NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX 780 Ti

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

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

816 points

2374 points

190% significantly better overall score

Flux Core frame rate

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

18 FPS

51 FPS

32 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

11 FPS

34 FPS

23 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

35 FPS

22 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

27 FPS

18 FPS significantly higher Clouds frame rate

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1317 points

3376 points

156% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

122.56 points

344.38 points

180% significantly higher Blender score

Geekbench 5 (CUDA) score

CUDA compute benchmark

8583 points

20877 points

143% significantly higher Geekbench 5 (CUDA) score

Geekbench 5 (Metal) score

Metal compute benchmark

5449 points

12375 points

127% significantly higher Geekbench 5 (Metal) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

11381 points

25535 points

124% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

10693 points

27453 points

156% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (Metal) score

Metal compute benchmark

4311 points

18144 points

320% significantly higher Geekbench 6 (Metal) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

28485 points

150% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

27238 points

129% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

11% slightly higher core clock speed

875 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

11% slightly higher boost clock speed

928 MHz

Memory

Onboard memory size for textures and vertices

3 GiB

Identical

3 GiB

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

336.6 GB/s

133% 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

55.68 Gigapixels/s

169% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

222.7 Gigatexels/s

169% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

1.98 TFLOPS

5.34 TFLOPS

169% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

960

2880

200% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

240

200% 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

277th of 586

185th of 586

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 Ti benchmarks

In our benchmarks, the GeForce GTX 780 Ti beats the GeForce GTX 660 in gaming performance.

The GeForce GTX 660 has a slightly 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 GTX 660 also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that they both have the same amount of memory at 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 GTX 780 Ti at 250 W. TDP (Thermal Design Power) measures total heat output from the chip.

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