SPEC CPU result comparison

Comparison of x86_64 levels - Summer 2022

525.x264_r

Compilers:

Methods:

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AMD EPYC 7543P (zen3 based Milan)

The values shown as "run-times" are not actual times but normalized times, the biggest obtained time was assigned to be 500 and the others were scaled appropriately



gcc12 GCC 12.1.0
Smaller is better.

Intel Cascade Lake Xeon

The values shown as "run-times" are not actual times but normalized times, the biggest obtained time was assigned to be 500 and the others were scaled appropriately



gcc12 GCC 12.1.0
Smaller is better.

Regressions

Time What Against Machine
11.05% gcc12 lto Ofast x86_64_v3 gcc12 lto Ofast x86_64_v2 AMD EPYC 7543P (zen3 based Milan) Chart Table
7.00% gcc12 lto Ofast x86_64_v3 gcc12 lto Ofast generic AMD EPYC 7543P (zen3 based Milan) Chart Table
4.48% gcc12 pgolto Ofast generic gcc12 lto Ofast generic AMD EPYC 7543P (zen3 based Milan) Chart
3.78% gcc12 pgolto Ofast x86_64_v2 gcc12 lto Ofast x86_64_v2 AMD EPYC 7543P (zen3 based Milan) Chart
2.43% gcc12 lto Ofast x86_64_v3 gcc12 lto Ofast x86_64_v2 Intel Cascade Lake Xeon Chart Table
Regressions smaller than 2% are not shown.