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Qwen · Mixture of Experts · 2025-04

Qwen3 30B-A3B: how much VRAM?

In Q4_K_M with 8k tokens of context, Qwen3 30B-A3B needs about 20 GB of memory. The cheapest option: 2 × RTX 3060 12 GB (€1,460 for the complete machine).

Model sheet

Parameters31 B
Active / token3.3 B
Cache / 1k tok.96 MB
ollama run qwen3:30b

Weights on Hugging Face: Qwen/Qwen3-30B-A3B

VRAM by precision and context

Precision4k8k32k128k
FP1665 GB65 GB67 GB76 GB
FP833 GB33 GB35 GB44 GB
Q8_035 GB35 GB37 GB46 GB
Q6_K27 GB27 GB30 GB39 GB
Q4_K_M20 GB20 GB23 GB32 GB
Q3_K_M16 GB17 GB19 GB28 GB

One user. Each simultaneous user adds their own context cache.

Frequently asked questions

How much VRAM does Qwen3 30B-A3B need?

With an 8k-token context and one user, Qwen3 30B-A3B needs about 20 GB in Q4, 35 GB in Q8 and 65 GB in FP16.

What is the cheapest hardware to run Qwen3 30B-A3B?

In Q4, the cheapest option in our catalogue to run Qwen3 30B-A3B is 2 × RTX 3060 12 GB, about €1,460 for the complete machine.

How fast does Qwen3 30B-A3B run?

Expect around 139 tokens per second for one user on 2 × RTX 3060 12 GB in Q4 (estimate based on memory bandwidth).

On which hardware?

HardwareCardsSpeedMachine
RTX 3060 12 GB2 cards~139 tok/s€1,460
RTX 3090 24 GB (used)1 is enough~242 tok/s€1,650
RTX 4060 Ti 16 GB2 cards~112 tok/s€1,800
Radeon RX 7900 XTX 24 GB1 is enough~248 tok/s€1,850
Radeon RX 7800 XT 16 GB2 cards~242 tok/s€1,900
RTX 4070 12 GB2 cards~195 tok/s€2,000
Mini-PC Ryzen AI Max+ 395 128 GB1 is enough~66 tok/s€2,300
RTX 4070 Ti SUPER 16 GB2 cards~260 tok/s€2,600
RTX 4090 24 GB1 is enough~260 tok/s€2,900
RTX 4080 SUPER 16 GB2 cards~285 tok/s€3,000
RTX 5080 16 GB2 cards~372 tok/s€3,300
RTX 5090 32 GB1 is enough~463 tok/s€3,500
NVIDIA DGX Spark 128 GB1 is enough~70 tok/s€4,000
Mac Studio M4 Max 128 GB1 is enough~141 tok/s€4,400
RTX 6000 Ada 48 GB1 is enough~248 tok/s€7,900
RTX PRO 6000 Blackwell 96 GB1 is enough~463 tok/s€9,900
Mac Studio M3 Ultra 512 GB1 is enough~211 tok/s€11,500
L40S 48 GB1 is enough~223 tok/s€13,500
A100 80 GB1 is enough~527 tok/s€17,000
H100 80 GB1 is enough~865 tok/s€34,000
H200 141 GB1 is enough~1,239 tok/s€39,000
B200 192 GB1 is enough~2,066 tok/s€48,000

Estimated complete machine: cards + host PC (€900 for 1–2 consumer cards, €2,800 beyond, a €6,000 server for datacenter cards). Macs and mini-PCs are sold complete.

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