The Intel Core Ultra 7 255H is a mobile processor with 16 cores, launched in January 2025. It is part of the Ultra 7 lineup, using the Arrow Lake-H architecture with BGA 2049. Core Ultra 7 255H has 24 MB of L3 cache and operates at 2000 MHz by default, but can boost up to 5.1 GHz, depending on the workload. Intel is making the Core Ultra 7 255H on a 3 nm production node, the transistor count is unknown. The silicon die of the chip is not fabricated at Intel, but at the foundry of TSMC. The multiplier is locked on Core Ultra 7 255H, which limits its overclocking potential.
With a TDP of 28 W, the Core Ultra 7 255H consumes only little energy. Intel's processor supports DDR5 and LPDDR5X memory with a dual-channel interface. The highest officially supported memory speed is 6400 MT/s. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. For communication with other components in the machine, Core Ultra 7 255H uses a PCI-Express Gen 5 connection. This processor features the Arc Graphics 140T integrated graphics solution.
Hardware virtualization is available on the Core Ultra 7 255H, 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.