Lenovo Legion 5i Gen 10 (15IAX10, 83F00012CF) / ASUS ROG Zephyrus G16 (2025) GU605CX

Lenovo Legion 5i Gen 10 (15IAX10, 83F00012CF): 83F00012CF: Intel Core Ultra 7 255HX, GeForce RTX 5050 Laptop GPU 8 GB (115 W), 1 × 16 GB DDR5-5600, 1 TB SSD, 15.1-inch 2560 × 1600 OLED 165 Hz, Eclipse Black, French/English keyboard. 15IAX10 configurations with the RTX 5060/5070 and the Legion 5i 15IRX10 with Core i7-13650HX/14700HX are separate models.

ASUS ROG Zephyrus G16 (2025) GU605CX: GU605CX: the RTX 5090 Laptop GPU version; the GU605CX-QR111W and GU605CX-XS98 listed by ASUS come with 64 GB of memory and a 2 TB SSD. In the US, the GU605CX-G16.U9X5090 sold by Best Buy is listed with 32 GB. The same chassis is also sold with the RTX 5060/5070/5070 Ti/5080.

Specification	Lenovo Legion 5i Gen 10 (15IAX10, 83F00012CF)	ASUS ROG Zephyrus G16 (2025) GU605CX
Release year	2025	2025
Processor	Intel Core Ultra 7 255HX; 20 cores (8 performance + 12 efficiency), 20 threads, up to 5.2 GHz, 30 MB Intel Smart Cache The Intel AI Boost NPU, rated at up to 13 TOPS, is built into the processor. Lenovo	Intel Core Ultra 9 285H; 16 cores, 16 threads; 2.9 GHz base, up to 5.4 GHz; 24 MB cache The processor’s Intel AI Boost NPU delivers up to 13 TOPS of AI processing; some Windows AI features use this unit instead of the graphics card. ASUS
Graphics	NVIDIA GeForce RTX 5050 Laptop GPU, 8 GB GDDR7; 2662 MHz boost, 115 W TGP, 440 AI TOPS 115 W TGP is among the higher power limits used for this GPU in laptops; the same RTX 5050 runs at lower power in thinner chassis. The graphics chip is soldered. Lenovo also offers the RTX 5060 and 5070 Laptop GPU in this chassis at 115 W. Lenovo	NVIDIA GeForce RTX 5090 Laptop GPU, 24 GB GDDR7; ROG Boost 1647 MHz; 120 W (100 W + 20 W Dynamic Boost) 120 W is the upper power limit including Dynamic Boost: the extra 20 W is shifted to the GPU when the processor load is low and is not always available. The RTX 5070 Ti version of the same chassis is limited to 115 W, and the RTX 5060 and 5070 versions to 105 W. ASUS
Display	15.1-inch WQXGA (2560 × 1600) OLED; 165 Hz, 500 nits typical / 1000 nits peak, 100% DCI-P3, glossy surface, DisplayHDR True Black 600, Dolby Vision DisplayHDR True Black 600 is the VESA tier verifying 600-nit peak brightness and very low black level on OLED panels. The panel is factory colour-calibrated and TÜV-certified for low blue light and flicker-free operation; it is not a touchscreen. The platform sheet does not list G-SYNC for this panel. Lenovo	16-inch 2.5K (2560 × 1600) OLED, 16:10, 240 Hz; 100% DCI-P3; G-Sync; Pantone Validated 240 Hz shows up to 240 frames per second in games; G-Sync matches the display refresh rate to the graphics card’s frame rate to prevent tearing. Pantone Validated means the display colours are verified against Pantone reference colours. ASUS does not give brightness or response time on this page. ASUS
Memory	16 GB (1 × 16 GB) DDR5-5600 SO-DIMM; 2 slots, dual-channel capable With one module fitted at the factory, memory runs in single channel; adding a matching module to the free slot enables dual channel. The highest capacity Lenovo has tested is 32 GB. Lenovo	64 GB LPDDR5X-7467, soldered on board, dual channel; no memory slot Memory cannot be upgraded later; the capacity chosen at purchase is permanent. ASUS
Storage	1 TB M.2 2242 PCIe 4.0 x4 NVMe SSD; 2 × M.2 2280 PCIe 4.0 x4 slots A second SSD can be fitted in the free M.2 slot. Lenovo	2 TB M.2 NVMe PCIe 4.0 SSD; 2 × M.2 PCIe slots in total The second M.2 slot allows an extra SSD. ASUS gives no separate PCIe generation for the free slot. ASUS
Ports	1 × Thunderbolt 4 / USB4 40 Gbps USB-C (DisplayPort 2.1), 1 × USB-C 10 Gbps (USB PD 95–100 W, DisplayPort 2.1), 3 × USB-A 5 Gbps (one always on), 1 × HDMI 2.1 (up to 8K 60 Hz), 1 × RJ-45 gigabit Ethernet, 3.5 mm headset jack, slim-tip power input USB-C charging works only through the 10 Gbps port; the Thunderbolt 4 port does not accept power. Up to 3 external displays are supported alongside the built-in panel: HDMI up to 8K 60 Hz, USB-C up to 5K 60 Hz. There is no SD card reader. Lenovo	1 × Thunderbolt 4 (40 Gbps, DisplayPort, power input); 1 × USB-C 10 Gbps (DisplayPort, power input, G-SYNC); 2 × USB-A 10 Gbps; HDMI 2.1 FRL; UHS-II SD card reader (312 MB/s); 3.5 mm audio Both USB-C ports support an external display and charging; the 10 Gbps USB-C port also carries G-SYNC to an external display. ASUS does not state the USB-C charging power. ASUS
Wireless	Wi-Fi 7 (802.11be) 2 × 2, Bluetooth 5.4 Lenovo	Wi-Fi 7 (802.11be), tri-band, 2×2; Bluetooth 5.4 ASUS
Battery and power	80 Wh lithium-ion; 245 W slim-tip adapter, Super Rapid Charge Lenovo rates battery life at 4.4 hours in MobileMark 30 and 10.8 hours in local 1080p video playback. Super Rapid Charge goes from 0 to 30% in 10 minutes and to 70% in 30 minutes; the battery must be at least 10 °C while charging. Lenovo	—
Keyboard and touchpad	24-zone RGB backlit keyboard (French/English); 75 × 120 mm buttonless Mylar-surface touchpad Lenovo	—
Audio, camera and security	2 × 2 W HARMAN speakers, Nahimic Audio; 5 MP camera with e-shutter; firmware TPM 2.0 This model has no IR camera or fingerprint reader, so Windows Hello biometric sign-in is not supported. Lenovo	—
Chassis	Eclipse Black; aluminium lid (sandblasted anodised), PC-ABS plastic bottom Lenovo	—
Operating system	Windows 11 Home (French/English) Lenovo	Windows 11 Home or Windows 11 Pro (depending on SKU) ASUS
Size and weight	344.9 × 255.35 × 19.95–21.54 mm; from 1.9 kg Lenovo	—
Certifications and warranty	ENERGY STAR 9.0, EPEAT Gold; 1-year courier or carry-in warranty on the Canadian model Warranty length varies by country. Lenovo	—
Graphics switching	—	MUX Switch and NVIDIA Advanced Optimus Advanced Optimus switches the internal display between the processor’s integrated graphics and the RTX 5090 without a restart. The MUX switch connects the display directly to the RTX 5090, removing the integrated graphics from the path in games. ASUS
Display surface	—	Anti-glare, low-reflection coating (AGLR) The coating is used to reduce reflections from lamps and windows in bright rooms. ASUS
Battery and adapter	—	90 Wh, 4-cell lithium-ion; 240 W adapter (20 V, 12 A) ASUS’s Middle East page also lists a 100 W USB-C adapter in the box and notes that the adapter can vary by region and model. ASUS
Audio	—	2 tweeters and 4 speakers with dual force-cancelling woofers; Smart Amp; Dolby Atmos; 3-microphone array, AI noise cancelling The force-cancelling woofer layout uses opposing drivers to reduce bass vibration passing into the chassis. ASUS
Camera and keyboard	—	1080p FHD IR camera (Windows Hello); single-zone RGB backlit keyboard; Slash Lighting on the lid The IR camera enables face sign-in with Windows Hello. ASUS
Dimensions and weight	—	35.4 × 24.6 × 1.49–1.74 cm; 1.95 kg The RTX 5060 and 5070 versions are 1.64 cm and 1.85 kg; the RTX 5070 Ti, 5080 and 5090 versions are 1.74 cm and 1.95 kg. ASUS