r/LocalLLaMA · · 1 min read

Reached 1.89 TB/s memory bandwidth overclocking the CMP 170hx

Mirrored from r/LocalLLaMA for archival readability. Support the source by reading on the original site.

Overclocking the CMP 170HX 40GB I was able to get the memory bandwidth from 1,386.2 GB/s to 1,890.1 GB/s, that's a +36.4% increase.

Qwen 3.8 27B token generation jumped from 110 T/S to 202 T/S, same config, nothing changed except the overclock.

Just throwing this out there for whoever owns one of these cards. It's good to look into overclocking them as it's potential is severely cut down.

Edit: GPU wattage is at 300 watts GPU temps are slightly lower now

submitted by /u/Feralzi
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