How much VRAM does Command A 111B need?

Command A 111B (111B parameters) requires approximately 89.1 GB of memory with Q4_K_M quantization.

What is the best quantization for Command A 111B?

The recommended quantization for Command A 111B is Q4_K_M, which balances quality and memory efficiency.

Can it run?

No, Command A 111B requires more memory than RX 6900 XT 16GB provides.

FWon't run

Too heavy

Using Q4_K_M in vLLM

Capabilities:

Fit status

Too heavy

Decode

5.4 tok/s

TTFT

35560 ms

Safe context

Memory

89.1 GB / 16.0 GB

Weights67.7 GB

KV Cache17.3 GB

Runtime2.4 GB

Headroom1.6 GB

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	F	Too heavy	4.3 tok/s	65334 ms	5K
Chat	F	Too heavy	4.3 tok/s	24500 ms	4K
Coding	F	Too heavy	5.4 tok/s	35560 ms	4K
RAG	F	Too heavy	4.3 tok/s	81668 ms	5K
Reasoning	F	Too heavy	4.3 tok/s	53084 ms	4K

How Command A 111B (111B params) fits at each quantization level on RX 6900 XT 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	43.3 GB	Low	F0
Q3_K_S	3	54.4 GB	Low	F0
NVFP4	4

Upgrade options

MacBook Pro M3 Max 128GBBest value

D3.4 tok/s decode

~$2,499 MSRP

AMD Instinct MI350X 288GBBudget pick

C86.3 tok/s decode

~$8,000 MSRP

NVIDIA H200 141GBBiggest leap