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Deterministic VRAM fit · not a benchmark
Find a GPU for your AI model
Choose a model, quantization and context size. The calculator returns GPUs that can hold the estimated memory entirely in VRAM, then maps those chips to real product SKUs and Amazon listings. This does not rank speed.
Assumptions used
- Model
- Mixtral 8x7B Instruct
- Quantization
- Q4
- Context
- 8K
- Required VRAM
- 31.3 GB
3 canonical GPUs fit entirely in VRAM under these assumptions.
Lowest-cost full-VRAM option
Sorted by lowest current Amazon price among GPUs that fit entirely in VRAM. This is not a performance ranking.
NVIDIA
NVIDIA RTX 6000 48 GB
- GPU VRAM
- 48 GB advertised
- Required VRAM
- 31.3 GB
- Usable GPU VRAM
- 43.2 GB
- VRAM headroom
- 11.9 GB — leftover usable memory after the calculated requirement, not a speed ranking
- Compatible
- Yes — fits entirely in VRAM
- Product SKUs
- 1 mapped · 1 Amazon-matched
- Amazon
- $20888.00 current Amazon price
More VRAM headroom
Sorted by leftover usable VRAM after the calculated requirement. Headroom is not tokens/sec.
NVIDIA
NVIDIA RTX 6000 48 GB
- GPU VRAM
- 48 GB advertised
- Required VRAM
- 31.3 GB
- Usable GPU VRAM
- 43.2 GB
- VRAM headroom
- 11.9 GB — leftover usable memory after the calculated requirement, not a speed ranking
- Compatible
- Yes — fits entirely in VRAM
- Product SKUs
- 1 mapped · 1 Amazon-matched
- Amazon
- $20888.00 current Amazon price
NVIDIA
NVIDIA RTX 8000 48 GB
- GPU VRAM
- 48 GB advertised
- Required VRAM
- 31.3 GB
- Usable GPU VRAM
- 43.2 GB
- VRAM headroom
- 11.9 GB — leftover usable memory after the calculated requirement, not a speed ranking
- Compatible
- Yes — fits entirely in VRAM
- Product SKUs
- 1 mapped · 0 Amazon-matched
- Amazon
- Check availability
NVIDIA
NVIDIA RTX A6000 48 GB
- GPU VRAM
- 48 GB advertised
- Required VRAM
- 31.3 GB
- Usable GPU VRAM
- 43.2 GB
- VRAM headroom
- 11.9 GB — leftover usable memory after the calculated requirement, not a speed ranking
- Compatible
- Yes — fits entirely in VRAM
- Product SKUs
- 2 mapped · 0 Amazon-matched
- Amazon
- Check availability