Benchmark #229

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Horizon Zero Dawn: SMT on vs off (zen3 CPU)

Clone of https://flightlessmango.com/logs/5663. Game: benchmark scene @ QHD fullscreen, settings=ultra. Env: Lutris, wineGE 8.25, DXVK 2.4, VKD3D 2.12, gamemode=off. HW: 4080, 5900x, 970evo+, 32GB 3800 16-16-16 (sync 1:1:1). PBO: 150W/110A/130A, override +75MHz, scalar x1, CO -25 all. Limit for noSMT: taskset -c 0-11

Submitted 1 month ago by erikas2

Specifications
Label OS GPU CPU RAM OS specific
normal Manjaro Linux NVIDIA GeForce RTX 4080 AMD Ryzen 9 5900X 12-Core Processor 34 GB 6.8.12-3-MANJARO schedutil
no-smt Manjaro Linux NVIDIA GeForce RTX 4080 AMD Ryzen 9 5900X 12-Core Processor 34 GB 6.8.12-3-MANJARO schedutil
# Top runs: * **Highest FPS**: `normal` – This run achieved the highest average FPS, outperforming the other run by about 6%. * **Smoothest FPS**: `normal` – This run also had the lowest standard deviation and variance in FPS values, indicating the smoothest performance. * **Best overall**: `normal` – With the highest FPS and the most stable performance, this run is the best overall. # Issues: * The run without SMT enabled had significantly worse performance, with a decrease in average FPS by about 6% and a higher variance in FPS (more than 40% increase in variance) compared to the run with SMT enabled. * The frame time was more inconsistent in the run without SMT enabled, as indicated by a variance that was more than double that of the SMT-enabled run. # Summary This benchmark compares the performance of Horizon Zero Dawn with SMT (Simultaneous Multithreading) enabled versus disabled on a Zen 3 CPU. The run with SMT enabled clearly outperformed the one without, delivering higher average FPS and more consistent frame times. Both runs were executed on identical hardware and software configurations, which underscores the tangible performance benefits of having SMT enabled for this particular game and system setup.