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. 1997 of 2118 indexed models fit at 16K context with f16 KV.
What fits at 16K 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% |
| Salience-1.5-ProMoE | Q6_K | 36.0B | 28.43 GiB | 0.31 GiB | 29.75 GiB | 0.01 GiB | 97±37% |
| Qwable-v1MoE | Q6_K | 36.0B | 28.43 GiB | 0.31 GiB | 29.75 GiB | 0.01 GiB | 97±37% |
| T-SearchMoE | Q6_K | 36.0B | 28.43 GiB | 0.31 GiB | 29.75 GiB | 0.01 GiB | 97±37% |
| Kimi-Linear-48B-A3B-InstructMoE | Q4_K_L | 49.1B | 28.26 GiB | 0.47 GiB | 29.74 GiB | 0.02 GiB | 18±22% |
| OLMo-2-0325-32B | Q6_K | 32.2B | 24.63 GiB | 4.00 GiB | 29.73 GiB | 0.03 GiB | 18±22% |
| Qwen3-Next-80B-A3B-ThinkingMoE | Q2_K_L | 81.3B | 27.24 GiB | 1.50 GiB | 29.73 GiB | 0.03 GiB | 77±37% |
| Qwen3-Next-80B-A3B-InstructMoE | Q2_K_L | 81.3B | 27.24 GiB | 1.50 GiB | 29.73 GiB | 0.03 GiB | 77±37% |
| Qwen3-Coder-NextMoE | Q2_K | 79.7B | 27.22 GiB | 1.50 GiB | 29.71 GiB | 0.05 GiB | 77±37% |
| Qwen3.5-88BMoE | I1-Q2_K_S | 87.7B | 28.30 GiB | 0.38 GiB | 29.70 GiB | 0.06 GiB | 86±37% |
| medgemma-27b-it | Q8_0 | 28.8B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| gemma-3-27b-it-abliterated-refined-vision | Q8_0 | 27.4B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| gemma-3-27b-it-abliterated | Q8_0 | 27.4B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| Nidum-Gemma-3-27B-it-Uncensored | Q8_0 | 27.4B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| gemma-3-27b-it | Q8_0 | 27.4B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| Unbound-v1.12.0-27B | Q8_0 | 27.4B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| medgemma-27b-text-it | Q8_0 | 27.0B | 26.74 GiB | 1.86 GiB | 29.68 GiB | 0.08 GiB | 18±22% |
| Gemma4-Gutenberg-31B | Q6_K | 31.3B | 24.89 GiB | 3.67 GiB | 29.64 GiB | 0.12 GiB | 18±22% |
| gemma-4-31B-it | Q6_K | 31.3B | 24.89 GiB | 3.67 GiB | 29.64 GiB | 0.12 GiB | 18±22% |
| Gemma4-Gutenberg-31B-Heretic | Q6_K | 31.3B | 24.89 GiB | 3.67 GiB | 29.64 GiB | 0.12 GiB | 18±22% |
| Equinox-31B | Q6_K | 31.3B | 24.89 GiB | 3.67 GiB | 29.64 GiB | 0.12 GiB | 18±22% |
| gemma-4-31B-it-SDFT-Heretic-RP | Q6_K | 30.7B | 24.89 GiB | 3.67 GiB | 29.64 GiB | 0.12 GiB | 18±22% |
| GPT-NeoX-20B-Erebus | I1-Q4_1 | 20.6B | 12.03 GiB | 16.50 GiB | 29.63 GiB | 0.13 GiB | 18±22% |
| command-r-35b-writer-v2 | I1-IQ1_M | 35.0B | 8.52 GiB | 20.00 GiB | 29.62 GiB | 0.14 GiB | 18±22% |
| xLAM-8x7b-rMoE | Q4_K_L | 46.7B | 26.59 GiB | 2.00 GiB | 29.62 GiB | 0.14 GiB | 29±37% |
| Darwin-35B-A3B-OpusMoE | Q6_K_L | 36.0B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| Aurora-Code-1MoE | Q6_K_L | 34.7B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| grug-35b-v2MoE | Q6_K_L | 35.1B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| grug-35bMoE | Q6_K_L | 35.1B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| WorldSim-Opus-3.6-35B-A3BMoE | Q6_K_L | 35.1B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| Qwen3.6-35B-A3B-AnkoMoE | Q6_K_L | 35.1B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| KAT-Coder-V2.5-DevMoE | Q6_K_L | 34.7B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| Ornith-1.0-35BMoE | Q6_K_L | 34.7B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| Nex-N2-miniMoE | Q6_K_L | 35.1B | 28.22 GiB | 0.31 GiB | 29.54 GiB | 0.22 GiB | 98±37% |
| dolphin-2.6-mixtral-8x7bMoE | I1-Q4_K_M | 46.7B | 26.49 GiB | 2.00 GiB | 29.53 GiB | 0.23 GiB | 30±37% |
| Nous-Hermes-2-Mixtral-8x7B-DPOMoE | Q4_K_M | 46.7B | 26.49 GiB | 2.00 GiB | 29.53 GiB | 0.23 GiB | 30±37% |
| Mixtral-8x7B-Instruct-v0.1MoE | Q4_K_M | 46.7B | 26.49 GiB | 2.00 GiB | 29.53 GiB | 0.23 GiB | 30±37% |
| dolphin-2.5-mixtral-8x7bMoE | Q4_K_M | 46.7B | 26.49 GiB | 2.00 GiB | 29.53 GiB | 0.23 GiB | 30±37% |
| Mixtral-8x7B-v0.1MoE | Q4_K_M | 46.7B | 26.49 GiB | 2.00 GiB | 29.53 GiB | 0.23 GiB | 30±37% |
| Qwen3.6-27B-Fable-5-Experimental | Q8_0 | 27.8B | 27.42 GiB | 1.00 GiB | 29.49 GiB | 0.27 GiB | 18±22% |
| Open_Gpt4_8x7B_v0.2MoE | Q4_K_M | 46.7B | 26.43 GiB | 2.00 GiB | 29.47 GiB | 0.29 GiB | 30±37% |
| Noromaid-20b-v0.1.1 | I1-Q3_K_M | 20.0B | 9.04 GiB | 19.38 GiB | 29.46 GiB | 0.30 GiB | 18±22% |
| Nethena-20B | Q3_K_M | 20.0B | 9.03 GiB | 19.38 GiB | 29.45 GiB | 0.31 GiB | 18±22% |
| Magistral-Small-2509-Vision | Q6_K_L | 24.0B | 25.83 GiB | 2.50 GiB | 29.44 GiB | 0.32 GiB | 18±22% |
| Hypernova-60B-2605MoE | I1-IQ3_XXS | 58.7B | 27.90 GiB | 0.52 GiB | 29.41 GiB | 0.35 GiB | 80±37% |
| Seed-OSS-36B-Instruct | Q5_K_L | 36.2B | 24.29 GiB | 4.00 GiB | 29.39 GiB | 0.37 GiB | 18±22% |
| Hermes-4.3-36B | Q5_K_L | 36.2B | 24.29 GiB | 4.00 GiB | 29.39 GiB | 0.37 GiB | 18±22% |
| IQuest-Coder-V1-40B-Instruct | I1-Q4_1 | 39.8B | 23.24 GiB | 5.00 GiB | 29.34 GiB | 0.42 GiB | 18±22% |
| gemma-4-E4B-it-Uncensored-MAX | F32 | 8.0B | 28.02 GiB | 0.29 GiB | 29.33 GiB | 0.43 GiB | 18±22% |
| Qwen3.6-28BMoE | Q8_0 | 28.2B | 28.00 GiB | 0.31 GiB | 29.32 GiB | 0.44 GiB | 92±37% |
| Apertus-70B-Instruct-2509 | UD-IQ2_M | 70.6B | 23.12 GiB | 5.00 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Gemma-4-31B-Isometry-RP | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Gemma-4-Dark-Gemistry-31B | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Prosopon-31B | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Gemma-4-Novelist-Eclipse-31B | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Giftige-Blume-31B-v1-StyleSwap | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| G4-MeroMero-31B-StyleSwap | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Gemma-4-31B-StyleTune-heretic-ara | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Pantheon-Reasoning-31B-1.1 | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 GiB | 18±22% |
| Gemma-4-31B-StyleTune | I1-Q6_K | 32.7B | 24.55 GiB | 3.67 GiB | 29.30 GiB | 0.46 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?
- 1997 of 2118 indexed open-weight models fit a RTX PRO 4500 Blackwell at 16,384 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.