Benchmark leak: Intel Core Ultra X7 358H slower than Core Ultra 7 255H but iGPU impresses

Intel already announced Panther Lake in mid-October, but the company did not confirm details on specific CPUs or performance. After the iGPU scored well in an early Geekbench leak, the latest benchmark results from Laptop Review now show how the Core Ultra X7 358H performs.

The faster chipset hits around 20,000 points in Cinebench R23 with a power draw of 65 watts. According to Laptop Review, that makes the chip 8.3% slower than the Intel Core Ultra 7 255H at the same power level. That said, our benchmark database shows that the older Arrow Lake chip only averages 17,812 points. More detailed tests will show if Panther Lake ends up being slightly faster or slower.

The latest benchmarks show that the Core Ultra X7 358H with four performance cores and twelve efficiency cores does not make major progress in terms of CPU performance. The standout feature of Intel’s next-gen laptop CPUs is the Xe3 iGPU with twelve CUs, which scores 6,830 points in 3DMark Time Spy. This is an impressive 72% faster than the iGPU of the Core Ultra 7 255H.

First laptops based on Intel Panther Lake will likely launch at CES in January 2026, and by then we should get more info on the performance and efficiency of Intel’s next-gen laptop CPUs.