Can the RTX A1000 run Granite 4.2 8B?
Yes. Granite 4.2 8B fits the RTX A1000's 8 GB at Q4_K_M (about 6.8 GB needed), running at an estimated 22 tok/s. There's room for up to Q5_K_M if you want higher quality.
Every quantization
Granite 4.2 8B (8.8B) on 8 GB
| Quant | Weights | Needs | Fit | Est. speed |
|---|---|---|---|---|
| Q4_K_M | 5 GB | 6.8 GB | Fits | ~22 tok/s |
| Q5_K_M | 6 GB | 7.8 GB | Tight | ~18 tok/s |
| Q8_0 | 9 GB | 10.8 GB | Too big | - |
| FP16 | 18 GB | 19.8 GB | Too big | - |
Estimates. Needs = weights + 1.8 GB for KV cache and runtime at modest context. Speed is single-stream decode scaled from the RTX A1000's 192 GB/s bandwidth (Estimated from memory bandwidth (llama.cpp decode)). Long contexts need more memory and run slower.
Run it
Copy, paste, go
llama-server -hf ibm-granite/granite-4.2-8b-GGUF -ngl 99Ollama pulls a Q4 build by default. Pick a larger quant only if the table above says it fits. Full Granite 4.2 8B details →
Compare
Same model, other hardware - and other models on this card
Granite 4.2 8B on other hardware
- RTX 5090~206 tok/s
- RTX 5090 D~205 tok/s
- RTX 6000D~180 tok/s
- RTX 4090~125 tok/s
- RTX 3090~110 tok/s
- Radeon RX 7900 XTX~110 tok/s
- RTX 5080~110 tok/s
- RTX 3080 Ti~105 tok/s
Also runs on the RTX A1000
- Ling 3.0 Tiny~22 tok/s
- Mistral-7B-Instruct-v0.2~28 tok/s
- Qwen3.5 4B~37 tok/s
- Qwen3-4B-Instruct-2507~55 tok/s
- Granite 4.2 3B~55 tok/s
- Phi-4 Mini~44 tok/s
Frequently asked
Quick answers
Can the RTX A1000 run Granite 4.2 8B?
Yes. Granite 4.2 8B fits the RTX A1000's 8 GB at Q4_K_M (about 6.8 GB needed), running at an estimated 22 tok/s. There's room for up to Q5_K_M if you want higher quality.
How much VRAM does Granite 4.2 8B need?
About 5 GB of weights at Q4_K_M, 9 GB at Q8_0 and 18 GB at FP16. Add roughly 1.8 GB for the KV cache and runtime at modest context lengths.
How fast is Granite 4.2 8B on the RTX A1000?
Roughly 22 tokens per second at Q4_K_M (single user, llama.cpp-style decode). This is an estimate from the RTX A1000's 192 GB/s memory bandwidth.