Can I Run Llama 3.1 Family on NVIDIA GeForce RTX 3070?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes, comfortably — Llama 3.1 8B Instruct at Q4_K_M needs 6.7 GB at 8K context (4.8 GB weights + 1.9 GB KV cache/overhead), leaving ~1.3 GB of the NVIDIA GeForce RTX 3070's 8 GB, at ~47 tok/s (est.), with room for up to 16K context.
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NVIDIA GeForce RTX 3070 Specs
| VRAM | 8 GB |
| Memory Bandwidth | 448 GB/s |
Llama 3.1 8B Instruct on the NVIDIA GeForce RTX 3070: VRAM by quantization
| Quant | VRAM needed | Fits 8 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 17.9 GB | ✗ No | — | — |
| Q8_0 | 10.4 GB | ✗ No | — | — |
| Q6_K | 8.4 GB | ✗ No | — | — |
| Q5_K_M | 7.5 GB | ✓ Yes | 8K | — |
| Q4_K_M | 6.7 GB | ✓ Yes | 16K | — |
| Q3_K_M | 5.3 GB | ✓ Yes | 16K | — |
| Q2_K | 4.5 GB | ✓ Yes | 32K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 8 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA GeForce RTX 3070: 8K 6.7 GB · 32K 9.9 GB ✗ · 128K 22.8 GB ✗. Past 32K it no longer fits 8 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Llama 3.1 8B Instruct on 8 GB of system RAM, CPU only: runs.
Llama 3.1 Family Sizes That Fit the NVIDIA GeForce RTX 3070 (at 8K context)
| Llama 3.1 8B Instruct | Q4_K_M · 6.7 GB at 8K context · ~47 tok/s (est.) |
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
FAQ
Does the NVIDIA GeForce RTX 3070 have enough VRAM for Llama 3.1 Family?
Yes, comfortably — Llama 3.1 8B Instruct at Q4_K_M needs 6.7 GB at 8K context (4.8 GB weights + 1.9 GB KV cache/overhead), leaving ~1.3 GB of the NVIDIA GeForce RTX 3070's 8 GB, at ~47 tok/s (est.), with room for up to 16K context.
Which quantization of Llama 3.1 Family should I use on the NVIDIA GeForce RTX 3070?
Llama 3.1 8B Instruct at Q4_K_M quantization needs 6.7 GB at 8K context (4.8 GB weights + 1.9 GB KV cache/overhead), estimated ~47 tokens/sec, up to 16K context.
Llama 3.1 Family on Other GPUs
- Llama 3.1 Family on NVIDIA GeForce RTX 5060 Ti 8GB
- Llama 3.1 Family on NVIDIA GeForce RTX 5060
- Llama 3.1 Family on NVIDIA GeForce RTX 4060
- Llama 3.1 Family on NVIDIA GeForce RTX 3070 Ti
- Llama 3.1 Family on AMD Radeon RX 9060 XT 8GB
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VRAM Tier
Troubleshooting
Buying Guide
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