A recent benchmark listing for Intel's Core Ultra 7 255H processor has graced the interwebs. If the numbers are anything to go by, Arrow Lake-H seems all set to bring substantial improvements to single-threaded performance, with somewhat disappointing multi-threaded performance - all thanks to Intel doing away with hyperthreading support.
Single-thread behemoth
According to the Passmark listing, the Core Ultra 7 255H managed an impressive single-thread score of 4631 points - a whopping 32% improvement over the Core Ultra 7 155H "Meteor Lake-H" CPU. Arrow Lake-H utilizes Lion Cove performance cores, which are clearly showing their merit, aided by TSMC's N3B process. Interestingly, this result puts the Core Ultra 7 255H roughly 17% ahead of the AMD Ryzen AI 9 HX 370 "Strix Point" CPU, although the story is wildly different in overall performance, where the Arrow Lake-H part lags behind the Strix Point part by almost 20%.
Compared to its predecessor, the Core Ultra 7 255H is around 12% ahead in overall performance, which is a decent generational uplift, but certainly not nearly as impressive as the lead in the single-threaded test. The Arrow Lake-H CPUs are also expected to boast iGPUs with up to eight Xe LPG+ cores, which will be slower than those found in Lunar Lake chips that utilize Xe2 cores. Of course, synthetic benchmarks are always to be taken with a pinch of salt, and real-world performance will most likely vary depending on the workload.