Question 1

Can GTX 1660 Ti 6GB run AI21 Jamba2 3B?

Accepted Answer

Yes, GTX 1660 Ti 6GB can run AI21 Jamba2 3B with a B grade (Runs well). Expected decode speed: 113.3 tok/s.

Question 2

How much VRAM does AI21 Jamba2 3B need?

Accepted Answer

AI21 Jamba2 3B (3B parameters) requires approximately 4.4 GB of memory with Q4_K_M quantization.

Question 3

What is the best quantization for AI21 Jamba2 3B?

Accepted Answer

The recommended quantization for AI21 Jamba2 3B is Q4_K_M, which balances quality and memory efficiency.

Workload	Grade	Fit	Decode	TTFT	Context
Agentic Coding	B	Runs well	86.6 tok/s	3253 ms	42K
Chat	B	Runs well	86.6 tok/s	1220 ms	11K
Coding	B	Runs well	113.3 tok/s	1709 ms	22K
RAG	B	Runs well	86.6 tok/s	4067 ms	42K
Reasoning	B	Runs well	86.6 tok/s	2643 ms	22K

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.2 GB	Low	D33
Q3_K_S	3	1.5 GB	Low	D34
NVFP4	4

Can GTX 1660 Ti 6GB run AI21 Jamba2 3B?

Memory breakdown