The follwing are some FPS graphics from Metro Last Light (MLL) built in benchmark on Ryzen 7 1700 @ 3.0Ghz.
Windows 7, SMT=ON, Preset=Low
- Such undescribable horror.
Windows 7, SMT=OFF, Preset=Low
- So turning off SMT helps significantly, maybe even to playable levels, but there are still some very low, noticable dips.
Windows 10 1703, SMT=ON, Preset=VeryHigh
- Windows 10 shows much better minimum frame times, even with SMT enabled and the preset on VeryHigh.
Conclusions
- Metro Last Light is a very poorly optimized game. Other games do not experience this issue.
- The minimum frame rates do not adquately describe the stuttering horror that is Metro Last Light.
- AMD’s implementation of Simultaneous Multi-Threading (SMT) on Ryzen interacts with MLL extremely poorly.
- Windows 10 1703 dramtically improves frame-time consistency compared to Windows 7 in games across the board, including for MLL.
- For best results with MLL, turn SMT off and use Windows 10.
- For worst results, leave SMT enabled and play on Windows 7.
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