Can I Run DeepSeek V4-Flash on NVIDIA A100 80GB (PCIe)?
Written by Jakub Rusinowski · Last updated July 21, 2026
No. DeepSeek V4-Flash needs 172.8 GB at 8K context (171.5 GB weights + 1.3 GB KV cache/overhead) at Q4 (experimental) and the NVIDIA A100 80GB (PCIe) has only 80 GB. No quantization we publish closes a gap that size.
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The numbers
| Model | DeepSeek V4-Flash |
| Parameters | 284B (13B active) |
| Quantization | Q4 (experimental) |
| VRAM needed (8K context) | 172.8 GB |
| NVIDIA A100 80GB (PCIe) VRAM | 80 GB |
| Verdict | Does not fit |
DeepSeek V4-Flash on the NVIDIA A100 80GB (PCIe): VRAM by quantization
| Quant | VRAM needed | Fits 80 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 569.4 GB | ✗ No | — | — |
| Q8_0 | 303.1 GB | ✗ No | — | — |
| Q6_K | 234.3 GB | ✗ No | — | — |
| Q5_K_M | 202.7 GB | ✗ No | — | — |
| Q4_K_M | 172.8 GB | ✗ No | — | — |
| Q3_K_M | 122.4 GB | ✗ No | — | — |
| Q2_K | 94.7 GB | ✗ No | — | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 80 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 (experimental) on the NVIDIA A100 80GB (PCIe): 8K 172.8 GB ✗ · 32K 174.6 GB ✗ · 128K 181.5 GB ✗. Past 8K it no longer fits 80 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
What to do next
Either step down to a smaller size in this family, or move to a Apple M5 Ultra (512 GB), the card with the least memory we track that holds it.
No compatible GPU? DeepSeek V4-Flash on 128 GB of system RAM, CPU only: runs, but it is tight.
DeepSeek V4-Flash needs ~173 GB but this GPU has 80 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:
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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 DeepSeek V4 sizes on the NVIDIA A100 80GB (PCIe)
- DeepSeek V4-Pro — does not fit (527.4 GB)
DeepSeek V4-Flash on nearby hardware
- Apple M2 Max (96 GB) — does not fit
All DeepSeek V4 sizes on the NVIDIA A100 80GB (PCIe) | DeepSeek V4-Flash model page | NVIDIA A100 80GB (PCIe) GPU page | VRAM calculator | Check your hardware