Can I Run OLMo 2 7B Instruct on AMD Radeon RX 7900 XT?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes. OLMo 2 7B Instruct needs 9.5 GB at 8K context (4.4 GB weights + 5.1 GB KV cache/overhead) at Q4_K_M and the AMD Radeon RX 7900 XT has 20 GB, leaving about 10.5 GB of headroom, at roughly 62 tok/s (estimated) with room for up to 4K of context.
See what else this hardware can run →
The numbers
| Model | OLMo 2 7B Instruct |
| Parameters | 7B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 9.5 GB |
| AMD Radeon RX 7900 XT VRAM | 20 GB |
| Verdict | Runs |
| Max context | 4K |
| Estimated speed | ~62 tok/s |
OLMo 2 7B Instruct on the AMD Radeon RX 7900 XT: VRAM by quantization
| Quant | VRAM needed | Fits 20 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 19.7 GB | ✓ Yes | 4K | — |
| Q8_0 | 12.9 GB | ✓ Yes | 4K | — |
| Q6_K | 11.1 GB | ✓ Yes | 4K | — |
| Q5_K_M | 10.3 GB | ✓ Yes | 4K | — |
| Q4_K_M | 9.5 GB | ✓ Yes | 4K | — |
| Q3_K_M | 8.2 GB | ✓ Yes | 4K | — |
| Q2_K | 7.5 GB | ✓ Yes | 4K | — |
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 20 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
What to do next
Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.
No compatible GPU? OLMo 2 7B Instruct on 16 GB of system RAM, CPU only: runs.
Running OLMo 2 7B Instruct on this card:
At 2 hrs/day, buying (~$899) beats renting at $0.34/hr after about 3.7 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Other OLMo 2 sizes on the AMD Radeon RX 7900 XT
- OLMo 2 13B Instruct — runs (15.8 GB)
OLMo 2 7B Instruct on nearby hardware
- AMD Radeon RX 9060 XT 16GB (16 GB) — runs
All OLMo 2 sizes on the AMD Radeon RX 7900 XT | OLMo 2 7B Instruct model page | AMD Radeon RX 7900 XT GPU page | VRAM calculator | Check your hardware