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A comprehensive benchmark comparison of Intel laptop CPUs spanning 18 years, from the 2008 Core 2 Duo T9300 (Penryn) to the latest Panther Lake (Core Ultra X7 358H). Testing was conducted on Ubuntu 26.04 across 150+ benchmarks on 15 different laptops. On a geometric mean basis, Panther Lake delivers 21.5x the performance of Penryn, with the most extreme individual benchmark showing a 95x speedup. The comparison also tracks CPU power consumption (via RAPL/PowerCap) from Sandy Bridge onward to evaluate performance-per-watt improvements across generations.

Benchmarking 18 Years Of Intel Laptop CPUs: Panther Lake As Much As 95x The Speed Of Penryn