NVIDIA GeForce GTX 1660 vs NVIDIA GeForce GTX 645

Compare NVIDIA GeForce GTX 1660 6 GB vs NVIDIA GeForce GTX 645 1 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Other Benchmarks
Specifications
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NVIDIA GeForce GTX 645

Price

The cheapest price from our partner retailers

$ 229.39

$ 108.02

$ 121.37 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

3653 points

1129% significantly better overall score

297 points

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

82 FPS

74 FPS significantly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

49 FPS

45 FPS significantly higher Electron frame rate

4 FPS

City frame rate

Procedurally generated city scene with voxel rendering

60 FPS

56 FPS significantly higher City frame rate

4 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

37 FPS

33 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

722.48 points

1661% significantly higher Blender score

41.03 points

Geekbench 5 (CUDA) score

CUDA compute benchmark

60503 points

1566% significantly higher Geekbench 5 (CUDA) score

3630 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

55712 points

967% significantly higher Geekbench 5 (OpenCL) score

5217 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

59886 points

1035% significantly higher Geekbench 6 (OpenCL) score

5274 points

Specifications

Memory

Onboard memory size for textures and vertices

6 GiB

499% significantly more memory

1 GiB

TDP

Thermal Design Power: Measure of heat generated by the GPU

120 W

64 W

87% significantly lower TDP

Other details

Rank

Ranking in the hardwareDB database

134th of 596

384th of 596

Release date

The official date of release of this chip

2019 March

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.5

GeForce GTX 1660 vs GeForce GTX 645 comparison

For gaming, the GeForce GTX 1660 graphics card is better than the GeForce GTX 645 in our tests.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 1660 has significantly more memory with 6 GiB of memory compared to 1 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the GeForce GTX 645 has a significantly lower TDP at 64 W when compared to the GeForce GTX 1660 at 120 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In terms of raw gaming performance in our GPU benchmark, the GeForce GTX 1660 is better than the GeForce GTX 645.