AMD · 192 GB HBM3 · 5300 GB/s bandwidth ·
Mistral · 128.0B · model ctx up to 256K
Yes — the MI300X 192GB (192 GB HBM3) can run Mistral-Medium-3.5-128B. At Q4 with the default 8K context it needs ≈ 97.0 GB VRAM (weights 70.4 GB + KV cache 25.6 GB + 1 GB runtime overhead), which fits within 192 GB. Decode at Q4/8K: ≈ 26.3 tok/s (estimated, batch 1). FP16 needs ≈ 282.6 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.
Fit & speed by quant and context
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
84.2 GB
Yes
26.3est.
Q4
8K default
97.0 GB
Yes
26.3est.
Q4
32K
173.8 GB
Yes
26.3est.
FP16
4K
269.8 GB
No
10.5est.
FP16
8K default
282.6 GB
No
9.6est.
FP16
32K
359.4 GB
No
5.9est.
Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured
anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s
means the model is far beyond this card (offload-only territory).