Can I Run Qwen3-Coder-Next (80B-A3B MoE) on NVIDIA GeForce RTX 5070?
Written by Jakub Rusinowski · Last updated September 29, 2026
No. Qwen3-Coder-Next (80B-A3B MoE) needs 51.6 GB at 8K context (48.3 GB weights + 3.3 GB KV cache/overhead) at Q4_K_M and the NVIDIA GeForce RTX 5070 has only 12 GB. No quantization we publish closes a gap that size.
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The numbers
| Model | Qwen3-Coder-Next (80B-A3B MoE) |
| Parameters | 80B/3B active |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 51.6 GB |
| NVIDIA GeForce RTX 5070 VRAM | 12 GB |
| Verdict | Does not fit |
Qwen3-Coder-Next (80B-A3B MoE) on the NVIDIA GeForce RTX 5070: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 163.3 GB | ✗ No | — | — |
| Q8_0 | 88.3 GB | ✗ No | — | — |
| Q6_K | 68.9 GB | ✗ No | — | — |
| Q5_K_M | 60 GB | ✗ No | — | — |
| Q4_K_M | 51.6 GB | ✗ No | — | — |
| Q3_K_M | 37.4 GB | ✗ No | — | — |
| Q2_K | 29.6 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 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 5070: 8K 51.6 GB ✗ · 32K 59 GB ✗ · 128K 88.8 GB ✗. Past 8K it no longer fits 12 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 NVIDIA RTX PRO 5000 Blackwell (72 GB) (72 GB), the card with the least memory we track that holds it.
No compatible GPU? Qwen3-Coder-Next (80B-A3B MoE) on 96 GB of system RAM, CPU only: runs.
Qwen3-Coder-Next (80B-A3B MoE) needs ~52 GB but this GPU has 12 GB. Rent a A100 (80 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 Qwen3-Coder sizes on the NVIDIA GeForce RTX 5070
- Qwen3-Coder 480B-A35B (MoE) — does not fit (291.6 GB)
Qwen3-Coder-Next (80B-A3B MoE) on nearby hardware
- Intel Arc B570 (10 GB) — does not fit
- NVIDIA A100 80GB (PCIe) (80 GB) — runs
All Qwen3-Coder sizes on the NVIDIA GeForce RTX 5070 | Qwen3-Coder-Next (80B-A3B MoE) model page | NVIDIA GeForce RTX 5070 GPU page | VRAM calculator | Check your hardware