llmrun
AlibabaQwen 3Qwen3MoeForCausalLM

Qwen3 235B A22B — Hardware Requirements & GPU Compatibility

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Qwen3 235B A22B is the largest model in Alibaba Cloud's Qwen 3 series, a Mixture of Experts (MoE) model with 235 billion total parameters and approximately 22 billion active parameters per forward pass. The MoE architecture enables it to deliver performance competitive with the best available open-weight models while requiring significantly less compute per token than a comparably sized dense model. It supports hybrid thinking mode for flexible chain-of-thought reasoning. Due to its massive total parameter count, running Qwen3 235B A22B locally requires substantial VRAM to load all expert weights, typically needing multiple high-end professional GPUs even at reduced precision. In heavily quantized formats it becomes accessible on workstation-class multi-GPU setups. Released under the Apache 2.0 license.

235.1B params · MoE22B active41K contextApache 2.0295.6K downloads1.1K likes67.7K quant downloads

Qwen3 235B A22B runs on a 192 GB+ Mac or a datacenter GPU

Best local pick → Mac Pro M2 Ultra (192 GB) · Q4_K_M · 142.9 GB · ~23 tok/s

Macs from128 GB Q3_K_L · ~26 tok/s

Score 100#58 of 106 open#36 of 82 that fit ≤192 GBApache 2.0

Not set up for it?

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run Qwen3 235B A22B

One recommended way. Every other method, OS and quant is in the step-by-step guide.Each way opens a step-by-step guide for your OS and quant.

Recommended

Ollama
one command · needs Ollama installed
$ollama run hf.co/unsloth/Qwen3-235B-A22B-GGUF:Q4_K_M

Q4_K_M runs on one GH200 Grace Hopper Superchip 144 GB · 16K context

Download: Q4_K_M/Qwen3-235B-A22B-Q4_K_M-00001-of-00003.gguf142.15 GB + 2 partsunsloth

install, OS, other quants

Ways to runOther ways

each opens step-by-step

Run in cloud

Your own private copy · Q4_K_M · 96 GB GPU

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How Much VRAM Does Qwen3 235B A22B Need?

Select a quantization level; the listed hardware adheres to it.

QuantizationVRAM+32KRuns on
100.4 GB103.4 GB2-bit · K-quant — 2-bit quantization with K-quant improvementsRuns on Instinct MI250X 128 GB
103.3 GB106.3 GB3-bit small — 3-bit small quantizationRuns on Instinct MI250X 128 GB
115.1 GB118.1 GB3-bit medium — 3-bit medium quantizationRuns on Instinct MI250X 128 GB
121.0 GB123.9 GB3-bit large — 3-bit large quantizationRuns on Instinct MI250X 128 GB
141.6 GB144.5 GB4-bit medium — 4-bit medium quantization — most popular sweet spotRuns on GH200 Grace Hopper Superchip 144 GB
168 GB171 GB5-bit medium — 5-bit medium quantization — good quality/size tradeoffRuns on B200 192 GB
194.4 GB197.4 GB6-bit, very good — 6-bit quantization, very good qualityRuns on Instinct MI325X 256 GB
235.6 GB238.6 GB8-bit, near-lossless — 8-bit quantization, near-losslessRuns on Instinct MI325X 256 GB

Selected Q4_K_M

4-bit medium quantization

142.9GBat 16K context

Weights
141.1 GB
KV cache
1.6 GB
Overhead
0.3 GB

Server-class: ~142.9 GB at 16K context · one GH200 Grace Hopper Superchip 144 GB

Or .

Which Hardware Can Run Qwen3 235B A22B?

Q4_K_M · 141.6 GB

Qwen3 235B A22B (Q4_K_M) requires 141.6 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 185+ GB is recommended. Using the full 41K context window can add up to 3.8 GB, bringing total usage to 145.3 GB. No consumer GPU has enough memory. 4 devices with unified memory can run Qwen3 235B A22B, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), Mac Pro M2 Ultra (192 GB).

By VRAM tier · typical GPUs and Macs at Q4_K_M

Consumer GPUs (up to 32 GB) and Macs up to 96 GB: too small for this model (needs ≥ 101.8 GB)8 GB tier →12 GB tier →16 GB tier →24 GB tier →Macs →

How good is Qwen3 235B A22B?

The llmrun Score merges 9 public benchmark boards into a single figure, where 100 represents the average for open models.

Score vs VRAM in the ≤192 GB tier

  • Qwen3 235B A22B
  • Other models
  • Best Score for its VRAM

#36 of 82 that fit ≤192 GB

Each dot is a model at the best quant that fits ≤192 GB. The line steps up to the best Score available at each amount of VRAM; a dot below it is beaten by a model that needs no more memory.

Full ≤192 GB ranking →

Benchmarks

The 6 boards that weigh most in the llmrun Score, of 11 with a result for this model; badges show who ran the test.

  • GPQA Diamond

    Epoch AI · Apr 2025Independent

    70.7%

    #34/100 open

    Independent
  • LMArena Text

    LMArena · Oct 2026Arena

    1402.1

    #48/188 open

    Arena
  • MMLU-Pro

    TIGER-LabIndependent

    68.2%

    #41/146 open

    Independent
  • Aider Polyglot

    Epoch AI · Apr 2025Independent

    59.6%

    #3/18 open

    Independent
  • SimpleBench

    Epoch AI · Apr 2025Independent

    31.0%

    #15/25 open

    Independent
  • MATH Level 5

    Epoch AI · Apr 2025Independent

    68.9%

    #8/39 open

    Independent

In the ≤192 GB class

82 models fit ≤192 GB

Same Score, only models that fit ≤192 GB at their best quant: the ranking a ≤192 GB owner actually chooses from.

  1. #1

    131.9

    ~229 tok/s · 186.5 GB

  2. #2

    128.0

    ~151 tok/s · 191.4 GB

  3. #3

    127.6

    ~181 tok/s · 183.0 GB

  4. #4

    124.1

    ~228 tok/s · 185.1 GB

  5. #5

    122.0

    ~299 tok/s · 17.9 GB

  6. #6

    Inkling SmallThinking Machines

    119.6

    ~399 tok/s · 162.7 GB

Alternatives to Qwen3 235B A22B

Qwen 3 family · 79 models →

Official models with an llmrun Score, each answering one question; sizes are each model's default quant (usually Q4_K_M) with a 16K-token context.

Similar models

10
ModelScoreVRAMWhy it is similar
DeepSeek V4 Flash 0731DeepSeek127.6183 GBsimilar score
GLM 5.3 FlashZ.ai124.1205.2 GBsimilar score
DeepSeek V4 FlashDeepSeek115.3175.1 GBsimilar score
Qwen3.5 397B A17BAlibaba112.8242.6 GBsimilar score
MiniMax M3MiniMax112.6258 GBsimilar score
MiniMax M2.5MiniMax111.8139.6 GBsimilar score
Qwen3.5 122B A10BAlibaba109.475.5 GBsimilar score
GLM 4.7Z.ai109.1217.9 GBsimilar score
MiMo V2.5Xiaomi108.3187.6 GBsimilar score
GLM 4.6Z.ai103.1216.9 GBsimilar score
Fine-tunes & variants(1)

Specifications

Publisher
Alibaba
Family
Qwen 3
Parameters
235.1B
Active parameters
22.2B per token
Architecture
Qwen3MoeForCausalLM
Context Length
40,960 tokens
Vocabulary Size
151,936
Release Date
2025-04-27
License
Apache 2.0

Frequently Asked Questions

How much VRAM does Qwen3 235B A22B need?

Qwen3 235B A22B requires 141.6 GB of VRAM at Q4_K_M, or 470.7 GB at BF16. Full 41K context adds up to 3.8 GB (145.3 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 235.1B × 4.8 bits ÷ 8 = 141.1 GB

KV Cache + Overhead ≈ 0.5 GB (at 2K context + ~0.3 GB framework)

Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.

KV Cache + Overhead ≈ 4.2 GB (at full 41K context)

VRAM usage by quantization

141.6 GB
145.3 GB

Learn more about VRAM estimation →

Can NVIDIA GeForce RTX 5090 run Qwen3 235B A22B?

No — Qwen3 235B A22B requires at least 100.4 GB at Q2_K, which exceeds the NVIDIA GeForce RTX 5090's 32 GB of VRAM.

What's the best quantization for Qwen3 235B A22B?

For Qwen3 235B A22B, Q4_K_M (141.6 GB) offers the best balance of quality and VRAM usage. Q5_0 (147.4 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 100.4 GB.

VRAM requirement by quantization

Q2_K
100.4 GB
Q3_K_L
121.0 GB
Q4_K_M ★
141.6 GB
Q5_0
147.4 GB
Q5_K_M
168.0 GB
BF16
470.7 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Qwen3 235B A22B on a Mac?

Yes — Mac Pro M2 Ultra (128 GB) and 14 other Macs can run Qwen3 235B A22B, the smallest at Q3_K_L. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 141.6 GB of usable unified memory (RAM minus macOS overhead), from Mac Pro M2 Ultra (192 GB).

Can I run Qwen3 235B A22B locally?

Yes — Qwen3 235B A22B can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Qwen3 235B A22B?

At Q4_K_M, Qwen3 235B A22B can reach ~46 tok/s on AMD Instinct MI350X. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = 1000 ÷ (active GB ÷ (bandwidth GB/s × efficiency) × 1000 + layers × routing ms)

Mixture-of-Experts: just the active experts get read for each token, along with a fixed routing cost per layer.

Example: NVIDIA B200 → 13.4 GB active ÷ (8000 × 0.65) = 2.57 ms, plus 94 layers × 0.055 ms = 5.17 ms, so 1000 ÷ 7.74 ms = ~129 tok/s

Estimated speed at Q4_K_M (141.6 GB)

~129 tok/s
~129 tok/s
~107 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of Qwen3 235B A22B?

At Q4_K_M, the download is about 141.06 GB. The full-precision BF16 version is 470.19 GB. The smallest option (Q2_K) is 99.91 GB.

Which GPUs can run Qwen3 235B A22B?

No single consumer GPU has enough VRAM to run Qwen3 235B A22B at Q4_K_M (141.6 GB). Multi-GPU or professional hardware is required.

Which devices can run Qwen3 235B A22B?

4 devices with unified memory can run Qwen3 235B A22B at Q4_K_M (141.6 GB), including Mac Pro M2 Ultra (192 GB), Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), Mac Studio M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.