作者： Jakub Rusinowski · 最后更新： 2026年9月11日
Yes, but it's tight — Devstral-2 123B at Q4_K_M needs 74.26125 GB of the NVIDIA H100 80GB's 80 GB, leaving only ~5.7 GB, ~21 tok/s (est.) with room for up to 8K context.
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| VRAM | 80 GB |
| Memory Bandwidth | 2000 GB/s |
| Quant | VRAM needed | Fits 80 GB? | Max context |
|---|---|---|---|
| F16 | 248.2 GB | ✗ No | — |
| Q8_0 | 132.9 GB | ✗ No | — |
| Q6_K | 103.1 GB | ✗ No | — |
| Q5_K_M | 89.4 GB | ✗ No | — |
| Q4_K_M | 76.5 GB | ✓ Yes | 8K |
| Q3_K_M | 54.7 GB | ✓ Yes | 64K |
| Q2_K | 42.7 GB | ✓ Yes | 64K |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 80 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
| Devstral-2 123B | Q4_K_M · 74.26125 GB · ~21 tok/s (est.) |
| Devstral Small 2505 24B | Q4_K_M · 14.49 GB · ~90 tok/s (est.) |
| Devstral Small 2 24B | Q4_K_M · 14.49 GB · ~89 tok/s (est.) |
| Devstral-2 22B (Unverified Listing) | Q4_K_M · 13.2825 GB · ~95 tok/s (est.) |
At 2 hrs/day, buying (~$25,000) beats renting at $0.77/hr after about 45.1 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Yes, but it's tight — Devstral-2 123B at Q4_K_M needs 74.26125 GB of the NVIDIA H100 80GB's 80 GB, leaving only ~5.7 GB, ~21 tok/s (est.) with room for up to 8K context.
Devstral-2 123B at Q4_K_M quantization (74.26125 GB), estimated ~21 tokens/sec, up to 8K context.
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Devstral-2 123B | 74.3 GB | Runs | ~21 tok/s |
| Devstral Small 2505 24B | 14.5 GB | Runs | ~90 tok/s |
| Devstral Small 2 24B | 14.5 GB | Runs | ~89 tok/s |
| Devstral-2 22B (Unverified Listing) | 13.3 GB | Runs | ~95 tok/s |
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