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GeForce GTX 660 vs Radeon R7 260X

Intro

The GeForce GTX 660 comes with a GPU core clock speed of 980 MHz, and the 2048 MB of GDDR5 memory is set to run at 1502 MHz through a 192-bit bus. It also features 960 SPUs, 80 Texture Address Units, and 24 ROPs.

Compare those specs to the Radeon R7 260X, which has GPU clock speed of 1100 MHz, and 2048 MB of GDDR5 RAM set to run at 1625 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660 5063 points
Radeon R7 260X 4381 points
Difference: 682 (16%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X 115 Watts
GeForce GTX 660 140 Watts
Difference: 25 Watts (22%)

Memory Bandwidth

The GeForce GTX 660, in theory, should perform quite a bit faster than the Radeon R7 260X overall. (explain)

GeForce GTX 660 144192 MB/sec
Radeon R7 260X 104000 MB/sec
Difference: 40192 (39%)

Texel Rate

The GeForce GTX 660 should be quite a bit (about 27%) faster with regards to anisotropic filtering than the Radeon R7 260X. (explain)

GeForce GTX 660 78400 Mtexels/sec
Radeon R7 260X 61600 Mtexels/sec
Difference: 16800 (27%)

Pixel Rate

The GeForce GTX 660 will be a lot (more or less 34%) more effective at full screen anti-aliasing than the Radeon R7 260X, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 660 23520 Mpixels/sec
Radeon R7 260X 17600 Mpixels/sec
Difference: 5920 (34%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 660

Amazon.com

Check prices at:

Radeon R7 260X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 660 Radeon R7 260X
Manufacturer nVidia AMD
Year September 2012 October 2013
Code Name GK106 Bonaire XTX
Memory 2048 MB 2048 MB
Core Speed 980 MHz 1100 MHz
Memory Speed 6008 MHz 6500 MHz
Power (Max TDP) 140 watts 115 watts
Bandwidth 144192 MB/sec 104000 MB/sec
Texel Rate 78400 Mtexels/sec 61600 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 960 896
Texture Mapping Units 80 56
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 2080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 660

Amazon.com

Check prices at:

Radeon R7 260X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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