GPU × Model Compatibility

Can a NVIDIA GeForce RTX 3080 run Llama 3 / 3.1 (8B)?

NVIDIA GeForce RTX 3080 has 10GB VRAM. Here's exactly whichprecision (FP16, FP8, GGUF)of Llama 3 / 3.1 (8B) fits and how smoothly it runs.

Runs locally — recommended

This GPU has enough VRAM for Llama 3 / 3.1 (8B). Best pick: Q4_K_M (4-bit Recommended) (~5.0GB) with 5.0GB headroom.

5.0GB
smallest fit on this GPU

Run it locally

NVIDIA GeForce RTX 3080 (10GB) · ~$649 is a solid fit for Llama 3 / 3.1 (8B).

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Llama 3 / 3.1 (8B) variants on the NVIDIA GeForce RTX 3080

VariantPrecisionSizeTotal VRAM neededHeadroomFits?
Q4_K_M (4-bit Recommended)RECq4_k_m5.0GB5.0GB+5.0GB✓ Fits
FP8 (Quantized)fp89.0GB9.0GB+1.0GB⚠ Tight
Q8_0 (8-bit GGUF)q8_09.3GB9.3GB+0.7GB⚠ Tight
FP16 (Uncompressed)fp1617.5GB17.5GB-7.5GB✗ OOM

"Total VRAM needed" = variant size + 0.0GB estimated text-encoder/VAE overhead. Headroom = GPU VRAM (10GB) − total needed. Green ≥ 1.5GB headroom; Red ≤ −2GB (will OOM).

NVIDIA GeForce RTX 3080 at a glance

VRAM
10GB
Est. price
$649
Best for
16.0GB Llama 3 / 3.1 (8B) and lighter

Other models on the NVIDIA GeForce RTX 3080

Other GPUs for Llama 3 / 3.1 (8B)