Technology glossary

Intel Core Ultra 7 255HX

A 20-core, 55 W base power high-performance laptop processor from Intel’s Arrow Lake generation.

According to Intel, the Core Ultra 7 255HX has eight performance cores and twelve efficient cores; its 20 cores run 20 threads. The maximum turbo frequency is 5.2 GHz and the cache is 30 MB. Base power is 55 W and maximum turbo power 160 W, so it is usually used in gaming laptops with discrete graphics and strong cooling.

The integrated graphics have 4 Xe-cores; the NPU is rated at 13 TOPS. It supports dual-channel DDR5 up to 6400 MT/s and up to 256 GB of memory, up to 24 lanes of PCIe 5.0/4.0, and Thunderbolt 4. It is made on TSMC’s N3B process and launched in the first quarter of 2025.

Devices using this technology

Laptops · 2025

MSI Crosshair 16 HX AI D2XWGKG-211US

The Crosshair 16 HX AI D2XWGKG-211US is the US RTX 5070 Laptop GPU version of MSI’s mid-range gaming laptop: a Core Ultra 7 255HX, a 240 Hz QHD+ IPS-level display, 32 GB of DDR5 in two slots and two M.2 slots, one of them PCIe 5.0. The GPU can reach 115 W with Dynamic Boost. On Notebookcheck’s Core Ultra 9 sample, the display was bright and free of PWM; the single USB-C port, 8 GB of video memory and hot exhaust air were criticised.

Sources

  1. Intel: Intel Core Ultra 7 Processor 255HX specifications