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Legion 9 18 G10 RTX 5080 (2025) vs Blade 18 RTX 4090 (2023)

Lenovo Legion 9 18 G10 RTX 5080 (2025) vs Razer Blade 18 RTX 4090 (2023)

What Legion 9 18 G10 RTX 5080 (2025) does better (20) and where Blade 18 RTX 4090 (2023) wins (9) — every spec side by side.

Lenovo · 2025Legion 9 18 G10 RTX 5080 (2025)

8.9Score

20 advantages≈ $6,600

Higher score

Razer · 2023Blade 18 RTX 4090 (2023)

8.2Score

9 advantages

7.2Graphics7.9

7.8Overall performance6.4

8.5Display6.3

5.9Memory & storage6.4

7.9Battery & portability8.6

9.0Features & cooling7.9

Dimensions

Size comparison

Legion 9 18 G10 RTX 5080 (2025)Blade 18 RTX 4090 (2023)

	Legion 9 18 G10 RTX 5080 (2025)	Blade 18 RTX 4090 (2023)	Difference
Depth	297 mm	260 mm	+37 mm
Width	403 mm	395 mm	+8 mm
Thickness	28 mm	19.9 mm	+8.1 mm
Weight	3.5 kg	2.8 kg	+0.8 kg

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

Why is Legion 9 18 G10 RTX 5080 (2025) better than Blade 18 RTX 4090 (2023)?

Battery capacity100 Wh vs 82 Wh+22%
Resolution class4K (2160p/2400p) vs QHD (1440p/1600p)
Geekbench 6 multi-core22,129 vs 17,946+23%
RAM (base)64 GB vs 16 GB4×
Max. supported RAM192 GB vs 64 GB3×
3DMark Steel Nomad Light26,314 vs 24,862+6%
Response time3 ms vs 6 ms2×
HDRYes · Blade 18 RTX 4090 (2023): No
M.2 SSD slots4 vs 22×
Liquid metal (CPU)Yes · Blade 18 RTX 4090 (2023): No
SSD (base)2,000 GB vs 1,024 GB+95%
Cinebench 2024 multi-core2,079 vs 1,837+13%

Why is Blade 18 RTX 4090 (2023) better than Legion 9 18 G10 RTX 5080 (2025)?

SSD (up to)2,000 GB vs 8,192 GB4.1×
Weight3.5 kg vs 2.75 kg+27%
GPU compute (FP32)42 TFLOPS vs 45.2 TFLOPS+8%
Thickness28 mm vs 19.9 mm+41%
GPU shader cores7,680 vs 9,728+27%
Dolby AtmosNo · Legion 9 18 G10 RTX 5080 (2025): Yes
CPU threads24 vs 32+33%
DCI-P3 coverage89% vs 100%+12%
Fan noise (max. load)56 dB vs 53.5 dB+5%

Specifications

Side by side

Only differences	Lenovo Legion 9 18 G10 RTX 5080 (2025)≈ $6,6008.9	Razer Blade 18 RTX 4090 (2023)8.2
Graphics
Graphics card	GeForce RTX 5080 Laptop	GeForce RTX 4090 Laptop
GPU maker	NVIDIA	NVIDIA
GPU power (TGP)	175 W	175 W
Video memory	16 GB	16 GB
Video memory type	GDDR7	GDDR6
GPU shader cores	7,680	9,728
GPU compute (FP32)	42 TFLOPS	45.2 TFLOPS
3DMark Steel Nomad Light	26,314	24,862
Processor
Processor	Core Ultra 9 275HX	Core i9-13900HX
CPU maker	Intel	Intel
CPU cores	24	24
CPU threads	24	32
Max CPU clock	5.4 GHz	5.4 GHz
Processor options	Core Ultra 9 275HX, Core Ultra 9 290HX Plus	Core i9-13900HX, Core i9-13950HX, Core i9-13980HX
Geekbench 6 multi-core	22,129	17,946
Geekbench 6 single-core	3,236	3,002
Cinebench 2024 multi-core	2,079	1,837
Display
Screen size	18″	18″
Resolution	3840 × 2400	2560 × 1600
Resolution class	4K (2160p/2400p)	QHD (1440p/1600p)
Refresh rate	240 Hz	240 Hz
Panel type	IPS	IPS
Brightness	540 nits	500 nits
sRGB coverage	100%	100%
Response time	3 ms	6 ms
DCI-P3 coverage	89%	100%
Pixel density	252 ppi	168 ppi
Aspect ratio	16:10	16:10
G-Sync / FreeSync	Yes	Yes
Advanced Optimus	No	No
MUX switch	Yes	Yes
HDR	Yes	No
Touchscreen	No	No
Memory & storage
RAM (up to)	64 GB	64 GB
RAM (base)	64 GB	16 GB
RAM type	DDR5	DDR5
RAM speed	5,600 MHz	5,600 MHz
Max. supported RAM	192 GB	64 GB
RAM slots	4	2
Upgradable RAM	Yes	Yes
SSD (up to)	2,000 GB	8,192 GB
SSD (base)	2,000 GB	1,024 GB
M.2 SSD slots	4	2
SSD interface	PCIe 5.0 x4	PCIe 4.0 x4
Battery & power
Battery capacity	100 Wh	82 Wh
Power adapter	400 W	330 W
USB-C charging (Power Delivery)	Yes	Yes
USB-C charging power	140 W	—
Design & cooling
Weight	3.5 kg	2.75 kg
Thickness	28 mm	19.9 mm
Width	403 mm	395 mm
Depth	297 mm	260 mm
Body material	Aluminium	Aluminium
Colours	Black	Black
Cooling fans	4	3
Vapor chamber cooling	Yes	Yes
Liquid metal (CPU)	Yes	No
Fan noise (max. load)	56 dB	53.5 dB
Ports & wireless
Thunderbolt / USB4	Thunderbolt 5	Thunderbolt 4
Thunderbolt or USB4	Yes	Yes
USB-C ports	3	2
USB-A ports	3	3
HDMI	HDMI 2.1	HDMI 2.1
HDMI 2.1	Yes	Yes
(Mini) DisplayPort	No	No
Ethernet	5 Gbit/s	—
Ethernet port	Yes	Yes
SD card reader	Yes	Yes
3.5 mm audio jack	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 6E
Bluetooth	5.4	5.2
Keyboard & camera
Backlit keyboard	Yes	Yes
Numeric keypad	Yes	No
Key travel	1.6 mm	1 mm
Webcam	1,440p	1,440p
IR camera (face login)	Yes	Yes
Fingerprint reader	No	No
Audio
Speakers	6 speakers	4.2
Dolby Atmos	No	Yes