Lenovo recently sent over their new ThinkPad P1 Gen 8 laptop for review under Linux. My Linux review on that ThinkPad P1 Gen 8 laptop will be coming up in the near future along with some other benchmarks from that premium mobile workstation. But with this being the first time I’ve had an Intel Core Ultra 7 255H “Arrow Lake H” device at Phoronix, here are some standalone benchmarks looking at the CPU performance of that 16-core mobile processor compared to various other Intel and AMD SoCs in different laptops while running Ubuntu Linux.
The Intel Core Ultra 7 255H is one of Intel’s mid-tier/higher-end Arrow Lake H offerings with having 16 physical cores comprised of 6 x P cores, 8 x E cores, and 2 x LPE cores. The Core Ultra 7 255H has a 5.1GHz maximum turbo frequency, 2.0GHz base frequency on the P cores, 4.4GHz maximum E core turbo frequency, and 2.5GHz maximum LPE core turbo frequency. This SoC has a 24MB Intel Smart Cache and a default base power rating of 28 Watts while having a maximum turbo power rating of 115 Watts.
The Intel Core Ultra 7 255H is able to accommodate up to 128GB of LPDDR5/LPDDR5x or DDR5-6400 memory across two memory channels. There are Intel Arc 140T graphics available with the Core Ultra 7 255H though with the Lenovo ThinkPad P1 Gen 8 and many other workstation laptops are discrete graphics too.
As this is my first Arrow Lake H device I received for testing at Phoronix, in today’s article is looking at just the Core Ultra 7 255H CPU performance on Linux ahead of the ThinkPad P1 Gen 8 laptop review itself. The 255H and the laptop in general were working out fine on modern Linux distributions — more details on the ThinkPad P1 G8 in the review. For the purposes of today’s article all the benchmarks were on Ubuntu 25.04 given that over the past several months had been re-testing various laptops on that modern software stack. That is Ubuntu 25.04 with the Linux 6.14 kernel, GCC 14, Mesa 25.0, and other up-to-date components as of earlier this year.
The Core Ultra 7 255H was tested within the Lenovo ThinkPad P1 Gen 8 both in its default configuration and again after switching to the “performance” platform profile for looking at the full capabilities of the SoC/device rather than in the default balanced configuration.
The laptops and SoCs for this CPU performance benchmarking on Ubuntu 25.04 included:
– Core i7 8550U – Dell XPS 9370
– Core i7 8565U – Dell XPS 9380
– Core i7 1065G7 – Dell XPS 7390
– Core i7 1165G7 – Dell XPS 9310
– Core i7 1185G7 – Dell XPS 9310
– Core i7 1280P – MSI Prestige 14Evo
– Core i5 1334U – Framework 12
– Core Ultra 7 155H – Acer Swift Go 14
– Core Ultra 7 256V – ASUS Zenbook S14
– Core Ultra 7 258V – X1 Carbon G13
– Ryzen 7 4700U – Lenovo IdeaPad 5
– Ryzen 9 5900HX – ASUS ROG Strix G513QY
– Ryzen 7 7840HS – Framework 16
– Ryzen 7 7840U – Acer Swift Edge 16
– Ryzen 7 7840U – Framework 13
– Ryzen 7 PRO 5850U – ThinkPad T14s G2a
– Ryzen 7 PRO 6850U – ThinkPad X13 G3
– Ryzen 7 PRO 7840U – ThinkPad P14s G4
– Ryzen AI 5 340 – HP OmniBook 5
– Ryzen AI 7 PRO 360 – ThinkPad T14s G6
– Ryzen AI 9 365 – ASUS Zenbook S16
– Ryzen AI 9 HX 370 – ASUS Zenbook S16
– Ryzen AI 9 HX 370 – Framework 13
– Ryzen AI Max 390 – HP ZBook Ultra G1a
– Ryzen AI Max+ PRO 395 – HP ZBook Ultra G1a
– Core Ultra 7 255H – ThinkPad P1 G8
– Core Ultra 7 255H – ThinkPad P1 G8 – Perf
Thanks to Lenovo for sending over the ThinkPad P1 Gen 8 for a few weeks of Linux testing at Phoronix. Again stay tuned for the full review on Phoronix with today diving into the CPU performance and the CPU power consumption / power efficiency under Ubuntu Linux.
