Q4_K_M
126.5 GBMin VRAM: 145.5 GB
Recommended VRAM: 164.5 GB
Min RAM: 190 GB
Context: 8K / 8K
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Model Detail
Share Llama 3.1 Nemotron Ultra 253B with someone who is deciding what to run locally.
Social proof
2% of 985 scanned PCs run Llama 3.1 Nemotron Ultra 253B fully on GPU.
216 keep at least some work on GPU. Based on anonymous compatibility checks.
General-purpose local model brief
Best for
Consider alternatives if
Quantization tip: Benchmark at least two quantizations and validate with a task-specific eval set before production use.
New to local models? Smaller quantization variants are easier to run, while larger ones can improve quality at the cost of more memory.
Q4_K_M
126.5 GBMin VRAM: 145.5 GB
Recommended VRAM: 164.5 GB
Min RAM: 190 GB
Context: 8K / 8K
Q5_K_M
158.1 GBMin VRAM: 181.8 GB
Recommended VRAM: 205.5 GB
Min RAM: 238 GB
Context: 8K / 8K
Q8_0
253 GBMin VRAM: 291 GB
Recommended VRAM: 328.9 GB
Min RAM: 380 GB
Context: 8K / 8K
FP16
506 GBMin VRAM: 581.9 GB
Recommended VRAM: 657.8 GB
Min RAM: 759 GB
Context: 8K / 8K
| Quantization | File Size | Min VRAM | Recommended VRAM | Min RAM | Context |
|---|---|---|---|---|---|
| Q4_K_M | 126.5 GB | 145.5 GB | 164.5 GB | 190 GB | 8K / 8K |
| Q5_K_M | 158.1 GB | 181.8 GB | 205.5 GB | 238 GB | 8K / 8K |
| Q8_0 | 253 GB | 291 GB | 328.9 GB | 380 GB | 8K / 8K |
| FP16 | 506 GB | 581.9 GB | 657.8 GB | 759 GB | 8K / 8K |
These GPUs meet the recommended 164.5 GB VRAM for the Q4_K_M quantization. Estimated speeds are approximate and assume full GPU offloading.
Budget Pick
Apple M2 Ultra192 GB VRAM · ~5.1 tok/s
Lowest cost that meets recommended VRAM
Check price on AmazonFastest Pick
Apple M4 Ultra256 GB VRAM · ~6.9 tok/s
Highest estimated throughput
Check price on AmazonBest Value
Apple M3 Ultra192 GB VRAM · ~5.1 tok/s
Best speed per dollar of VRAM
Check price on AmazonNeed a detailed comparison? See all GPU rankings for Llama 3.1 Nemotron Ultra 253B.