earthworks M23R / Arta at 15 cm, ambient 23 dBA. Plot caption identifies 3DMark 06, Cyberpunk 2077 and Prime95+FurMark workloads. Durations unstated. Single rows preserve actual method and highest-mode setting.
Max fan noise
44.9dB(A)
Fan noise while gaming
43dB(A)
Top surface under load
33°C12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Maximum load upper surface 33 C. Prime95+FurMark surface-map caption, ambient 20 C, Fluke 62 Mini IR. Exact stress duration not stated. Mean 30 C is separate.
Bottom surface under load
33.6°C12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Maximum load bottom surface 33.6 C, same combined Prime95+FurMark caption, ambient 20 C, Fluke 62 Mini IR. Not average 31.7 C.
Palm rest under load
29°C12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Temperature paragraph explicitly palmrests and touchpad maximum 29 C. Same maximum-load surface measurement, ambient 20 C, Fluke 62 Mini IR. It is the combined palmrest/touchpad maximum, not an average.
CPU temperature in stress test
85°C12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Prime95 CPU-only steady state average 85 C after about one minute as package drops from initial 104 C. Startup peak 104 is not stored as sustained temperature. Total test duration unstated.
CPU clock in stress test
2.5GHz12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Same Prime95 CPU-only test average clock settles 2.5 GHz after about one minute, initial 3 GHz separate. Core-subset averaging method unstated. Not nominal maker CPU base/turbo.
GPU temperature while gaming
Not available

Measured battery and power

Battery runtime per test
TestHours (h)
Wi-Fi browsing10.8
Source12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Battery Runtime table actual WiFi Websurfing 10 h 48 min, converted 10.8 h. Browser version, brightness, battery-specific power profile and exact workload cycle not stated. General review method uses Performance, but battery-specific override unknown, so brightness/power_mode row cells omitted. Tested nominal 69.5 Wh label, maker original 70 Wh nominal retained separately. Comparison table labels the workload WiFi v1.3. Browser and battery-specific brightness/profile remain unpublished.
Wi-Fi browsing runtime
10.8h
Video runtime
Not available
Full charge time (measured)
Not available
Power draw idle
4.89W12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Power-consumption chart actual Idle 150 cd/m2 average 4.89 W (4.51-6 range), Metrahit Energy. Explicit 150 nits, not table 6.1 median across unspecified brightness. Whole-unit measured power, measurement point not explicit.
Power draw gaming
50.7W12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Power chart Cyberpunk 2077 FHD Ultra no FSR, 150 cd/m2 average 50.7 W (41.5-58 range), Metrahit Energy. Internal display 150 nits. External-monitor mean 46.5 is a different scenario and not substituted.
Power draw max
62.7W12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Power table Load maximum 62.7 W, Metrahit Energy. Prime95 startup spike 63 W is rounded narrative. maximum 62.7 retained. Not sustained CPU 42 W or adapter rated 60 W.
Sustained CPU power (measured)
42W12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Prime95 CPU-only observed package power 42 W after about one minute. Initial package 60 W and header configured PL1 = 43 W are separate. This is observed runtime power, not configured limit.
GPU power while gaming (measured)
Not available
Weight (measured)
1.714kg(3.8 lb)12Measurementnotebookcheck.net/Dell-14-Premium-laptop-review-An-XPS-14-in-all-but-name.1086446.0.htmlRead 7 October 2026Review unit (255H, 32 GB, 1 TB, Arc 140T, 3.2K OLED touch at 120 Hz) matches this configuration. It ran Windows 11 Pro and retail is Home. Dell Optimizer Performance mode was set before tests. Actual review specifications reports test-unit mass 1.714 kg and adapter 299 g separately. Only laptop 1.714 stored. Scale model and weighing method not published. Maker OLED minimum 1.72 kg stays in claimed weight field.

Certifications

Intel Evo
Yes6Press releasedell.com/ja-jp/blog/dell-14-premium-dell-16-premiumRead 7 October 2026Maker June 26, 2025 launch exact DA14250 paragraph names Intel EVO+NPU and Core Ultra 7 200H, integrated graphics with optional RTX 4050. This is maker model-level Evo claim, not generic CPU eligibility. NPU-only 13 TOPS does not establish Copilot+.
Copilot+ PC
Not available
Colour certifications
Not available
ENERGY STAR
Yes4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original brochure explicitly Energy Star 9.0. Country-dependent EPEAT Gold is omitted.
EPEAT
Gold10Certification listepeat.net/product-details/6878eb008595407e8111c435e7f5a308Read 7 October 2026Official EPEAT registry exact Dell 14 Premium DA14250, United States, active Gold, registration 2025-10-12, UPC 884116670667. ENERGY STAR power-management/power-supply exception retained. Exact MicroCenter model LDA14250-7667SLV-PUS binds this UPC to represented hardware. No other country rating inherited.
Other certifications
TPM 2.0 FIPS 140-2 certification4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original Security row explicitly identifies TPM 2.0 FIPS 140-2 Certified, retained as a component certification rather than whole-laptop FIPS. Adjacent TCG Certified text runs directly into Windows Hello fingerprint-reader/camera wording without a separator, so TCG component binding is ambiguous and that list item is omitted. Eyesafe technology wording is not promoted to an unproved certificate.

In the box

In the box
60 W USB-C power adapter, Power cord11Retailer pagemicrocenter.com/support/698673/dell-14-premium-da14250-oled-145-laptop-computer-platinumRead 7 October 2026Exact retailer What's in the Box cell laptop and Power Cord. Power Supply cell 60 W USB-C adapter and original maker brochure ships with battery adapter. Combined documented contents. Software trials excluded. Not an assertion that no paper documents exist. The product itself is excluded because field help counts accessories.
Power adapter included
Yes4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original brochure explicitly ships with battery adapter, and technical adapter row pairs 60 W USB-C with Intel Arc. Optional accessories are not inferred.

Warranty

Manufacturer warranty (source market)
1year4Maker spec sheet (PDF)assets.grandandtoy.com/assets/Manufacturer-Brochure/10/87/1087298242.pdfRead 7 October 2026Original Warranty and Service row standard one year Dell Care Plus. Exact US retail SKU independently states one-year limited manufacturer warranty for parts and labor. Paid extensions up to four years excluded.
Warranty service
On-site11Retailer pagemicrocenter.com/support/698673/dell-14-premium-da14250-oled-145-laptop-computer-platinumRead 7 October 2026Exact model table LDA14250-7667SLV-PUS. Parts and Labor each 1 Year Limited / Onsite. Manufacturer/vendor warranty, not retailer 15-day return. Basic US retail on-site scope preserved rather than assuming generic CarePlus features.

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Sources

We read 15 sources for this laptop. The numbers match the markers in the sheet.

  1. Read 5 October 2026Backs 2 fields
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