Autor: Jakub Rusinowski · Ostatnia aktualizacja: 12 lipca 2026
Yes, comfortably — you'll have ~3.1 GB of headroom running Qwen 3 14B at Q4_K_M (8.9 GB, ~44 tok/s (est.)) with room for up to 8K context.
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or compare on Vast.ai from $0.35/hr (typical low · varies)
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| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 31.1 GB | ✗ No | — | — |
| Q8_0 | 17.2 GB | ✗ No | — | Build for this |
| Q6_K | 13.6 GB | ✗ No | — | — |
| Q5_K_M | 12 GB | ✓ Yes | 4K | Build for this |
| Q4_K_M | 10.4 GB | ✓ Yes | 8K | Build for this |
| Q3_K_M | 7.8 GB | ✓ Yes | 16K | — |
| Q2_K | 6.3 GB | ✓ Yes | 32K | — |
Assumes a 4K-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 12 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 NVIDIA GeForce RTX 4070: 8K 11.1 GB · 32K 15.1 GB ✗ · 125K 30.7 GB ✗. Past 32K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Qwen 3 14B on 16 GB of system RAM, CPU only: runs, but it is tight.
| Qwen 3 14B | Q4_K_M · 8.9 GB · ~44 tok/s (est.) |
| Qwen 3 8B | Q4_K_M · 5 GB · ~71 tok/s (est.) |
At 2 hrs/day, buying (~$599) beats renting at $0.34/hr after about 2.4 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.
Yes, comfortably — you'll have ~3.1 GB of headroom running Qwen 3 14B at Q4_K_M (8.9 GB, ~44 tok/s (est.)) with room for up to 8K context.
Qwen 3 14B at Q4_K_M quantization (8.9 GB), estimated ~44 tokens/sec, up to 8K context.
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Qwen 3 235B-A22B (MoE) | 141.9 GB | Does not fit | — |
| Qwen 3 32B | 19.8 GB | Does not fit | — |
| Qwen 3 30B-A3B (MoE) | 18.4 GB | Does not fit | — |
| Qwen 3 14B | 8.9 GB | Runs | ~44 tok/s |
| Qwen 3 8B | 5 GB | Runs | ~71 tok/s |
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