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

A user successfully overclocked a CMP 170HX 40GB graphics card, increasing its memory bandwidth from 1,386.2 GB/s to 1,890.1 GB/s, a 36.4% improvement. This overclocking also boosted Qwen 3.8 27B token generation from 110 T/S to 202 T/S, with no other configuration changes. The GPU wattage reached 300 watts, and temperatures were slightly lower, suggesting potential benefits for other owners of this card.

Unlike typical overclocking reports, this one details a 36.4% memory bandwidth increase on a CMP 170HX, specifically showing its impact on Qwen 3.8 27B token generation.