KV cache quant benchmarks: q5 & q6 are underrated, q8/q4 is bad, TCQ has a niche
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In three linesComprehensive benchmark of 38 KV quantization pairs on Qwen 3.6 27B with 64k-128k context. Q5_0 and Q5_1 underrated, Q8_0/Q4_* overrated. Recommendation: Q8_0/Q6_0 or Q8_0/Q5_1 for high-end, Q6_0/Q5_0 for balance, Q5_0/Q5_0 for tight VRAM.Read source
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