Healthy Competition With GCC 15 vs. LLVM Clang 20 Performance On AMD Zen 5

Written by Michael Larabel in Software on 11 February 2025 at 01:03 PM EST. Page 3 of 5. 10 Comments.

LLVM Clang is on a level playing field with GCC on Linux x86_64 performance in recent years for those not having looked at any Clang benchmarks in a while or if it's been years since you tried out Clang during its more primitive days.

👁 WebP Image Encode benchmark with settings of Encode Settings: Quality 100. Clang 20.1 Git was the fastest.

👁 WebP Image Encode benchmark with settings of Encode Settings: Quality 100, Lossless. Clang 20.1 Git was the fastest.

👁 WebP Image Encode benchmark with settings of Encode Settings: Quality 100, Highest Compression. Clang 19.1.7 was the fastest.

👁 WebP Image Encode benchmark with settings of Encode Settings: Quality 100, Lossless, Highest Compression. Clang 20.1 Git was the fastest.

Clang on this AMD EPYC 9005 series server was delivering some small performance wins when it came to the performance of the compiled WebP image encoder.

👁 srsRAN Project benchmark with settings of Test: PDSCH Processor Benchmark, Throughput Total. GCC 15.0.1 Git 31 Jan was the fastest.

👁 srsRAN Project benchmark with settings of Test: PUSCH Processor Benchmark, Throughput Total. GCC 15.0.1 Git 31 Jan was the fastest.

👁 srsRAN Project benchmark with settings of Test: PDSCH Processor Benchmark, Throughput Thread. GCC 15.0.1 Git 31 Jan was the fastest.

The srsRAN 5G software was having some significant performance advantages when compiled under the GNU Compiler Collection.

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URL: https://www.phoronix.com/review/clang20-gcc15-amd-znver5/3

⇱ Healthy Competition With GCC 15 vs. LLVM Clang 20 Performance On AMD Zen 5 - Phoronix

Healthy Competition With GCC 15 vs. LLVM Clang 20 Performance On AMD Zen 5