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SMT Remains Very Advantageous For 5th Gen AMD EPYC Performance

Written by Michael Larabel in Processors on 6 February 2025 at 10:50 AM EST. Page 3 of 6. 96 Comments.

RocksDB benchmark with settings of Test: Read While Writing. SMT Enabled - Default was the fastest.

RocksDB benchmark with settings of Test: Read Random Write Random. SMT Enabled - Default was the fastest.

The Meta/Facebook RocksDB persistent key-value store does really well with SMT too on 5th Gen AMD EPYC servers.

OpenSSL benchmark with settings of Algorithm: AES-256-GCM. SMT Enabled - Default was the fastest.

OpenSSL benchmark with settings of Algorithm: ChaCha20. SMT Enabled - Default was the fastest.

OpenSSL benchmark with settings of Algorithm: ChaCha20-Poly1305. SMT Enabled - Default was the fastest.

OpenSSL also performs very well with SMT on the EPYC 9005 series. Great wins in performance and power efficiency with SMT on AMD's newest Zen 5 processors.

LuxCoreRender benchmark with settings of Scene: DLSC, Acceleration: CPU. SMT Enabled - Default was the fastest.

LuxCoreRender benchmark with settings of Scene: Rainbow Colors and Prism, Acceleration: CPU. SMT Enabled - Default was the fastest.

LuxCoreRender benchmark with settings of Scene: Orange Juice, Acceleration: CPU. SMT Enabled - Default was the fastest.

Like the Embree results, really strong performance with SMT using the LuxCoreRender open-source software.

OSPRay Studio benchmark with settings of Camera: 2, Resolution: 4K, Samples Per Pixel: 1, Renderer: Path Tracer, Acceleration: CPU. SMT Enabled - Default was the fastest.

OSPRay Studio benchmark with settings of Camera: 2, Resolution: 4K, Samples Per Pixel: 32, Renderer: Path Tracer, Acceleration: CPU. SMT Enabled - Default was the fastest.

OSPRay Studio benchmark with settings of Camera: 3, Resolution: 4K, Samples Per Pixel: 1, Renderer: Path Tracer, Acceleration: CPU. SMT Enabled - Default was the fastest.

OSPRay Studio benchmark with settings of Camera: 3, Resolution: 4K, Samples Per Pixel: 32, Renderer: Path Tracer, Acceleration: CPU. SMT Enabled - Default was the fastest.

Ditto to OSPRay Studio as additional creator software delivering really nice performance and power efficiency wins with SMT on this AMD EPYC 9575F server.