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Legion 5 15 RTX 5070 (2025) vs Katana 15 B13 RTX 4070 (2023)

Lenovo Legion 5 15 RTX 5070 (2025) vs MSI Katana 15 B13 RTX 4070 (2023)

What Legion 5 15 RTX 5070 (2025) does better (21) and where Katana 15 B13 RTX 4070 (2023) wins (4) — every spec side by side.

Lenovo · 2025Legion 5 15 RTX 5070 (2025)

8.5Score

21 advantages≈ $2,050

Higher score

MSI · 2023Katana 15 B13 RTX 4070 (2023)

6.0Score

4 advantages≈ $2,150

7.6Graphics7.4

8.0Overall performance6.8

8.4Display2.3

4.4Memory & storage4.4

9.1Battery & portability3.9

7.2Features & cooling3.3

Dimensions

Size comparison

Legion 5 15 RTX 5070 (2025)Katana 15 B13 RTX 4070 (2023)

	Legion 5 15 RTX 5070 (2025)	Katana 15 B13 RTX 4070 (2023)	Difference
Depth	255.3 mm	259 mm	−3.7 mm
Width	344.9 mm	359 mm	−14.1 mm
Thickness	21.5 mm	25 mm	−3.5 mm
Weight	2.2 kg	2.2 kg	=

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

Why is Legion 5 15 RTX 5070 (2025) better than Katana 15 B13 RTX 4070 (2023)?

Battery capacity80 Wh vs 54 Wh+50%
Resolution classQHD (1440p/1600p) vs Full HD (1080p/1200p)
Brightness500 nits vs 250 nits2×
Thunderbolt or USB4Yes · Katana 15 B13 RTX 4070 (2023): No
GPU compute (FP32)26.2 TFLOPS vs 18.2 TFLOPS+44%
GPU power (TGP)115 W vs 105 W+10%
CPU cores14 vs 8+75%
Refresh rate165 Hz vs 144 Hz+15%
3DMark Steel Nomad Light14,047 vs 13,080+7%
Weight2.2 kg vs 2.25 kg+2%
G-Sync / FreeSyncYes · Katana 15 B13 RTX 4070 (2023): No
Advanced OptimusYes · Katana 15 B13 RTX 4070 (2023): No

Why is Katana 15 B13 RTX 4070 (2023) better than Legion 5 15 RTX 5070 (2025)?

Video memory8 GB vs 32 GB4×
Fan noise (max. load)66.7 dB vs 54.4 dB+23%
Key travel1.6 mm vs 1.7 mm+6%
Screen size15.1″ vs 15.6″+3%

Specifications

Side by side

Only differences	Lenovo Legion 5 15 RTX 5070 (2025)≈ $2,0508.5	MSI Katana 15 B13 RTX 4070 (2023)≈ $2,1506.0
Graphics
Graphics card	GeForce RTX 5070 Laptop	GeForce RTX 4070 Laptop
GPU maker	NVIDIA	NVIDIA
GPU power (TGP)	115 W	105 W
Video memory	8 GB	32 GB
Video memory type	GDDR7	GDDR6
GPU shader cores	4,608	4,608
GPU compute (FP32)	26.2 TFLOPS	18.2 TFLOPS
3DMark Steel Nomad Light	14,047	13,080
Processor
Processor	Core Ultra 7 255HX	Core i9-13900H
CPU maker	Intel	Intel
CPU cores	14	8
Max CPU clock	4.9 GHz	4.4 GHz
Processor options	Core i7-13650HX, Core Ultra 7 255HX	Core i7-13620H, Core i9-13900H
Display
Screen size	15.1″	15.6″
Resolution	2560 × 1600	1920 × 1080
Resolution class	QHD (1440p/1600p)	Full HD (1080p/1200p)
Refresh rate	165 Hz	144 Hz
Panel type	IPS	IPS
Brightness	500 nits	250 nits
sRGB coverage	100%	57%
Response time	—	33 ms
DCI-P3 coverage	—	38%
Pixel density	150 ppi	141 ppi
Aspect ratio	16:10	16:9
G-Sync / FreeSync	Yes	No
Advanced Optimus	Yes	No
MUX switch	Yes	Yes
HDR	No	No
Touchscreen	No	No
Memory & storage
RAM (up to)	32 GB	32 GB
RAM (base)	16 GB	16 GB
RAM type	DDR5	DDR5
RAM speed	5,600 MHz	5,200 MHz
Max. supported RAM	64 GB	64 GB
RAM slots	2	2
Upgradable RAM	Yes	Yes
SSD (up to)	1,000 GB	1,000 GB
SSD (base)	1,000 GB	1,000 GB
M.2 SSD slots	2	2
SSD interface	PCIe 4.0 x4	PCIe 4.0 x4
Battery & power
Battery capacity	80 Wh	54 Wh
Power adapter	245 W	200 W
USB-C charging (Power Delivery)	Yes	No
USB-C charging power	100 W	—
Design & cooling
Weight	2.2 kg	2.25 kg
Thickness	21.5 mm	25 mm
Width	344.9 mm	359 mm
Depth	255.3 mm	259 mm
Body material	Aluminium, Plastic	Plastic
Colours	Black	Black
Cooling fans	2	2
Vapor chamber cooling	No	No
Liquid metal (CPU)	No	No
Fan noise (max. load)	66.7 dB	54.4 dB
Ports & wireless
Thunderbolt / USB4	Thunderbolt 4	—
Thunderbolt or USB4	Yes	No
USB-C ports	2	1
USB-A ports	3	3
HDMI	HDMI 2.1	HDMI 2.1
HDMI 2.1	Yes	Yes
(Mini) DisplayPort	No	No
Ethernet	—	1 Gbit/s
Ethernet port	Yes	Yes
SD card reader	No	No
3.5 mm audio jack	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 6
Bluetooth	5.4	5.2
Keyboard & camera
Keyboard backlight	Zone RGB	—
Per-key RGB	No	—
Backlit keyboard	Yes	Yes
Numeric keypad	Yes	Yes
Key travel	1.6 mm	1.7 mm
Webcam	720p	720p
IR camera (face login)	No	No
Fingerprint reader	No	No
Audio
Speakers	2.0	2 speakers
Dolby Atmos	No	No