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. 2022 of 2118 indexed models fit at 8K context with q8_0 KV.
What fits at 8K 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% |
| Maenad-70B | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| DeepSeek-R1-Distill-Llama-70B-Uncensored-v2-Unbiased-Reasoner | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Rombos-LLM-70b-Llama-3.3 | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| L3.3-Electra-R1-70b | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Latxa-Llama-3.1-70B-Instruct-v2 | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Llama-3.3_70_b_uncensored_continued | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Llama-3.3-70B-Instruct-abliterated | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| grok-oss-Revenant-70B | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Llama-3.1-Nemotron-70B-Instruct-HF | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| L3.3-70B-Euryale-v2.3 | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Hermes-3-Llama-3.1-70B | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Hermes-4-70B-heretic | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Llama-3.3-70B-Instruct | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Llama-3.1-70B | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Anubis-70B-v1.2 | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Hermes-4-70B | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Golem-70B-v1b | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| DeepSeek-R1-Distill-Llama-70B-abliterated | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| DeepSeek-R1-Distill-Llama-70B-heretic | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| llama-3-firefunction-v2 | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Legion-V2.1-LLaMa-70B | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Assistant_Pepe_70B | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Tess-R1-Limerick-Llama-3.1-70B | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Infinity-Instruct-7M-Gen-Llama3_1-70B | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| New-Dawn-Llama-3-70B-32K-v1.0 | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Meta-Llama-3-70B-Instruct-abliterated-v3.5 | I1-IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Athene-70B | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| L3.3-70B-Magnum-Diamond | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Meta-Llama-3-70B-Instruct | IQ3_XS | 70.6B | 27.29 GiB | 1.33 GiB | 29.75 GiB | 0.01 GiB | 18±22% |
| Salience-1.5-ProMoE | Q6_K_L | 36.0B | 28.66 GiB | 0.08 GiB | 29.75 GiB | 0.01 GiB | 105±37% |
| Qwable-v1MoE | Q6_K_L | 36.0B | 28.66 GiB | 0.08 GiB | 29.75 GiB | 0.01 GiB | 105±37% |
| T-SearchMoE | Q6_K_L | 36.0B | 28.66 GiB | 0.08 GiB | 29.75 GiB | 0.01 GiB | 105±37% |
| Melody1437-27B | Q3_K_M | 27.8B | 28.40 GiB | 0.27 GiB | 29.73 GiB | 0.03 GiB | 18±22% |
| Nous-Hermes-Llama2-70b | Q2_K | 69.0B | 27.27 GiB | 1.33 GiB | 29.72 GiB | 0.04 GiB | 18±22% |
| llama2_70b_chat_uncensored | Q2_K | 69.0B | 27.27 GiB | 1.33 GiB | 29.72 GiB | 0.04 GiB | 18±22% |
| Xwin-LM-70b-V0.1 | Q2_K | 69.0B | 27.27 GiB | 1.33 GiB | 29.72 GiB | 0.04 GiB | 18±22% |
| Llama-2-70b-chat-hf | Q2_K | 69.0B | 27.27 GiB | 1.33 GiB | 29.72 GiB | 0.04 GiB | 18±22% |
| command-r-35b-writer-v2 | I1-Q5_K_M | 35.0B | 23.29 GiB | 5.31 GiB | 29.71 GiB | 0.05 GiB | 18±22% |
| Qwen3-53B-A3B-2507-THINKING-TOTAL-RECALL-v2-MASTER-CODERMoE | I1-Q4_0 | 53.0B | 28.02 GiB | 0.70 GiB | 29.71 GiB | 0.05 GiB | 64±37% |
| Qwen2.5-7B-Instruct-1M | F32 | 7.6B | 28.38 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| DeepSeek-R1-Distill-Qwen-7B | F32 | 7.6B | 28.38 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| UI-TARS-7B-DPO | F32 | 8.3B | 28.38 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Qwen2-7B-Instruct | F32 | 7.6B | 28.38 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Hercules-5.0-Qwen2-7B | F32 | 7.6B | 28.38 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| Kepler-8B-Instruct-v2 | F16 | 7.6B | 28.37 GiB | 0.23 GiB | 29.66 GiB | 0.10 GiB | 18±22% |
| MiniCPM-o-2_6 | F32 | 8.7B | 28.37 GiB | 0.23 GiB | 29.65 GiB | 0.11 GiB | 18±22% |
| Qwen3-42B-A3B-2507-Thinking-Abliterated-uncensored-TOTAL-RECALL-v2-Medium-MASTER-CODERMoE | I1-Q5_K_M | 42.4B | 28.05 GiB | 0.56 GiB | 29.60 GiB | 0.16 GiB | 73±37% |
| Mixtral-8x22B-Instruct-v0.1MoE | IQ1_S | 141B | 27.61 GiB | 0.93 GiB | 29.60 GiB | 0.16 GiB | 32±37% |
| Mixtral-8x22B-v0.1MoE | IQ1_S | 141B | 27.61 GiB | 0.93 GiB | 29.60 GiB | 0.16 GiB | 32±37% |
| CalmeRys-78B-Orpo-v0.1 | I1-IQ2_XS | 78.0B | 27.00 GiB | 1.43 GiB | 29.55 GiB | 0.21 GiB | 18±22% |
| calme-2.3-rys-78b | IQ2_XS | 78.0B | 27.00 GiB | 1.43 GiB | 29.55 GiB | 0.21 GiB | 18±22% |
| Huihui-GLM-4.7-Flash-abliterated-57BMoE | IQ4_XS | 57.3B | 27.93 GiB | 0.56 GiB | 29.53 GiB | 0.23 GiB | 73±37% |
| Qwen3.5-88BMoE | I1-Q2_K_S | 87.7B | 28.30 GiB | 0.10 GiB | 29.42 GiB | 0.34 GiB | 93±37% |
| Kimi-Linear-48B-A3B-InstructMoE | Q4_K_L | 49.1B | 28.26 GiB | 0.13 GiB | 29.39 GiB | 0.37 GiB | 18±22% |
| DeepCoder-14B-Preview | BF16 | 14.8B | 27.52 GiB | 0.80 GiB | 29.36 GiB | 0.40 GiB | 18±22% |
| SuperNova-Medius | F16 | 14.8B | 27.52 GiB | 0.80 GiB | 29.36 GiB | 0.40 GiB | 18±22% |
| Qwen2.5-14B-Instruct-1M | F16 | 14.8B | 27.52 GiB | 0.80 GiB | 29.36 GiB | 0.40 GiB | 18±22% |
| OpenCodeReasoning-Nemotron-14B | BF16 | 14.8B | 27.52 GiB | 0.80 GiB | 29.36 GiB | 0.40 GiB | 18±22% |
| Qwen2.5-Coder-14B-Instruct-abliterated | F16 | 14.8B | 27.52 GiB | 0.80 GiB | 29.36 GiB | 0.40 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?
- 2022 of 2118 indexed open-weight models fit a RTX PRO 4500 Blackwell at 8,192 context with q8_0 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.