RTX PRO 4500 Blackwell
RTX PRO 4500 Blackwell has 32 GB of VRAM at 896 GB/s — about 29.76 GiB usable after driver and compositor overhead. 1863 of 2118 indexed models fit at 64K context with f16 KV.
What fits at 64K context
| Model | Best quant | Params | Weights● | KV● | Total in memory◐ | Headroom◐ | tok/s◐ |
|---|---|---|---|---|---|---|---|
| Bernini-R | Q8_0 | 14.3B | 28.71 GiB | 0.00 GiB | 29.76 GiB | 0.00 GiB | 18±22% |
| Qwen3-Coder-Next-Opus-4.6-Reasoning-DistilledMoE | Q2_K | — | 27.26 GiB | 1.50 GiB | 29.75 GiB | 0.01 GiB | 77±37% |
| Qwen3-Next-80B-A3B-InstructMoE | UD-IQ1_M | 81.3B | 22.73 GiB | 6.00 GiB | 29.72 GiB | 0.04 GiB | 37±37% |
| Trinity-2-Codestral-22B-v0.2 | Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| Cydonia-v1.3-Magnum-v4-22B | I1-Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| Mistral-Small-22B-ArliAI-RPMax-v1.1 | I1-Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| Mistral-Small-Drummer-22B | Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| magnum-v4-22b | I1-Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| Codestral-22B-v0.1-hf | Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| Codestral-22B-v0.1 | Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 18±22% |
| dolphin-2.9.1-mixtral-1x22bMoE | I1-Q5_K_M | 22.2B | 14.64 GiB | 14.00 GiB | 29.70 GiB | 0.06 GiB | 10±37% |
| Voxtral-Small-24B-2507 | Q6_K | 24.3B | 18.57 GiB | 10.00 GiB | 29.69 GiB | 0.07 GiB | 18±22% |
| gemma-4-26B-A4B-itMoE | Q8_0 | 26.5B | 25.89 GiB | 2.79 GiB | 29.67 GiB | 0.09 GiB | 18±22% |
| Gemma-4-Gembrain-X-Core-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Gembrain-X-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-31B-Isometry-Fabled-Persona | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Versipellis-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma4-Gutenberg-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| G4-MeroMero-31B-uncensored-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Novelist-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Wanabi-Gemma4-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| G4-Alice-v1.2-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Agares-31B-v1 | I1-Q4_K_M | 30.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma4-Gutenberg-31B-Heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-Ortenzya-The-Creative-Wordsmith-31B-it-uncensored-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Gemsicle-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Gembrain-31B-it-uncensored-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Melinoe-Gemma4-31B-VL-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| G4-MeroMero-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Glistening-Gem-31B-v1.0 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Melinoe-Gemma4-31B-VL | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-31B-Storymaxxed3 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Huihui-gemma-4-31B-it-qat-q4_0-unquantized-abliterated | I1-Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-Queen-it-qat-q4_0-unquantized | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-qat-q4_0-unquantized-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-AssGuard-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| copywriter-gemma4-31b | I1-Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-heretic-finetune | I1-Q4_K_M | 30.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Garnet-V2-31B-it-ultra-uncensored-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-Claude-Opus-Distill-v2 | Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-abliterated-v3 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Harmonia-31B-uncensored-heretic | Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-noloop | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Webs-Sejong-31B-v7 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Lilith-31B-v1.0 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| JGOS-31B-Think | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-Mergemaxxed | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| K1-v6-zero | I1-Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-uncensored-heretic | Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Queen-31B-it-uncensored-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Sphinsikus-Chronist-31B | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-heretic | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma4-31B-Finetuned-V2 | I1-Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-31B-storymaxxed | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-31B-Fable-5-Agent-Distill | Q4_K_M | 32.7B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-uncensored | Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-31B-storymaxxed2 | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Gemma-4-Giftige-Blume-31B-v2 | Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-Grand-Horror-X-INTENSE-HERETIC-UNCENSORED-Thinking | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| gemma-4-31B-it-Mystery-Fine-Tune-HERETIC-UNCENSORED-Thinking | I1-Q4_K_M | 31.3B | 17.40 GiB | 11.17 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
Speed is modeled, not measured: decode is memory-bandwidth bound, so tokens per second is bytes read per token against achievable bandwidth. Mixture-of-experts models carry a wider band because only the routed experts are read each step, and few have been measured publicly.
Measured on this card
| Workload◍ | Median | Middle 50% | Runs |
|---|---|---|---|
| Prompt processing | 4623.70 tok/s | 3136.07–6649.93 | 24 |
| Text generation | 155.65 tok/s | 81.58–169.65 | 20 |
Aggregated from community-submitted runs, so the spread is wide by nature — it covers different models, resolutions, step counts and settings, not one controlled configuration. Read the middle 50% rather than the median alone. These figures are reproduced with attribution from llama.cpp-discussion-15013.
Questions people ask
- What AI models can a RTX PRO 4500 Blackwell run?
- 1863 of 2118 indexed open-weight models fit a RTX PRO 4500 Blackwell at 65,536 context with f16 KV cache, the largest being Bernini-R at Q8_0. That covers text, vision-language, image, video and speech models.
- How much usable memory does a RTX PRO 4500 Blackwell actually have?
- Its nameplate is 32 GB, but about 29.76 GiB is available to a model once driver and compositor overhead is accounted for.
- Is a RTX PRO 4500 Blackwell fast for local AI?
- Its memory bandwidth is 896 GB/s, and that figure — not teraflops — is what governs token generation speed. Capacity decides what you can run; bandwidth decides how fast it runs.