Can I Run Devstral Small 2505 24B on NVIDIA GeForce RTX 4070 Super?
Written by Jakub Rusinowski · Last updated September 29, 2026
Not at Q4_K_M — that needs 16.6 GB at 8K context and the NVIDIA GeForce RTX 4070 Super has 12 GB. Drop to Q2_K and it fits in 10 GB, with up to 16K of context.
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The numbers
| Model | Devstral Small 2505 24B |
| Parameters | 24B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 16.6 GB |
| NVIDIA GeForce RTX 4070 Super VRAM | 12 GB |
| Verdict | Runs at a lower quant |
| Fits at | Q2_K (10 GB) |
| Max context | 16K |
Devstral Small 2505 24B on the NVIDIA GeForce RTX 4070 Super: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 50.1 GB | ✗ No | — | — |
| Q8_0 | 27.6 GB | ✗ No | — | — |
| Q6_K | 21.8 GB | ✗ No | — | — |
| Q5_K_M | 19.2 GB | ✗ No | — | — |
| Q4_K_M | 16.6 GB | ✗ No | — | — |
| Q3_K_M | 12.4 GB | ✗ No | — | — |
| Q2_K | 10 GB | ✓ Yes | 16K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 12 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA GeForce RTX 4070 Super: 8K 16.6 GB ✗ · 32K 20.7 GB ✗ · 128K 36.8 GB ✗. Past 8K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
What to do next
Quantize to Q2_K. That is the cheapest fix — it costs some quality but no money.
No compatible GPU? Devstral Small 2505 24B on 16 GB of system RAM, CPU only: runs, but it is tight.
Running Devstral Small 2505 24B on this card:
Devstral Small 2505 24B needs ~17 GB but this GPU has 12 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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Other Devstral sizes on the NVIDIA GeForce RTX 4070 Super
- Devstral-2 123B — does not fit (77.9 GB)
- Devstral Small 2 24B — runs at a lower quant (16.6 GB)
Devstral Small 2505 24B on nearby hardware
- Intel Arc B570 (10 GB) — does not fit
- NVIDIA GeForce RTX 5080 (16 GB) — runs at a lower quant
All Devstral sizes on the NVIDIA GeForce RTX 4070 Super | Devstral Small 2505 24B model page | NVIDIA GeForce RTX 4070 Super GPU page | VRAM calculator | Check your hardware