local intelligence

can it run

Can the RTX 3090 (24GB, used) run llama3.1 8B?

YES

Comfortably. 24GB of memory against a 7GB working set leaves headroom for context, the OS, and anything else you're running.

~88–150 tok/s

weights 4.9GB + KV cache 0.5GB at 4k context vs ~24GB usable → full. 5.4 GB needed of 24 GB usable — headroom for context

computed roofline: 936 GB/s × 0.46–0.76 efficiency window / 4.9GB (Q4_K_M) — bands, never points.

Community check: ~85 tok/s · 8-9B Q4 · 20 runs · inside our computed band — localmaxxing.com

What users report — 5 cited rows:

→ 92 tok/s · Meta Llama 3.1 8B Q4_K_M llama.cpp · source

→ 95.7 tok/s · Meta Llama 3.1 8B Q4_K_M LocalScore median · source

→ 95 tok/s · Qwen 2.5 7B Q4_K_M llama.cpp b3520, 2K ctx · source

→ 108.0 tok/s · Meta Llama 3.1 8B Q4_0 Ollama 0.3.9 (3-4 run avg, runpod sheet) · source

→ 115.3 tok/s · Qwen3 8B Q4_K llama.cpp llama-bench -fa 1, 4K ctx · source

short-context (≤4k) numbers; measured down-scaling at longer contexts: ×0.75 at 16k, ×0.58 at 32k, ×0.40 at 64k, ×0.24 at 128k

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Specs

model file4.9GB (GGUF Q4_K_M)
minimum memory7GB working set
this machine24GB GDDR6X, 936 GB/s
params8B
licensellama3.1 (gated on HF)
price$1100

Run it

model files: hugging face ↗

easy run: ollama pull llama3.1:8b

runs with: ollama · llama.cpp · koboldcpp · lm studio

Alternatives

no alternatives — every machine in the catalog can run this one.

rtx-5090 — the next step up from this machine's GPU

Buy

NVIDIA (used market) ↗ · Amazon ↗

2026-09-18 · ← full hardware catalog · prices verified at source, may drift