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GeForce GTX 560 vs Radeon HD 7950 3GB

Intro

The GeForce GTX 560 features a GPU core speed of 810 MHz, and the 1024 MB of GDDR5 RAM runs at 1001 MHz through a 256-bit bus. It also is comprised of 336 Stream Processors, 56 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 7950 3GB, which has core speeds of 800 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 150 Watts
Radeon HD 7950 3GB 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 3GB should theoretically be quite a bit superior to the GeForce GTX 560 in general. (explain)

Radeon HD 7950 3GB 240000 MB/sec
GeForce GTX 560 128128 MB/sec
Difference: 111872 (87%)

Texel Rate

The Radeon HD 7950 3GB will be quite a bit (approximately 98%) better at AF than the GeForce GTX 560. (explain)

Radeon HD 7950 3GB 89600 Mtexels/sec
GeForce GTX 560 45360 Mtexels/sec
Difference: 44240 (98%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 560 is a better choice, but only just. (explain)

GeForce GTX 560 25920 Mpixels/sec
Radeon HD 7950 3GB 25600 Mpixels/sec
Difference: 320 (1%)

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

Amazon.com

Check prices at:

Radeon HD 7950 3GB

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 560 Radeon HD 7950 3GB
Manufacturer nVidia AMD
Year May 2011 January 2012
Code Name GF114 Tahiti Pro
Memory 1024 MB 3072 MB
Core Speed 810 MHz 800 MHz
Memory Speed 4004 MHz 5000 MHz
Power (Max TDP) 150 watts 200 watts
Bandwidth 128128 MB/sec 240000 MB/sec
Texel Rate 45360 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 336 1792
Texture Mapping Units 56 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 4313 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 largest amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card 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 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 560

Amazon.com

Check prices at:

Radeon HD 7950 3GB

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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