NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX 780

Compare NVIDIA GeForce GTX 660 3 GB vs NVIDIA GeForce GTX 780 6 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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GPU Comparison

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Benchmark Score

Overall Score

General gaming and workstation score

816 points

1799 points

120% significantly better overall score

Flux Core frame rate

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

18 FPS

37 FPS

18 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

11 FPS

26 FPS

14 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

26 FPS

14 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

22 FPS

13 FPS significantly higher Clouds frame rate

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1317 points

2833 points

115% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

122.56 points

311.05 points

153% significantly higher Blender score

Geekbench 5 (CUDA) score

CUDA compute benchmark

8583 points

18049 points

110% significantly higher Geekbench 5 (CUDA) score

Geekbench 5 (Metal) score

Metal compute benchmark

5449 points

9797 points

79% significantly higher Geekbench 5 (Metal) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

11381 points

21004 points

84% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

10693 points

21940 points

105% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (Metal) score

Metal compute benchmark

4311 points

10316 points

139% significantly higher Geekbench 6 (Metal) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

23273 points

104% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

24865 points

109% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

13% slightly higher core clock speed

863 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

14% slightly higher boost clock speed

902 MHz

Memory

Onboard memory size for textures and vertices

3 GiB

6 GiB

100% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

192 Bit

384 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

144.2 GB/s

288.4 GB/s

100% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

140 W

78% significantly lower TDP

250 W

Pixel Rate

Number of pixels that can be rendered per second

20.64 Gigapixels/s

43.3 Gigapixels/s

109% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

173.2 Gigatexels/s

109% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

1.98 TFLOPS

4.16 TFLOPS

109% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

960

2304

139% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

192

139% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

278th of 586

221st of 586

Release date

The official date of release of this chip

2013 May

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

11.0

OpenGL Support

Maximum version of OpenGL supported

4.5

GeForce GTX 660 vs GeForce GTX 780 comparison

According to the hardwareDB Benchmark, the GeForce GTX 780 GPU is faster than the GeForce GTX 660 in gaming.

Our database shows that the GeForce GTX 660 has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the GeForce GTX 660 also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 780 has significantly more memory with 6 GiB of memory compared to 3 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the GeForce GTX 660 has a significantly lower TDP at 140 W when compared to the GeForce GTX 780 at 250 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the GeForce GTX 780 over the GeForce GTX 660.