Qwen3 235B-A22B (MoE)
Qwen3 235B-A22B (MoE) needs roughly 162.1 GB VRAM at Q4_K_M quantization (528.2 GB at FP16). 16 GPUs we track can run it fully in VRAM at 8k context.
16 GPUs run this natively · 1 with CPU offload
Qwen3 235B-A22B (MoE) is a Mixture of Experts (MoE) model with 235B total parameters but only 22B active per token developed by Alibaba. April 2025 flagship MoE with 235B total parameters but only 22B active. Reasoning-optimized architecture.
To run Qwen3 235B-A22B (MoE) locally: Q4_K_M needs roughly 143.1GB of weights, about 162.1GB total at a short context; the smallest single machine this site tracks that fits it is a 180GB NVIDIA B200, or a comparable multi-GPU server / large unified-memory Mac Studio. As a MoE model, inference speed depends on active parameters (22B) rather than total size.
MoE efficiency with frontier-scale quality, designed for complex reasoning and agentic workflows.
VRAM at each quantization
Calculated at 8k context. Since KV cache scales linearly with context, longer sessions need more VRAM than shown here.
| Quant | Weights | KV cache | Total |
|---|---|---|---|
| FP32 | 940.0 GB | 1.58 GB | 1054.6 GB |
| BF16 | 470.0 GB | 1.58 GB | 528.2 GB |
| FP16 | 470.0 GB | 1.58 GB | 528.2 GB |
| Q8_0 | 249.8 GB | 1.58 GB | 281.6 GB |
| Q6_K | 192.9 GB | 1.58 GB | 217.8 GB |
| Q5_K_M | 167.3 GB | 1.58 GB | 189.2 GB |
| Q4_K_Mrec | 143.1 GB | 1.58 GB | 162.1 GB |
| Q3_K_M | 113.0 GB | 1.58 GB | 128.4 GB |
| Q2_K | 89.5 GB | 1.58 GB | 102.0 GB |
| NVFP4cuda | 117.5 GB | 1.58 GB | 133.4 GB |
KV cache is calculated at 8k context (FP16). Note that NVFP4 only runs on CUDA GPUs. Turn on TurboQuant in the calculator above for lower KV cache estimates.
Benchmarks
GPUs that run Qwen3 235B-A22B (MoE) natively (16)
- NVIDIA B300 288GBNVFP4 · 136 t/s
- NVIDIA B200 180GBNVFP4 · 136 t/s
- NVIDIA H200 141GBQ3_K_M · 84.7 t/s
- NVIDIA DGX Spark (128GB)Q2_K · 6 t/s
- AMD Instinct MI300XQ4_K_M · 74.5 t/s
Show 11 more
- AMD Strix Halo (128GB)Q2_K · 5.6 t/s
- Apple M5 Ultra (512GB)Q8_0 · 12.1 t/s
- Apple M5 Ultra (256GB)Q6_K · 15.5 t/s
- Apple M5 Max (128GB)Q2_K · 16.6 t/s
- Apple M4 Max (128GB)Q2_K · 14.8 t/s
- Apple M3 Ultra (512GB)Q8_0 · 8.2 t/s
- Apple M3 Ultra (256GB)Q6_K · 10.6 t/s
- Apple M3 Max (128GB)Q2_K · 10.8 t/s
- Apple M2 Ultra (192GB)Q4_K_M · 13.8 t/s
- Apple M1 Ultra (128GB)Q2_K · 21.7 t/s
- Intel Data Center GPU Max 1550Q2_K · 72.1 t/s
Plus 1 GPUs that run it with CPU offload (slower)
- NVIDIA RTX Pro 6000Q2_K · 29.6 t/s
Notes
Flagship reasoning MoE: 235B total, 22B active. Needs multi-GPU server.
Compare Qwen3 235B-A22B (MoE) with other models
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Frequently asked questions
- What are the VRAM requirements for Qwen3 235B-A22B (MoE)?
- Qwen3 235B-A22B (MoE) requires approximately 162.1 GB of VRAM at Q4_K_M quantization, 281.6 GB at Q8, and 528.2 GB at FP16. These numbers assume 8k context window; VRAM scales linearly with context length due to the KV cache.
- How many parameters does Qwen3 235B-A22B (MoE) have?
- Qwen3 235B-A22B (MoE) has 235 billion total parameters, but only 22 billion are active per token thanks to its Mixture of Experts (MoE) architecture. This makes inference significantly faster than the total parameter count suggests.
- How capable is Qwen3 235B-A22B (MoE)?
- Qwen3 235B-A22B (MoE) achieves an MMLU-Pro score of 84.4, placing it among the most capable open-weight models available, competitive with frontier systems on general knowledge and reasoning.
- Can Qwen3 235B-A22B (MoE) run on a 16 GB GPU?
- No. At Q4_K_M, Qwen3 235B-A22B (MoE) needs 162.1 GB of VRAM, more than 16 GB. You will need a multi-GPU server.
- Can Qwen3 235B-A22B (MoE) run on a 24 GB GPU?
- No. Even at Q4_K_M, Qwen3 235B-A22B (MoE) needs 162.1 GB. Consider a multi-GPU server with 163 GB+ of combined VRAM.
- What is the smallest quantization for Qwen3 235B-A22B (MoE) that fits in 24 GB of VRAM?
- Qwen3 235B-A22B (MoE) cannot fit in 24 GB of VRAM at any standard quantization level. The minimum needed is 102.0 GB at Q2_K.
- What GPU do I need to run Qwen3 235B-A22B (MoE) locally?
- You need a multi-GPU server. At Q4_K_M, Qwen3 235B-A22B (MoE) needs 162.1 GB VRAM, more than any single consumer GPU. That's roughly 3x 80 GB datacenter GPUs (H100, A100, or similar) pooled together.