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  3. m18 RTX 4090 (2023) vs ROG Strix Scar 18 G835 RTX 5080 (2025)

Alienware m18 RTX 4090 (2023) vs Asus ROG Strix Scar 18 G835 RTX 5080 (2025)

What m18 RTX 4090 (2023) does better (10) and where ROG Strix Scar 18 G835 RTX 5080 (2025) wins (15) — every spec side by side.

Alienware m18 RTX 4090 (2023)
Alienware · 2023m18 RTX 4090 (2023)
7.2Score
10 advantages
vs
Asus ROG Strix Scar 18 G835 RTX 5080 (2025)
Asus · 2025ROG Strix Scar 18 G835 RTX 5080 (2025)
7.6Score
15 advantages≈ $5,500
Higher score
8.6Graphics7.6
5.0Overall performance8.2
6.0Display8.5
7.7Memory & storage4.2
4.0Battery & portability2.7
6.7Features & cooling7.7
Dimensions

Size comparison

m18 RTX 4090 (2023)ROG Strix Scar 18 G835 RTX 5080 (2025)
410.3 × 319.926.7399 × 29832
m18 RTX 4090 (2023)ROG Strix Scar 18 G835 RTX 5080 (2025)Difference
Depth319.9 mm298 mm+21.9 mm
Width410.3 mm399 mm+11.3 mm
Thickness26.7 mm32 mm−5.3 mm
Weight4.2 kg3.3 kg+0.9 kg

Drawn to the same scale from the official dimensions (front and side).

Why is m18 RTX 4090 (2023) better than ROG Strix Scar 18 G835 RTX 5080 (2025)?

  1. Refresh rate480 Hz vs 240 Hz2×
  2. SSD (up to)8,192 GB vs 2,000 GB4.1×
  3. Battery capacity97 Wh vs 90 Wh+8%
  4. GPU compute (FP32)45.2 TFLOPS vs 42 TFLOPS+8%
  5. GPU shader cores9,728 vs 7,680+27%
  6. M.2 SSD slots4 vs 22×
  7. SD card readerYes · ROG Strix Scar 18 G835 RTX 5080 (2025): No
  8. Thickness26.7 mm vs 32 mm+20%
  9. USB-C ports3 vs 2+50%
  10. Cooling fans4 vs 3+33%

Why is ROG Strix Scar 18 G835 RTX 5080 (2025) better than m18 RTX 4090 (2023)?

  1. Brightness300 nits vs 1,200 nits4×
  2. Geekbench 6 multi-core14,772 vs 22,256+51%
  3. Resolution classFull HD (1080p/1200p) vs QHD (1440p/1600p)
  4. Cinebench 2024 multi-core1,124 vs 2,116+88%
  5. Weight4.23 kg vs 3.3 kg+28%
  6. CPU cores14 vs 24+71%
  7. RAM (base)16 GB vs 64 GB4×
  8. SSD (base)256 GB vs 2,000 GB7.8×
  9. Wi-Fi standardWi-Fi 6E vs Wi-Fi 7+8%
  10. Pixel density126 ppi vs 168 ppi+33%
  11. CPU threads20 vs 24+20%
  12. RAM speed4,800 MHz vs 5,600 MHz+17%
Specifications

Side by side

Alienware m18 RTX 4090 (2023)Alienware m18 RTX 4090 (2023)7.2
Asus ROG Strix Scar 18 G835 RTX 5080 (2025)Asus ROG Strix Scar 18 G835 RTX 5080 (2025)≈ $5,5007.6
Graphics
Graphics cardGeForce RTX 4090 LaptopGeForce RTX 5080 Laptop
GPU makerNVIDIANVIDIA
GPU power (TGP)175 W175 W
Video memory16 GB16 GB
Video memory typeGDDR6GDDR7
GPU shader cores9,7287,680
GPU compute (FP32)45.2 TFLOPS42 TFLOPS
3DMark Steel Nomad Light26,79027,180
Processor
ProcessorCore i7-13650HXCore Ultra 9 275HX
CPU makerIntelIntel
CPU cores1424
CPU threads2024
Max CPU clock4.9 GHz5.4 GHz
Processor optionsCore i7-13650HX, Core i7-13700HX, Ryzen 7 7745HX, Core i9-13900HX, Core i9-13980HX, Ryzen 9 7845HX, Ryzen 9 7945HXCore Ultra 9 275HX
Geekbench 6 multi-core14,77222,256
Geekbench 6 single-core2,8403,276
Cinebench 2024 multi-core1,1242,116
Display
Screen size18″18″
Resolution1920 × 12002560 × 1600
Resolution classFull HD (1080p/1200p)QHD (1440p/1600p)
Refresh rate480 Hz240 Hz
Panel typeIPSIPS
Brightness300 nits1,200 nits
sRGB coverage100%100%
Response time3 ms3 ms
DCI-P3 coverage100%100%
Pixel density126 ppi168 ppi
Aspect ratio16:1016:10
G-Sync / FreeSyncYesYes
Advanced OptimusNoNo
MUX switchYesYes
HDRYesYes
TouchscreenNoNo
Memory & storage
RAM (up to)64 GB64 GB
RAM (base)16 GB64 GB
RAM typeDDR5DDR5
RAM speed4,800 MHz5,600 MHz
Max. supported RAM64 GB64 GB
RAM slots22
Upgradable RAMYesYes
SSD (up to)8,192 GB2,000 GB
SSD (base)256 GB2,000 GB
M.2 SSD slots42
SSD interfacePCIe 4.0 x4PCIe 4.0 x4
Battery & power
Battery capacity97 Wh90 Wh
Power adapter330 W380 W
USB-C charging (Power Delivery)YesYes
USB-C charging power—100 W
Design & cooling
Weight4.23 kg3.3 kg
Thickness26.7 mm32 mm
Width410.3 mm399 mm
Depth319.9 mm298 mm
Body materialAluminiumAluminium, Plastic
ColoursBlack, GrayBlack
Cooling fans43
Vapor chamber coolingYesYes
Liquid metal (CPU)YesYes
Fan noise (max. load)56.7 dB53.7 dB
Ports & wireless
Thunderbolt / USB4Thunderbolt 4Thunderbolt 5
Thunderbolt or USB4YesYes
USB-C ports32
USB-A ports33
HDMIHDMI 2.1HDMI 2.1
HDMI 2.1YesYes
(Mini) DisplayPortYesNo
Ethernet—5 Gbit/s
Ethernet portYesYes
SD card readerYesNo
3.5 mm audio jackYesYes
Wi-Fi standardWi-Fi 6EWi-Fi 7
Bluetooth5.35.4
Keyboard & camera
Backlit keyboardYesYes
Numeric keypadYesYes
Key travel1.8 mm—
Webcam1,080p1,080p
IR camera (face login)YesYes
Fingerprint readerNoNo
Audio
Speakers2.04 speakers
Dolby AtmosYesYes

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