PSA: Throttle GPU Power Limits for Major Energy Savings with Minimal Inference Performance Loss
r/LocalLLaMA top day·yesterday·Hardware
A Reddit user reminds the local LLM community that throttling GPU power limits offers outsized energy savings with minimal performance cost. On dual Radeon VII cards, cutting power from 250W to 100W per card resulted in less than 10% drop in inference speed. LLM inference is memory-bound rather than compute-bound, making it uniquely tolerant of reduced GPU clock speeds compared to training or rendering tasks.
