RTX 4000 SFF Ada Generation
RTX 4000 SFF Ada Generation has 20 GB of VRAM at 280 GB/s — about 18.60 GiB usable after driver and compositor overhead. 1608 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◐ |
|---|---|---|---|---|---|---|---|
| dolphin-2.6-mistral-7b | Q5_K_M | 7.2B | 9.56 GiB | 8.00 GiB | 18.60 GiB | 0.00 GiB | 9±22% |
| DeepSeek-R1-Distill-Llama-8B-Abliterated | I1-Q4_1 | 8.0B | 9.56 GiB | 8.00 GiB | 18.60 GiB | 0.00 GiB | 9±22% |
| OpenHermes-2.5-Mistral-7BKV unresolved | Q5_K_M | 7.2B | 9.56 GiB | 8.00 GiB | 18.59 GiB | 0.01 GiB | 9±22% |
| Muse-Glimmer-30B | Q4_1 | 29.8B | 16.60 GiB | 0.91 GiB | 18.59 GiB | 0.01 GiB | 9±22% |
| Snowpiercer-15B-v4-heretic | I1-Q2_K_S | 15.0B | 5.05 GiB | 12.50 GiB | 18.59 GiB | 0.01 GiB | 9±22% |
| Qwen3-VL-8B-Instruct-Heretic | IQ4_XS | 8.8B | 8.56 GiB | 9.00 GiB | 18.59 GiB | 0.01 GiB | 9±22% |
| EVA-abliterated-TIES-Qwen2.5-14B | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Neuron-V1-14B-Instruct | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Ektome-Qwen2.5-Coder-14B-Instruct-PristinelyUncensored | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Qwen2.5-14B-Instruct-1M-abliterated | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| DeepCoder-14B-Preview | IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Deepseeker-Kunou-Qwen2.5-14b | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| 14B-Qwen2.5-Kunou-v1 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Sugoi-14B-Ultra-HF | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| OpenCodeReasoning-Nemotron-14B | IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| DeepSeek-R1-Distill-Qwen-14B-abliterated-v2 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| C1-Tachu | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| DeepSeek-R1-Distill-Qwen-14B-abliterated | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| 0x-lite | IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Tessera-4 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Tessera-4.1 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| AceReason-Nemotron-14B | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| UwU-14B-Math-v0.2 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| EVA-Qwen2.5-14B-v0.2 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| EVA-Qwen2.5-14B-v0.0 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| EVA-Qwen2.5-14B-v0.1 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Impish_QWEN_14B-1M | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Lamarck-14B-v0.7 | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| QwenStock-14B | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| DeepSeek-R1-Distill-Qwen-14B-Uncensored | I1-IQ3_XXS | 14.8B | 5.54 GiB | 12.00 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Gemma-3-27B-MeditronFO | I1-IQ3_S | 28.8B | 11.90 GiB | 5.61 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| reka-flash-3.1 | I1-Q3_K_S | 20.9B | 9.25 GiB | 8.25 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| reka-flash-3 | Q3_K_S | 20.9B | 9.25 GiB | 8.25 GiB | 18.58 GiB | 0.02 GiB | 9±22% |
| Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16 | UD-IQ3_S | 33.0B | 17.53 GiB | 0.00 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Goetia-26B-A4B-v1.4MoE | I1-Q4_K_S | 26.0B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| G4-Moonlight-Dusk-26B-A4B-hereticMoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Pantheon-Reasoning-26B-A4B-1.1-hereticMoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| G4-Moonlight-Dusk-26B-A4BMoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Chimera-X-26B-A4BMoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Pantheon-Reasoning-26B-A4B-1.1MoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Gemma-4-26B-A4B-StyleTune-V2MoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Gemma-4-26B-A4B-StyleTuneMoE | I1-Q4_K_S | 26.5B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| gemma-4-26b-a4b-heretic-styletune-v2-headMoE | I1-Q4_K_S | 25.8B | 14.79 GiB | 2.79 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Gemma-The-Writer-N-Restless-Quill-10B-Uncensored | I1-IQ4_XS | 10.0B | 5.22 GiB | 12.31 GiB | 18.57 GiB | 0.03 GiB | 9±22% |
| Skywork-R1V3-38B | Q4_K_S | 38.4B | 17.49 GiB | 0.00 GiB | 18.56 GiB | 0.04 GiB | 9±22% |
| Fimbulvetr-11B-v2 | I1-IQ4_XS | 10.7B | 5.52 GiB | 12.00 GiB | 18.56 GiB | 0.04 GiB | 9±22% |
| Llama-3.2-8X3B-MOE-Dark-Champion-Instruct-uncensored-abliterated-18.4BMoE | Q4_K_M | 18.4B | 10.54 GiB | 7.00 GiB | 18.54 GiB | 0.06 GiB | 9±37% |
| ERNIE-21B-A3B-Thinking-Gemini-3-Pro-High-Reasoning-V2 | I1-Q5_K_S | 21.8B | 14.02 GiB | 3.50 GiB | 18.54 GiB | 0.06 GiB | 9±22% |
| ERNIE-21B-A3B-Claude-4.5-High-OPUS-Thinking | I1-Q5_K_S | 21.8B | 14.02 GiB | 3.50 GiB | 18.54 GiB | 0.06 GiB | 9±22% |
| ERNIE-4.5-21B-A3B-Thinking | I1-Q5_K_S | 21.8B | 14.02 GiB | 3.50 GiB | 18.54 GiB | 0.06 GiB | 9±22% |
| Qwen3.5-35B-A3BMoE | UD-IQ4_XS | 36.0B | 16.29 GiB | 1.25 GiB | 18.54 GiB | 0.06 GiB | 33±37% |
| gemma-4-26B-A4B-itMoE | Q4_K_S | 26.5B | 14.76 GiB | 2.79 GiB | 18.54 GiB | 0.06 GiB | 9±22% |
| Snowpiercer-15B-v4 | IQ2_M | 15.0B | 4.98 GiB | 12.50 GiB | 18.53 GiB | 0.07 GiB | 9±22% |
| UncensoredLM-DeepSeek-R1-Distill-Qwen-14B | Q3_K_S | 14.2B | 5.98 GiB | 11.50 GiB | 18.53 GiB | 0.07 GiB | 9±22% |
| AMALIA-9B-0626-DPO | Q6_K | 9.2B | 7.00 GiB | 10.50 GiB | 18.53 GiB | 0.07 GiB | 9±22% |
| Qwen3.5-40B-Claude-4.6-Opus-Deckard-Heretic-Uncensored-Thinking | I1-IQ2_S | 39.5B | 11.45 GiB | 6.00 GiB | 18.52 GiB | 0.08 GiB | 9±22% |
| Aurora-Code-1MoE | I1-Q4_K_S | 34.7B | 16.26 GiB | 1.25 GiB | 18.51 GiB | 0.09 GiB | 33±37% |
| Ling-liteMoE | Q6_K | 16.8B | 14.02 GiB | 3.50 GiB | 18.51 GiB | 0.09 GiB | 16±37% |
| Huihui-Qwen3-Coder-Next-abliteratedMoE | IQ1_M | 79.7B | 16.01 GiB | 1.50 GiB | 18.50 GiB | 0.10 GiB | 33±37% |
| Phi-3-medium-128k-instruct | Q2_K_L | 14.0B | 4.94 GiB | 12.50 GiB | 18.50 GiB | 0.10 GiB | 9±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 |
|---|---|---|---|
| Image generation | 10.30 it/s | 7.64–10.69 | 9 |
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 vladmandic-sd-data-benchmark, which publishes no licence — so we display and link rather than redistribute them.
Questions people ask
- What AI models can a RTX 4000 SFF Ada Generation run?
- 1608 of 2118 indexed open-weight models fit a RTX 4000 SFF Ada Generation at 65,536 context with f16 KV cache, the largest being dolphin-2.6-mistral-7b at Q5_K_M. That covers text, vision-language, image, video and speech models.
- How much usable memory does a RTX 4000 SFF Ada Generation actually have?
- Its nameplate is 20 GB, but about 18.60 GiB is available to a model once driver and compositor overhead is accounted for.
- Is a RTX 4000 SFF Ada Generation fast for local AI?
- Its memory bandwidth is 280 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.