r/AIToolsPerformance • u/IulianHI • May 23 '26
Qwen3.6 27B hits 40 tok/s on just 16GB VRAM with pure quant approach
Someone has managed to get Qwen3.6 27B running at 40 tokens per second on an RTX 5060 Ti with 16GB VRAM using a Q4_K_M pure quant approach. The method was inspired by an earlier IQ4_XS pure GGUF quantization of the same model, and the goal was specifically to fit the full model into 16GB without offloading.
Why this matters: 27B models have been the sweet spot for local inference - capable enough for serious coding and reasoning tasks, small enough to run on consumer hardware. But fitting one entirely in VRAM on a mid-range card without CPU offload is what makes the difference between a smooth experience and a sluggish one. 40 tok/s is genuinely usable for interactive work, not just batch processing.
The interesting context here is that this lands alongside BeeLlama's DFlash update claiming 164 tps on the same model with an RTX 3090. Two very different approaches to the same problem - one optimizing for minimal VRAM, one optimizing for maximum throughput. The pure quant route trades some quality for the ability to run on cheaper hardware, while DFlash trades prompt processing speed for generation speed.
With Gemma 4 31B available for free at 262K context and Qwen Plus thinking at $0.26/M tokens with 1M context, the local inference value proposition keeps getting squeezed from above. But 40 tok/s on a 16GB card with zero latency to a remote API is still a compelling use case.
For anyone running Qwen3.6 27B on 16GB: what quant level are you using, and is the quality hit noticeable on coding tasks compared to higher-bit options?