Can I Run OLMo 2 13B Instruct on AMD Radeon RX 7800 XT?
Autor: Jakub Rusinowski · Ostatnia aktualizacja: 29 września 2026
Yes, but it's tight. OLMo 2 13B Instruct needs 15.8 GB at 8K context (8.3 GB weights + 7.5 GB KV cache/overhead) at Q4_K_M and the AMD Radeon RX 7800 XT has 16 GB, leaving about 0.2 GB of headroom, at roughly 31 tok/s (estimated) with room for up to 4K of context.
See what else this hardware can run →
The numbers
| Model | OLMo 2 13B Instruct |
| Parameters | 13B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 15.8 GB |
| AMD Radeon RX 7800 XT VRAM | 16 GB |
| Verdict | Runs |
| Max context | 4K |
| Estimated speed | ~31 tok/s |
OLMo 2 13B Instruct on the AMD Radeon RX 7800 XT: VRAM by quantization
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 34.9 GB | ✗ No | — | — |
| Q8_0 | 22.1 GB | ✗ No | — | — |
| Q6_K | 18.7 GB | ✗ No | — | — |
| Q5_K_M | 17.2 GB | ✗ No | — | — |
| Q4_K_M | 15.8 GB | ✓ Yes | 4K | — |
| Q3_K_M | 13.4 GB | ✓ Yes | 4K | — |
| Q2_K | 12 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 16 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 13B Instruct on 24 GB of system RAM, CPU only: runs.
Running OLMo 2 13B Instruct on this card:
At 2 hrs/day, buying (~$499) beats renting at $0.34/hr after about 2.0 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 7800 XT
- OLMo 2 7B Instruct — runs (9.5 GB)
OLMo 2 13B Instruct on nearby hardware
- Intel Arc B570 (10 GB) — does not fit
- AMD Radeon RX 7900 XT (20 GB) — runs
All OLMo 2 sizes on the AMD Radeon RX 7800 XT | OLMo 2 13B Instruct model page | AMD Radeon RX 7800 XT GPU page | VRAM calculator | Check your hardware