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GeForce GTX 560 vs Radeon HD 7870


The GeForce GTX 560 features core speeds of 810 MHz on the GPU, and 1001 MHz on the 1024 MB of GDDR5 RAM. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7870, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 150 Watts
Radeon HD 7870 175 Watts
Difference: 25 Watts (17%)

Memory Bandwidth

In theory, the Radeon HD 7870 should be 20% faster than the GeForce GTX 560 overall, due to its greater bandwidth. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 560 128128 MB/sec
Difference: 25472 (20%)

Texel Rate

The Radeon HD 7870 is quite a bit (about 76%) more effective at anisotropic filtering than the GeForce GTX 560. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 560 45360 Mtexels/sec
Difference: 34640 (76%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7870 is the winner, by a large margin. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 560 25920 Mpixels/sec
Difference: 6080 (23%)

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 560

Radeon HD 7870

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.


Display Specifications

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Model GeForce GTX 560 Radeon HD 7870
Manufacturer nVidia AMD
Year May 2011 March 2012
Code Name GF114 Pitcairn XT
Memory 1024 MB 2048 MB
Core Speed 810 MHz 1000 MHz
Memory Speed 4004 MHz 4800 MHz
Power (Max TDP) 150 watts 175 watts
Bandwidth 128128 MB/sec 153600 MB/sec
Texel Rate 45360 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 336 1280
Texture Mapping Units 56 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2800 million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.


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