Written by Jakub Rusinowski · Last updated July 21, 2026
Yes, comfortably — you'll have ~27.8 GB of headroom running Llama 3.3 70B Instruct at Q2_K_XS (Tight) (20.212500000000002 GB, ~38 tok/s (est.)).
or compare on Vast.ai from $0.35/hr (typical low · varies)
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| VRAM | 48 GB |
| Memory Bandwidth | 960 GB/s |
| Quant | VRAM needed | Fits 48 GB? | Max context |
|---|---|---|---|
| F16 | 142.1 GB | ✗ No | — |
| Q8_0 | 76.5 GB | ✗ No | — |
| Q6_K | 59.5 GB | ✗ No | — |
| Q5_K_M | 51.8 GB | ✗ No | — |
| Q4_K_M | 44.4 GB | ✓ Yes | 8K |
| Q3_K_M | 32 GB | ✓ Yes | 32K |
| Q2_K | 25.2 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 48 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
| Llama 3.3 70B Instruct | Q2_K_XS (Tight) · 20.212500000000002 GB · ~38 tok/s (est.) |
At 2 hrs/day, buying (~$6,799) beats renting at $0.34/hr after about 27.8 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 ~27.8 GB of headroom running Llama 3.3 70B Instruct at Q2_K_XS (Tight) (20.212500000000002 GB, ~38 tok/s (est.)).
Llama 3.3 70B Instruct at Q2_K_XS (Tight) quantization (20.212500000000002 GB), estimated ~38 tokens/sec.
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