Llama 3.1 8B Instruct on NVIDIA GeForce RTX 5090
NVIDIA GeForce RTX 5090 runs Llama 3.1 8B Instruct excellently at 170 tok/s at Q8_0. This is a strong pairing.
Model Size
8.03B
Device VRAM
32 GB
Bandwidth
1792 GB/s
Quantizations Tested
1
Performance by Quantization
Each row shows Llama 3.1 8B Instruct performance at a different quality level on NVIDIA GeForce RTX 5090.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q8_0 | 170 tok/s | 35ms | ✓ Yes | Excellent | estimated |
Notes
Q8_0
RTX 5090 bandwidth (1792 GB/s) ~1.8x 4090. Near-instant 8B inference.
About Llama 3.1 8B Instruct
Llama 3.1 8B Instruct (8.03B) is a chat, coding, ai coding, reasoning, multi-purpose model. Best-in-class 8B model. Strong general capabilities with excellent coding support. The go-to small model for local inference — fast, accurate, and well-supported across all inference engines.
View all Llama 3.1 8B Instruct hardware options →About NVIDIA GeForce RTX 5090
NVIDIA GeForce RTX 5090 has 32 GB at 1792 GB/s. Street price: $2,199.
See all models NVIDIA GeForce RTX 5090 can run →Builds with NVIDIA GeForce RTX 5090
Source: Community benchmarks and estimated performance (2026-03-01)
Data last updated: 2026-03-01