Head to head · October 2026
RTX 5090 vs RTX PRO 6000: which is better for local AI?
32GB against 96GB, 1,792 against 1,792 GB/s. What each runs, how fast, and which one to buy.
The verdict
The RTX PRO 6000 has 64GB more memory (96GB vs 32GB), so it runs larger models, such as gpt-oss-120b, without offloading. Generation speed is within about 10% between the two. The RTX 5090 costs about $11,700 less ($4,300 vs $16,000).
- Get the RTX 5090 if you want the most for your money.
- Get the RTX PRO 6000 if you want to run bigger models or use longer context.
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Performance
Model by model
Estimated single-user generation speed for popular models, at the best quantization each card can hold with 8K context.
| Model | RTX 5090 | RTX PRO 6000 |
|---|---|---|
| Llama 3.1 8B Instruct | ~145 tok/sQ8_0 | ~145 tok/sQ8_0 |
| Qwen3 14B | ~84 tok/sQ8_0 | ~84 tok/sQ8_0 |
| gpt-oss-20b | ~190 tok/sMXFP4 | ~190 tok/sMXFP4 |
| Qwen3 30B-A3B (2507) | ~175 tok/sQ6_K | ~150 tok/sQ8_0 |
| Gemma 3 27B | ~60 tok/sQ6_K | ~48 tok/sQ8_0 |
| Qwen3 32B | ~58 tok/sQ5_K_M | ~40 tok/sQ8_0 |
| Llama 3.3 70B Instruct | ~2.7 tok/sQ4_K_M Partial offload | ~19 tok/sQ8_0 |
| gpt-oss-120b | ~25 tok/sMXFP4 Partial offload | ~170 tok/sMXFP4 |
Estimates from our bandwidth model; see methodology. Measured results, where we have them, are on each GPU's page.
Capacity
Models only one of them can run
Only on the RTX 5090
Nothing extra: everything that runs on this card also runs on the other one.
Best models for the RTX 5090Only on the RTX PRO 6000
Best models for the RTX PRO 6000Specifications
Spec by spec
| Spec | RTX 5090 | RTX PRO 6000 |
|---|---|---|
| Memory | 32GB GDDR7 | 96GB GDDR7 ECC● |
| Bandwidth | 1,792 GB/s | 1,792 GB/s |
| Power | 575W● | 600W |
| Price | ~$4,300● | ~$16,000 |
| Price per GB | $134● | $167 |
| Architecture | Blackwell | Blackwell |
| Released | 2025 | 2025 |
| Software | CUDA, Vulkan | CUDA, Vulkan |
Our take
Bottom line on each
The fastest consumer card for local LLMs, but shortage pricing has more than doubled its cost.
The most memory on a single PCIe card at RTX 5090-class bandwidth, at a very steep price.
Frequently asked questions
Is the RTX 5090 or RTX PRO 6000 better for running LLMs?
The RTX PRO 6000 has 64GB more memory (96GB vs 32GB), so it runs larger models, such as gpt-oss-120b, without offloading. Generation speed is within about 10% between the two. The RTX 5090 costs about $11,700 less ($4,300 vs $16,000).
Can the RTX 5090 and RTX PRO 6000 run the same models?
No. The RTX PRO 6000 fits models the RTX 5090 can only run with CPU offload, including gpt-oss-120b, Qwen3.5 122B-A10B, and GLM-4.5-Air.
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