❌Won't fitfp16 · 4K ctx · batch 1
Does RTX 5090 run Mixtral-8x7B-v0.1? No at fp16.
At fp16 precision, Mixtral-8x7B-v0.1 (47 B MoE parameters) needs roughly 95.3 GB of VRAM. RTX 5090 only has 32 GB, short by 63.3 GB. INT4 quantization brings it down to 25.6 GB — that fits. For fp16 accuracy, move to H200.
298%
VRAM
Won't fit
Estimated VRAM (fp16)
95.3 GB
of 32 GB on RTX 5090· 63.3 GB short
Tok/sec
87
TFTT
410ms
Power
411W
Rent on GPUniq marketplace
RTX 5090
Live prices from verified providers · billed hourly, no commitment.
Memory breakdown (fp16)
Quantization comparison
Lower precision = less VRAM with a small quality trade-off. Quality order: FP16 > INT8 > INT4.
| Precision | VRAM | Utilisation | Fits on RTX 5090? |
|---|---|---|---|
| FP16 (full precision) | 95.3 GB | 298% | ❌Won't fit |
| INT8 (8-bit) | 48.8 GB | 153% | ❌Won't fit |
| INT4 / Q4 (4-bit) | 25.6 GB | 80% | ✅Runs well |
Frequently asked
- Can RTX 5090 run Mixtral-8x7B-v0.1?
- Not at fp16 — Mixtral-8x7B-v0.1 needs about 95.3 GB while RTX 5090 has 32 GB. It fits at INT4 quantization (25.6 GB) with some accuracy trade-off. For full precision, use H200 instead.
- How much VRAM does Mixtral-8x7B-v0.1 use?
- About 95.3 GB at fp16, 25.6 GB at INT4 (for a 4K context, batch size 1). Longer contexts add to KV cache size; larger batches increase activations.
- What's the fastest way to run Mixtral-8x7B-v0.1 on RTX 5090?
- Use a production inference engine like vLLM, SGLang, or TensorRT-LLM with paged attention — they cut KV cache 2–3× vs the naive estimate and batch multiple requests efficiently. For RTX 5090, enable Flash Attention 2.
- Where can I rent a RTX 5090?
- GPUniq aggregates live RTX 5090 offers from verified providers. You can deploy an instance in about a minute and pay hourly with no commitment.
Other GPUs for Mixtral-8x7B-v0.1
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