Lenovo Legion 5i Gen 10 (15IAX10, 83F00012CF) / MSI Stealth 18 HX AI A2XWJG-035US

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.

MSI Stealth 18 HX AI A2XWJG-035US: A2XWJG-035US (US): Core Ultra 9 275HX, RTX 5090 Laptop GPU 24 GB, 64 GB DDR5, 2 TB, 18-inch UHD+ Mini LED 120 Hz, Windows 11 Pro, Midnight Black. The RTX 5080 A2XWIG, RTX 5070 Ti A2XWHG and QHD+ 240 Hz IPS SKUs are separate configurations.

SpecificationLenovo Legion 5i Gen 10 (15IAX10, 83F00012CF)MSI Stealth 18 HX AI A2XWJG-035US
Release year20252025
ProcessorIntel 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 275HX; 2.1–5.4 GHz

Arrow Lake-HX generation 24-core processor (8 performance, 16 efficiency) on the Intel HM870 chipset. There is no Hyper-Threading, so each core runs one thread.

MSI
GraphicsNVIDIA 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; 150 W maximum graphics power with Dynamic Boost; up to 1875 MHz boost

The laptop RTX 5090 is not the same card as the desktop RTX 5090. 150 W is the ceiling MSI sets for this thin chassis, so slightly lower GPU performance than thicker 175 W models is expected. MSI quotes 1824 AI TOPS.

MSI
Display15.1-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
18-inch UHD+ 3840 × 2400, 120 Hz, Mini LED, HDR 1000, 100% DCI-P3; matte surface

The 16:10 panel is an LCD lit from behind by many small LED zones; local dimming gives high brightness and contrast in HDR content, though halos can appear around bright objects in dark scenes. MSI’s family page describes the panel as "IPS-Level".

MSI
Memory16 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 (2 × 32 GB) DDR5-5600; 2 SO-DIMM slots, up to 96 GB

Both slots come populated, so an upgrade means replacing the modules. MSI lists support up to DDR5-6400; the actual speed depends on the memory combination and the CPU.

MSI
Storage1 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 NVMe PCIe Gen4 x4 SSD; 1 M.2 slot

There is no second SSD slot; MSI advises consulting a service centre before upgrading the SSD.

MSI
Ports1 × 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
2 × Thunderbolt 4 (DisplayPort / Power Delivery 3.1); 2 × USB 3.2 Gen 2 Type-A; 1 × HDMI 2.1 (8K 60 Hz / 4K 120 Hz); 1 × RJ45; 1 × headset combo jack

Thunderbolt 4 carries 40 Gbit/s data and video over the USB-C shaped port. This model has no Thunderbolt 5.

MSI
WirelessWi-Fi 7 (802.11be) 2 × 2, Bluetooth 5.4 Lenovo—
Battery and power80 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 touchpad24-zone RGB backlit keyboard (French/English); 75 × 120 mm buttonless Mylar-surface touchpad Lenovo—
Audio, camera and security2 × 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
—
ChassisEclipse Black; aluminium lid (sandblasted anodised), PC-ABS plastic bottom Lenovo—
Operating systemWindows 11 Home (French/English) Lenovo—
Size and weight344.9 × 255.35 × 19.95–21.54 mm; from 1.9 kg Lenovo399.99 × 289.67 × 19.9–23.99 mm; 2.89 kg MSI
Certifications and warrantyENERGY STAR 9.0, EPEAT Gold; 1-year courier or carry-in warranty on the Canadian model

Warranty length varies by country.

Lenovo
—
Card reader—1 × SD Express card reader

SD Express uses a PCIe/NVMe interface for much faster transfers with compatible cards; ordinary SD cards are still read.

MSI
Networking—Intel Killer BE Wi-Fi 7 (BE1750); Bluetooth 5.4; 2.5 GbE Killer E3100G wired LAN MSI
Keyboard and input—SteelSeries per-key RGB gaming keyboard with numpad and Copilot key; fingerprint reader MSI
Webcam—IR FHD (1080p 30 fps) HDR camera with 3DNR+ noise reduction and a physical shutter

The IR camera enables Windows Hello face sign-in.

MSI
Audio—2 × 2 W speakers and 4 × 2 W woofers (Dynaudio tuned); array microphone MSI
Battery and adapter—99.9 Wh, 4-cell lithium-ion; 280 W adapter

99.9 Wh is just under the common airline carry-on battery limit. Full GPU performance needs the 280 W adapter.

MSI
Security—fTPM 2.0, Secured-core PC, Kensington lock slot MSI
Operating system and warranty—Windows 11 Pro; 1-year limited warranty (including 1 year global coverage) MSI