作者： Jakub Rusinowski · 最后更新： 2026年7月12日
Yes, comfortably — you'll have ~19.7 GB of headroom running Qwen 2.5 VL 72B Instruct at Q4_K_M (44.315250000000006 GB, ~4 tok/s (est.)) with room for up to 32K context.
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| VRAM | 64 GB unified memory |
| Memory Bandwidth | 307 GB/s |
| Quant | VRAM needed | Fits 64 GB? | Max context |
|---|---|---|---|
| F16 | 148.9 GB | ✗ No | — |
| Q8_0 | 80.1 GB | ✗ No | — |
| Q6_K | 62.3 GB | ✓ Yes | 8K |
| Q5_K_M | 54.2 GB | ✓ Yes | 32K |
| Q4_K_M | 46.5 GB | ✓ Yes | 32K |
| Q3_K_M | 33.4 GB | ✓ Yes | 64K |
| Q2_K | 26.3 GB | ✓ Yes | 64K |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 64 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
| Qwen 2.5 VL 72B Instruct | Q4_K_M · 44.315250000000006 GB · ~4 tok/s (est.) |
| Qwen 2.5 VL 7B Instruct | Q4_K_M · 5.005087499999999 GB · ~29 tok/s (est.) |
At 2 hrs/day, buying (~$1,999) beats renting at $0.77/hr after about 3.6 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 ~19.7 GB of headroom running Qwen 2.5 VL 72B Instruct at Q4_K_M (44.315250000000006 GB, ~4 tok/s (est.)) with room for up to 32K context.
Qwen 2.5 VL 72B Instruct at Q4_K_M quantization (44.315250000000006 GB), estimated ~4 tokens/sec, up to 32K context.
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Qwen 2.5 VL 72B Instruct | 44.3 GB | Runs | ~4 tok/s |
| Qwen 2.5 VL 7B Instruct | 5.0 GB | Runs | ~29 tok/s |
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