Can Agents-A1 4B run on GTX 1660 Super 6GB?

YES — Runs Great

A81Great

Estimated from fit model

Agents-A1 4B needs ~4.7 GB VRAM. GTX 1660 Super 6GB has 6.0 GB. With Q4_K_M quantization, expect ~55 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: LowStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 4.7 GB, 54.8 tok/s, Runs well

4.7 GB required6.0 GB available

78% VRAM used

Fit status

Runs well

Decode

54.8 tok/s

TTFT

3530 ms

Safe context

58K

Memory

4.7 GB / 6.0 GB

Memory breakdown

Weights2.7 GB

KV Cache0.5 GB

Runtime0.9 GB

Headroom0.6 GB

See how fast it feels

See how fast it feelsAgents-A1 4B on GTX 1660 Super 6GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
  - Speed = 60 mph (miles per hour)
  - Time  = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
  Distance = 60 mph x 2.5 h
           = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
  - First half: 1.25 hours at 60 mph = 75 miles
  - Stop: 20 minutes (no distance)
  - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 54.8 tok/s decode · 3.5s TTFT (warm) · 137 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Older PCIe generation

PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	54.8 tok/s	1925 ms	58K
Coding	A	Runs well	54.8 tok/s	3530 ms	58K
Agentic Coding	A	Tight fit	54.8 tok/s	5134 ms	58K
Reasoning	A	Runs well	54.8 tok/s	4172 ms	58K
RAG	A	Tight fit	54.8 tok/s	6418 ms	58K

Inference speed

Agents-A1 4B inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for Agents-A1 4B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~86 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.

GPU / Mac	Memory	Quant	Speed (tok/s)	Fits?
RTX 5090 32GB	32 GB	Q4_K_M	85.5	Fits
RTX 4090 24GB	24 GB	Q4_K_M	72.0	Fits
RTX 4080 Super 16GB	16 GB	Q4_K_M	72.0	Fits
RTX 3090 24GB	24 GB	Q4_K_M	63.0	Fits
RTX 4070 12GB	12 GB	Q4_K_M	63.0	Fits
RTX 3060 12GB	12 GB	Q4_K_M	63.0	Fits
RTX 4060 8GB	8 GB	Q4_K_M	63.0	Fits
RX 7900 XTX 24GB	24 GB	Q4_K_M	63.0	Fits
MacBook Pro M4 Max 128GB	128 GB	Q4_K_M	63.0	Fits
Mac Studio M3 Ultra 256GB	256 GB	Q4_K_M	63.0	Fits
Mac Studio M2 Ultra 128GB	128 GB	Q4_K_M	63.0	Fits
Mac Studio M1 Ultra 128GB	128 GB	Q4_K_M	63.0	Fits
MacBook Pro M4 Max 64GB	64 GB	Q4_K_M	63.0	Fits
MacBook Pro M3 Max 64GB	64 GB	Q4_K_M	63.0	Fits
MacBook Pro M1 Max 64GB	64 GB	Q4_K_M	63.0	Fits
MacBook Pro M4 Pro 48GB	48 GB	Q4_K_M	57.4	Fits

Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.

Quantization options

How Agents-A1 4B (4.5B params) fits at each quantization level on GTX 1660 Super 6GB (6.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q1_0_G128	1.125	0.6 GB	Very Low	A78
Q2_0_G128	1.71	1.2 GB	Low	A79
Q2_K	2	1.8 GB	Low	A81
Q3_K_S	3	2.2 GB	Low	A80
NVFP4	4	2.5 GB	Medium	A80
Q4_K_M	4	2.7 GB	Medium	A80
Q5_K_MBest for your GPU	5	3.2 GB	High	A80
Q6_K	6	3.7 GB	High	F0
Q8_0	8	4.8 GB	Very High	F0
F16	16	9.2 GB	Maximum	F0

Get started

Copy-paste commands to run Agents-A1 4B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "InternScience/Agents-A1-4B" \
  --hf-file "Agents-A1-4B-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Your hardware

More models your GTX 1660 Super 6GB can run

Model	Params	Grade	Decode
1-bit Bonsai 27B	27B	A	26.3 tok/s
Qwen 2.5 VL 7B	7B	B	27.6 tok/s
Qwen 2.5 7B	7B	B	27.6 tok/s

Frequently asked questions

Can GTX 1660 Super 6GB run Agents-A1 4B?

Yes, GTX 1660 Super 6GB can run Agents-A1 4B with a A grade (Runs well). Expected decode speed: 54.8 tok/s.

How much VRAM does Agents-A1 4B need?

Agents-A1 4B (4.5B parameters) requires approximately 4.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Agents-A1 4B?

The recommended quantization for Agents-A1 4B is Q4_K_M, which balances quality and memory efficiency.

What speed will Agents-A1 4B run at on GTX 1660 Super 6GB?

On GTX 1660 Super 6GB, Agents-A1 4B achieves approximately 54.8 tokens per second decode speed with a time-to-first-token of 3530ms using Q4_K_M quantization.

Can GTX 1660 Super 6GB run Agents-A1 4B for coding?

For coding workloads, Agents-A1 4B on GTX 1660 Super 6GB receives a A grade with 54.8 tok/s and 58K context.

What context window can Agents-A1 4B use on GTX 1660 Super 6GB?

On GTX 1660 Super 6GB, Agents-A1 4B can safely use up to 58K tokens of context. The model's official context limit is 262K, but available memory constrains the safe maximum.

See all results for GTX 1660 Super 6GB See all hardware for Agents-A1 4B

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