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All estimates are approximations based on mathematical models and public specifications. Actual performance may vary. Do not make purchasing decisions based solely on these estimates.

Data sourced from Hugging Face, Ollama, and official model documentation. Model names and logos are trademarks of their respective owners.

© 2026 Will It Run AI — Fase Consulting Ibiza, S.L. (NIF: B57969656)

Home/Qwen3.5 4B/on RTX PRO 5000 Blackwell 48GB

Can it run?

Can RTX PRO 5000 Blackwell 48GB run Qwen3.5 4B?

CUsable

Runs well

Using Q4_K_M in Ollama

Capabilities:

Fit status

Runs well

Decode

462.7 tok/s

TTFT

418 ms

Safe context

83K

Memory

9.2 GB / 48.0 GB

Memory breakdown

Weights2.4 GB
KV Cache0.8 GB
Runtime1.2 GB
Headroom4.8 GB

Performance by workload

WorkloadGradeFitDecodeTTFTContext
Agentic CodingCRuns well462.7 tok/s609 ms159K
ChatCRuns well462.7 tok/s350 ms42K
CodingCRuns well462.7 tok/s418 ms83K
RAGCRuns well462.7 tok/s761 ms159K
ReasoningCRuns well462.7 tok/s495 ms83K

Quantization options

How Qwen3.5 4B (4B params) fits at each quantization level on RTX PRO 5000 Blackwell 48GB (48.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.6 GB
LowD30
Q3_K_S
3
2.0 GB
LowD30
NVFP4
4
2.2 GB
MediumD30
Q4_K_M
4
2.4 GB
MediumD31
Q5_K_M
5
2.9 GB
HighD31
Q6_K
6
3.3 GB
HighD31
Q8_0
8
4.3 GB
Very HighD31
F16Best for your GPU
16
8.2 GB
MaximumD33

Get started

Upgrade options

Hardware that runs Qwen3.5 4B well

AppleMacBook Pro M4 Max 96GBBudget pick
C141 tok/s decode

~$2,499 MSRP

AppleMacBook Pro M3 Max 128GBBest value
C98.4 tok/s decode

~$2,499 MSRP

AppleMacBook Pro M2 Max 96GBBiggest leap
C95.1 tok/s decode

~$3,199 MSRP

See all results for RTX PRO 5000 Blackwell 48GBSee all hardware for Qwen3.5 4B