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[SITUATION] · [QUIET] · [TECHNOLOGY]

2 clusters · 2 sources · 20 days · First seen · Last updated

AMD processor performance developments

Overview

Reports regarding AMD processor performance have focused on both upcoming hardware architecture and software-level optimizations for existing generations.

Regarding future hardware, the Zen 6 processor family is expected to feature per-core performance management tools designed to reduce gaming stutter. These features, including Collaborative Processor Performance Control (CPPC) Performance Priority and PQOS Global Bandwidth Enforcers, aim to prioritize gaming workloads by setting minimum frequencies for active cores and limiting background memory bandwidth access.

In terms of software optimization, an AMD developer proposed a patch for the GCC compiler to enhance performance for Zen 4 and Zen 5 processors. By adjusting branch mispredict scales in the x86-tune-costs.h header file, the patch encourages the use of branchless code. Benchmarks indicated a 12% performance increase for Zen 5 and a 9% increase for Zen 4 in specific floating-point tests, though developers noted these results may vary under different workloads.

Entities

Yuri Bubliy (1usmus) · Zen 5 · Zen 6 · AMD · Advanced Micro Devices (AMD)

Timeline

  1. 23 days ago

    [TECHNOLOGY] 2 sources
    AMD developer proposes GCC patch to boost Zen 5 performance

    An AMD developer proposed a GCC compiler patch that increases Zen 5 performance by 12% in SPEC CPU 2017 benchmarks by adjusting branch misprediction cost scales.

  2. about 1 month ago

    [TECHNOLOGY] 3 sources
    AMD's Zen 6 CPUs target gaming stutter with new core‑level controls

    AMD’s upcoming Zen 6 CPUs will add per‑core performance controls and memory‑bandwidth limits to improve 1 % lows and cut gaming stutter, according to developer 1usmus.

Sources

blogspan.net · itn.lv