The Intel Core Ultra 7 255HX is a mobile processor with 20 cores, launched in January 2025. It is part of the Ultra 7 lineup, using the Arrow Lake-HX architecture with BGA 2114. Core Ultra 7 255HX has 30 MB of L3 cache and operates at 2.4 GHz by default, but can boost up to 5.2 GHz, depending on the workload. Intel is making the Core Ultra 7 255HX on a 3 nm production node using 17,800 million transistors. The silicon die of the chip is not fabricated at Intel, but at the foundry of TSMC. You may freely adjust the unlocked multiplier on Core Ultra 7 255HX, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 55 W, the Core Ultra 7 255HX consumes typical power levels for a modern PC. Intel's processor supports DDR5 memory with a dual-channel interface. The highest officially supported memory speed is 6400 MT/s. For communication with other components in the computer, Core Ultra 7 255HX uses a PCI-Express Gen 5 connection. This processor features the Arc Xe-LPG Graphics 64EU integrated graphics solution.
Hardware virtualization is available on the Core Ultra 7 255HX, which greatly improves virtual machine performance. Additionally, IOMMU virtualization (PCI passthrough) is supported, so that guest virtual machines may directly use host hardware. Programs using Advanced Vector Extensions (AVX) can run on this processor, boosting performance for calculation-heavy applications. Besides AVX, Intel is including the newer AVX2 standard, too, but not AVX-512. This processor is equipped with a Neural Processing Unit (NPU) that comes with a performance rating of up to 13 TOPS.