The Big Blue company unveiled the Intel Core Ultra 9 275HX at CES 2025, which includes 8 Lion Cove performance cores and 16 Skymont efficiency cores, totaling 24 cores and 24 threads due to the absence of Hyper-Threading support. Initially, expectations for multicore performance from Arrow Lake-HX were not high, but a recent Cinebench R23 run suggests otherwise. However, it is important to approach this information with caution until more details are available.
The results are surprising, as the Core Ultra 9 275HX, like its predecessor, features the same number of performance and efficiency cores without Hyper-Threading support. Despite slightly lower single-core performance, the 275HX outperforms the Core i9-14900HX by approximately 11% in multicore performance. While some desktop-replacement laptops may achieve higher multicore scores, it is advisable to consider median figures as the specifics of the tested system are unknown. There seems to be a significant improvement in multicore scaling, although a recent Passmark result with the Core Ultra 7 255H showed improvements in single-core but not as much in multicore performance.
