Hardware

GeForce GTX 1660 Super

GeForce GTX 1660 Super has 6 GB GDDR6 and 336 GB/s. See which open models fit, at which quant, and roughly how fast. Figures below use the default memory (6 GB), 32 GB system RAM, and DDR5-5600 for anything that spills. Updated 2026-10-17.

Memory6 GB GDDR6

Bandwidth336 GB/s

Kindgpu

Year2019

192-bit GDDR6 at 14 Gbps = 336 GB/s. Source.

RSS for new models on this device

Models that fit

Model	Verdict	Quant	Context	tok/s
Qwen2.5 VL 7B Instruct 7.6B	Tight fit	UD-Q4_K_XL	4K	37–50
gemma 4 E4B it qat 7.5B	Runs	UD-Q4_K_XL	8K	38–51
Qwen2.5 7B Instruct 7.6B	Tight fit	Q4_K_M	4K	38–51
DeepSeek R1 Distill Qwen 7B 7.6B	Tight fit	Q4_K_M	4K	38–51
Qwen2.5 Coder 7B Instruct 128K 7.6B	Tight fit	Q4_K_M	4K	38–51
gemma 4 E4B it 7.5B	Tight fit	Q4_K_M	4K	35–47
DeepSeek R1 Distill Llama 8B 8.0B	Tight fit	IQ4_XS	4K	37–50
Llama 3.1 8B Instruct 8.0B	Tight fit	IQ4_XS	4K	37–50
Apertus 8B Instruct 2509 8.1B	Tight fit	IQ4_XS	4K	37–50
MiMo V2.6 Distill Qwen 9B 9.0B	Tight fit	Q3_K_L	8K	38–51
gemma 4 12b it 11.9B	Tight fit	UD-IQ3_XXS	2K	34–46
Qwen3.5 9B 9.0B	Tight fit	Q3_K_M	8K	37–51
Ministral 3 8B Instruct 2512 8.5B	Tight fit	UD-Q3_K_XL	4K	37–50
Ministral 3 8B Reasoning 2512 8.5B	Tight fit	UD-Q3_K_XL	4K	37–50
Qwen3 VL 8B Instruct 8.2B	Tight fit	UD-Q3_K_XL	4K	38–51
DeepSeek R1 0528 Qwen3 8B 8.2B	Tight fit	UD-Q3_K_XL	4K	38–51
Qwen3 8B 8.2B	Tight fit	UD-Q3_K_XL	4K	38–51
Qwen3 VL 8B Thinking 8.2B	Tight fit	UD-Q3_K_XL	4K	38–51
LFM2.5 8B A1B 8.5B	Tight fit	UD-IQ4_XS	8K	204–278
gemma 4 E2B it 4.6B	Tight fit	Q8_0	8K	35–47
Qwen3 14B 14.8B	Tight fit	UD-IQ1_M	4K	39–53
GLM 4.6V Flash 9.4B	Tight fit	Q3_K_S	8K	38–51
GLM Z1 9B 0414 9.4B	Tight fit	Q3_K_S	8K	38–51
GLM 4 9B 0414 9.4B	Tight fit	Q3_K_S	8K	38–51
GLM 4.1V 9B Thinking 9.4B	Tight fit	Q3_K_S	8K	38–51
Qwen3.5 4B 4.2B	Tight fit	Q8_0	8K	39–53
Ministral 3 14B Instruct 2512 13.5B	Tight fit	UD-IQ2_XXS	4K	39–53
Ministral 3 14B Reasoning 2512 13.5B	Tight fit	UD-IQ2_XXS	4K	39–53
Qwen3 4B 4.0B	Tight fit	Q8_0	4K	38–52
Qwen3 VL 4B Instruct 4.0B	Tight fit	Q8_0	4K	38–52
Qwen3 4B Thinking 2507 4.0B	Tight fit	Q8_0	4K	38–52
Qwen3 VL 4B Thinking 4.0B	Tight fit	Q8_0	4K	38–52
NVIDIA Nemotron 3 Nano 4B 4.0B	Tight fit	Q8_0	4K	37–51
gemma 3 4b it 3.9B	Tight fit	Q8_0	8K	35–48
medgemma 4b it 3.9B	Tight fit	Q8_0	8K	35–48
Phi 4 mini instruct 3.8B	Tight fit	Q8_0	4K	40–55
Phi 4 mini reasoning 3.8B	Tight fit	Q8_0	4K	40–55
Ministral 3 3B Instruct 2512 3.4B	Tight fit	Q8_0	8K	41–56
Ministral 3 3B Reasoning 2512 3.4B	Tight fit	UD-Q8_K_XL	4K	37–51
granite 4.0 h micro 3.2B	Runs	UD-Q8_K_XL	8K	47–65

90 more models in the catalog do not fit this default profile, or ranked below the first 40 that do.

Example: Tight fit fully on your GeForce GTX 1660 Super at UD-Q4_K_XL, 4K context, about 37–50 tok/s. Weights 4.46 GB plus 0.22 GB of KV cache — 5.02 GB of 5.22 GB usable. Weights shown in the verdict use GiB (the same 1024³ counting as GPU memory).