AMD Radeon R9 270 vs NVIDIA GeForce GTX 660

Compare AMD Radeon R9 270 2 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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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

807 points

816 points

1% slightly better overall score

Flux Core frame rate

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

19 FPS

0 FPS slightly higher Flux Core frame rate

18 FPS

Electron frame rate

Randomly generated noise sphere test

12 FPS

1 FPS slightly higher Electron frame rate

11 FPS

City frame rate

Procedurally generated city scene with voxel rendering

17 FPS

4 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

6 FPS

9 FPS

3 FPS significantly higher Clouds frame rate

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1610 points

22% slightly higher 3DMark Graphics score

1317 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

22331 points

96% significantly higher Geekbench 5 (OpenCL) score

11381 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

22701 points

99% significantly higher Geekbench 6 (OpenCL) score

11353 points

Specifications

Core Clock Speed

Nominal chip frequency

900 MHz

980 MHz

8% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

925 MHz

1032 MHz

11% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

2 GiB

3 GiB

49% significantly more memory

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

2 GB/s

144.2 GB/s

7109% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

150 W

140 W

7% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

29.6 Gigapixels/s

43% significantly higher pixel rate

20.64 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

74 Gigatexels/s

82.56 Gigatexels/s

11% slightly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

2.37 TFLOPS

19% slightly better floating point performance

1.98 TFLOPS

Shading Units

Number of processors dedicated to shader processing

1280

33% slightly more shading units

960

Texture Mapping Units

Number of processors dedicated to applying textures

Identical

Render Output Processors

Number of processors dedicated to final pixel rendering

33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

280th of 586

276th of 586

Family

The product line

Radeon R9 200 Series

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

4.6

4.5

Radeon R9 270 vs GeForce GTX 660 benchmarks

In our benchmarks, the Radeon R9 270 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 boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 660 has significantly more memory with 3 GiB of memory compared to 2 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 slightly lower TDP at 140 W when compared to the Radeon R9 270 at 150 W. TDP (Thermal Design Power) measures total heat output from the chip.

According to the results of the hardwareDB benchmark utility, the Radeon R9 270 is faster than the GeForce GTX 660.