NVIDIA · 192 GB HBM3e · 8000 GB/s bandwidth ·
Tencent · 295.0B (active 21.0B) · MoE · model ctx up to 256K
Yes — the B200 192GB SXM (192 GB HBM3e) can run Hy3. At Q4 with the default 8K context it needs ≈ 167.45 GB VRAM (weights 162.25 GB + KV cache 4.2 GB + 1 GB runtime overhead), which fits within 192 GB. Decode at Q4/8K: ≈ 242.4 tok/s (estimated, batch 1). FP16 needs ≈ 595.2 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
165.35 GB
Yes
242.4est.
Q4
8K default
167.45 GB
Yes
242.4est.
Q4
32K
180.05 GB
Yes
242.4est.
FP16
4K
593.1 GB
No
20.0est.
FP16
8K default
595.2 GB
No
19.8est.
FP16
32K
607.8 GB
No
19.0est.
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).