NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GTX 660

Compare NVIDIA GeForce RTX 2080 8 GB vs NVIDIA GeForce GTX 660 3 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Benchmark Score

Overall Score

General gaming and workstation score

7102 points

770% significantly better overall score

816 points

Flux Core frame rate

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

161 FPS

143 FPS significantly higher Flux Core frame rate

18 FPS

Electron frame rate

Randomly generated noise sphere test

97 FPS

86 FPS significantly higher Electron frame rate

11 FPS

City frame rate

Procedurally generated city scene with voxel rendering

114 FPS

102 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

73 FPS

64 FPS significantly higher Clouds frame rate

9 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

11016 points

736% significantly higher 3DMark Graphics score

1317 points

Blender score

Cycles Render (Samples per minute)

2341.39 points

1810% significantly higher Blender score

122.56 points

Geekbench 5 (CUDA) score

CUDA compute benchmark

120612 points

1305% significantly higher Geekbench 5 (CUDA) score

8583 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

105930 points

830% significantly higher Geekbench 5 (OpenCL) score

11381 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

87178 points

715% significantly higher Geekbench 5 (Vulkan) score

10693 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

112025 points

886% significantly higher Geekbench 6 (OpenCL) score

11353 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

107797 points

809% significantly higher Geekbench 6 (Vulkan) score

11858 points

Specifications

Core Clock Speed

Nominal chip frequency

1515 MHz

54% significantly higher core clock speed

980 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1710 MHz

65% significantly higher boost clock speed

1032 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

166% significantly more memory

3 GiB

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

33% slightly larger memory bus width

192 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

448 GB/s

210% significantly higher memory bandwidth

144.2 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

250 W

140 W

78% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

109.4 Gigapixels/s

430% significantly higher pixel rate

20.64 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

314.6 Gigatexels/s

281% significantly higher texture rate

82.56 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

10.07 TFLOPS

408% significantly better floating point performance

1.98 TFLOPS

Shading Units

Number of processors dedicated to shader processing

2944

206% significantly more shading units

960

Texture Mapping Units

Number of processors dedicated to applying textures

184

129% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

166% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

67th of 586

278th of 586

Release date

The official date of release of this chip

2018 September

Memory Type

The type of memory used by this chip

GDDR6

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

GeForce RTX 2080 vs GeForce GTX 660 benchmarks

For gaming, the GeForce RTX 2080 graphics card is better than the GeForce GTX 660 in our tests.

The GeForce RTX 2080 has a significantly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the GeForce RTX 2080 also has a significantly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, the GeForce RTX 2080 has significantly more memory with 8 GiB of memory compared to 3 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the GeForce GTX 660 has a significantly lower TDP at 140 W when compared to the GeForce RTX 2080 at 250 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In terms of raw gaming performance in our GPU benchmark, the GeForce RTX 2080 is better than the GeForce GTX 660.