RAM speed test: 6000 vs 4800 MT/s makes no difference for local image gen
PixelLunarJelly · reddit · 2026-11-15
A user, facing system instability with EXPO at 6000 MT/s, benchmarked DDR5 6000 vs 4800 MT/s for local AI image generation on a 4080 Super 16GB + 2×16GB DDR5 rig — consistent workflows, PC restarted between runs, testing Krea 2, Qwen 2.1, and H3.
Findings: no difference between frequencies. Krea 2 and Qwen 2.1 likely fit entirely in VRAM; H3 probably doesn't fit, causing wildly varying times (13–32 min), but unrelated to RAM speed. Minor prompt changes slightly increase generation time. Practical takeaway: dropping to 4800 MT/s for stability costs nothing in image-gen performance.
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