Can I Run Cogito v1 14B on AMD Radeon RX 7900 XT?
Autor: Jakub Rusinowski · Ostatnia aktualizacja: 12 lipca 2026
Yes. Cogito v1 14B needs 10.9 GB at 8K context (8.5 GB weights + 2.4 GB KV cache/overhead) at Q4_K_M and the AMD Radeon RX 7900 XT has 20 GB, leaving about 9.1 GB of headroom, at roughly 47 tok/s (estimated) with room for up to 32K of context.
See what else this hardware can run →
The numbers
| Model | Cogito v1 14B |
| Parameters | 14B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 10.9 GB |
| AMD Radeon RX 7900 XT VRAM | 20 GB |
| Verdict | Runs |
| Max context | 32K |
| Estimated speed | ~47 tok/s |
Cogito v1 14B on the AMD Radeon RX 7900 XT: VRAM by quantization
| Quant | VRAM needed | Fits 20 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 30.4 GB | ✗ No | — | — |
| Q8_0 | 17.3 GB | ✓ Yes | 16K | — |
| Q6_K | 13.9 GB | ✓ Yes | 32K | — |
| Q5_K_M | 12.3 GB | ✓ Yes | 32K | — |
| Q4_K_M | 10.9 GB | ✓ Yes | 32K | — |
| Q3_K_M | 8.4 GB | ✓ Yes | 64K | — |
| Q2_K | 7 GB | ✓ Yes | 64K | — |
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.
Context costs VRAM too. At Q4_K_M on the AMD Radeon RX 7900 XT: 8K 10.9 GB · 32K 15.7 GB · 128K 35 GB ✗. Past 128K it no longer fits 20 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
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? Cogito v1 14B on 16 GB of system RAM, CPU only: runs, but it is tight.
Running Cogito v1 14B 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 Cogito v1 sizes on the AMD Radeon RX 7900 XT
- Cogito v1 70B — does not fit (45.7 GB)
- Cogito v1 32B — runs at a lower quant (22.3 GB)
- Cogito v1 8B — runs (6.7 GB)
- Cogito v1 3B — runs (3.6 GB)
Cogito v1 14B on nearby hardware
- Apple M1 (16 GB) — runs
- NVIDIA GeForce RTX 4090 (24 GB) — runs
All Cogito v1 sizes on the AMD Radeon RX 7900 XT | Cogito v1 14B model page | AMD Radeon RX 7900 XT GPU page | VRAM calculator | Check your hardware