Which GPU can run Llama 3.1 8B?
Model-to-GPU finder — pick a model, get the VRAM math and every tracked card that fits. All numbers computed live from our sourced hardware database; nothing is estimated without a label.
The math for Llama 3.1 8B at Q4_K_M
Weights: 8.03B params × 4.8 bits/weight ÷ 8 = 4.82 GB
+ loading overhead (10%): 0.48 GB
+ KV cache @ 4,096 ctx: 0.54 GB
= 5.84 GB VRAM required
Basis: calculated from verified architecture config (Params 8.03B, 32 layers, 8 KV heads, 128 head dim, 131072 context — HF config.json (NousResearch/Meta-Llama-3.1-8B-Instruct).). GPU VRAM/bandwidth figures are vendor specifications from our database. This tool never guesses throughput — see measured benchmarks for speed.
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GPUs that can run Llama 3.1 8B at Q4_K_M
Grouped by headroom over the 5.8 GB requirement. Every card links to full specs; “Check price” appears only where the product is verified available on Amazon.
Runs it comfortably (25%+ VRAM headroom)
| GPU | VRAM | Bandwidth | Type | |
|---|---|---|---|---|
| Arc A580 | 8 GB | 512 GB/s | Consumer GPU | Check price |
| Arc A750 | 8 GB | 512 GB/s | Consumer GPU | Check price |
| GeForce RTX 3070EOL | 8 GB | 448 GB/s | Consumer GPU | Check price |
| GeForce RTX 4060 | 8 GB | 272 GB/s | Consumer GPU | Check price |
| GeForce RTX 4060 Ti 8GB | 8 GB | 288 GB/s | Consumer GPU | Check price |
| GeForce RTX 5050 | 8 GB | 320 GB/s | Consumer GPU | Check price |
| GeForce RTX 5060 | 8 GB | 448 GB/s | Consumer GPU | Check price |
| Radeon RX 7600 | 8 GB | 288 GB/s | Consumer GPU | Check price |
| Arc B570 | 10 GB | 380 GB/s | Consumer GPU | Check price |
| GeForce RTX 3080 10GBEOL | 10 GB | 760 GB/s | Consumer GPU | Check price |
| GeForce RTX 2080 TiEOL | 11 GB | 616 GB/s | Consumer GPU | Check price |
| Arc B580 | 12 GB | 456 GB/s | Consumer GPU | Check price |
| GeForce RTX 3060 12GB | 12 GB | 360 GB/s | Consumer GPU | Check price |
| GeForce RTX 3080 TiEOL | 12 GB | 912 GB/s | Consumer GPU | Check price |
| GeForce RTX 4070EOL | 12 GB | 504 GB/s | Consumer GPU | Check price |
| GeForce RTX 4070 SUPEREOL | 12 GB | 504 GB/s | Consumer GPU | Check price |
| GeForce RTX 5070 | 12 GB | 672 GB/s | Consumer GPU | Check price |
| Radeon RX 7700 XT | 12 GB | 432 GB/s | Consumer GPU | Check price |
| Arc A770 16GB | 16 GB | 560 GB/s | Consumer GPU | Check price |
| GeForce RTX 4060 Ti 16GB | 16 GB | 288 GB/s | Consumer GPU | Check price |
| GeForce RTX 4070 Ti SUPEREOL | 16 GB | 672 GB/s | Consumer GPU | Check price |
| GeForce RTX 4080EOL | 16 GB | 716 GB/s | Consumer GPU | Check price |
| GeForce RTX 4080 SUPER | 16 GB | 736 GB/s | Consumer GPU | Check price |
| GeForce RTX 5060 Ti 16GB | 16 GB | 448 GB/s | Consumer GPU | Check price |
| GeForce RTX 5070 Ti | 16 GB | 896 GB/s | Consumer GPU | Check price |
| GeForce RTX 5080 | 16 GB | 960 GB/s | Consumer GPU | Check price |
| NVIDIA RTX PRO 2000 Blackwell | 16 GB | 288 GB/s | Pro GPU | Check price |
| Radeon RX 6800 XTEOL | 16 GB | 512 GB/s | Consumer GPU | Check price |
| Radeon RX 7600 XT | 16 GB | 288 GB/s | Consumer GPU | Check price |
| Radeon RX 7800 XT | 16 GB | 624 GB/s | Consumer GPU | Check price |
| Radeon RX 9070 | 16 GB | 640 GB/s | Consumer GPU | Check price |
| Radeon RX 9070 XT | 16 GB | 640 GB/s | Consumer GPU | Check price |
| Radeon RX 7900 XT | 20 GB | 800 GB/s | Consumer GPU | Check price |
| GeForce RTX 3090EOL | 24 GB | 936 GB/s | Consumer GPU | Check price |
| GeForce RTX 3090 TiEOL | 24 GB | 1008 GB/s | Consumer GPU | Check price |
| GeForce RTX 4090 | 24 GB | 1008 GB/s | Consumer GPU | Check price |
| NVIDIA RTX PRO 4000 Blackwell | 24 GB | 672 GB/s | Pro GPU | Check price |
| Radeon RX 7900 XTX | 24 GB | 960 GB/s | Consumer GPU | Check price |
| AMD Radeon Pro W7800 | 32 GB | 576 GB/s | Pro GPU | Check price |
| GeForce RTX 5090 | 32 GB | 1792 GB/s | Consumer GPU | Check price |
| NVIDIA RTX 5000 Ada | 32 GB | 576 GB/s | Pro GPU | Check price |
| NVIDIA RTX PRO 4500 Blackwell | 32 GB | 896 GB/s | Pro GPU | Check price |
| NVIDIA A100 40GB SXMEOL | 40 GB | 1555 GB/s | Data Center GPU | |
| AMD Radeon Pro W7900 | 48 GB | 864 GB/s | Pro GPU | Check price |
| NVIDIA RTX PRO 5000 Blackwell | 48 GB | 1344 GB/s | Pro GPU | |
| RTX 6000 Ada | 48 GB | 960 GB/s | Pro GPU | Check price |
| RTX A6000 | 48 GB | 768 GB/s | Pro GPU | Check price |
| H100 SXM | 80 GB | 3350 GB/s | Data Center GPU | |
| NVIDIA A100 80GB SXM | 80 GB | 2039 GB/s | Data Center GPU | |
| NVIDIA H100 PCIe 80GB | 80 GB | 2039 GB/s | Data Center GPU | |
| NVIDIA RTX PRO 6000 Blackwell | 96 GB | 1792 GB/s | Pro GPU | Check price |
| H200 SXM | 141 GB | 4800 GB/s | Data Center GPU | |
| AMD Instinct MI300X | 192 GB | 5300 GB/s | Data Center GPU | |
| NVIDIA B200 | 192 GB | 8000 GB/s | Data Center GPU | |
| AMD Instinct MI325X | 256 GB | 6000 GB/s | Data Center GPU | |
| AMD Instinct MI355X | 288 GB | 8000 GB/s | Data Center GPU | |
| NVIDIA B300 (Blackwell Ultra) | 288 GB | 8000 GB/s | Data Center GPU |
Apple Silicon options for Llama 3.1 8B
macOS lets Apple Silicon GPUs address about 75% of unified memory. Speed is bandwidth-bound — compare the GB/s column.
| Mac | Unified memory | Usable by GPU (~75%) | Bandwidth |
|---|---|---|---|
| Apple M3 | 24 GB | 18 GB | 150 GB/s |
| Apple M4 | 32 GB | 24 GB | 120 GB/s |
| Apple M3 Pro | 36 GB | 27 GB | 300 GB/s |
| Apple M4 Pro | 64 GB | 48 GB | 273 GB/s |
| Apple M3 Max | 128 GB | 96 GB | 400 GB/s |
| M4 Max (MacBook Pro) | 128 GB | 96 GB | 546 GB/s |
| M3 Ultra (Mac Studio) | 512 GB | 384 GB | 819 GB/s |
Go deeper
- Full fit page for Llama 3.1 8B — every quantization level, pre-built systems, FAQ.
- VRAM calculator — start from a parameter count instead of a named model.
- Best GPUs for LLM inference — tier-by-tier buying guide.
Methodology: how we source and verify specs. Found a wrong number? File a correction.