Can I Run Granite 4.1 3B on NVIDIA RTX 6000 Ada Generation?
Written by Jakub Rusinowski · Last updated July 21, 2026
Yes. Granite 4.1 3B needs 3.5 GB at 8K context (1.8 GB weights + 1.7 GB KV cache/overhead) at Q4_K_M and the NVIDIA RTX 6000 Ada Generation has 48 GB, leaving about 44.5 GB of headroom, at roughly 210 tok/s (estimated) with room for up to 128K of context.
See what else this hardware can run →
The numbers
| Model | Granite 4.1 3B |
| Parameters | 3B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 3.5 GB |
| NVIDIA RTX 6000 Ada Generation VRAM | 48 GB |
| Verdict | Runs |
| Max context | 128K |
| Estimated speed | ~210 tok/s |
Granite 4.1 3B on the NVIDIA RTX 6000 Ada Generation: VRAM by quantization
| Quant | VRAM needed | Fits 48 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 7.6 GB | ✓ Yes | 128K | — |
| Q8_0 | 4.8 GB | ✓ Yes | 128K | — |
| Q6_K | 4.1 GB | ✓ Yes | 128K | — |
| Q5_K_M | 3.8 GB | ✓ Yes | 128K | — |
| Q4_K_M | 3.5 GB | ✓ Yes | 128K | — |
| Q3_K_M | 2.9 GB | ✓ Yes | 128K | — |
| Q2_K | 2.6 GB | ✓ Yes | 128K | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 48 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 RTX 6000 Ada Generation: 8K 3.5 GB · 32K 6 GB · 128K 16 GB. Every window this model publishes still fits 48 GB.
What to do next
Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.
No compatible GPU? Granite 4.1 3B on 8 GB of system RAM, CPU only: runs comfortably.
Running Granite 4.1 3B on this card:
At 2 hrs/day, buying (~$6,799) beats renting at $0.34/hr after about 27.8 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.
Other IBM Granite 4.1 sizes on the NVIDIA RTX 6000 Ada Generation
- Granite 4.1 30B — runs (33.5 GB)
- Granite 4.1 8B — runs (6.8 GB)
Granite 4.1 3B on nearby hardware
- Intel Arc B580 (12 GB) — runs
- Apple M1 Max (64 GB) — runs
All IBM Granite 4.1 sizes on the NVIDIA RTX 6000 Ada Generation | Granite 4.1 3B model page | NVIDIA RTX 6000 Ada Generation GPU page | VRAM calculator | Check your hardware