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GeForce GTX 580 vs Radeon HD 6970

Intro

The GeForce GTX 580 comes with core clock speeds of 772 MHz on the GPU, and 1002 MHz on the 1536 MB of GDDR5 RAM. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Compare all of that to the Radeon HD 6970, which comes with GPU core speed of 880 MHz, and 2048 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 1536 SPUs, 96 TAUs, and 32 ROPs.

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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 580 4956 points
Radeon HD 6970 3470 points
Difference: 1486 (43%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 244 Watts
Radeon HD 6970 250 Watts
Difference: 6 Watts (2%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should be a bit faster than the Radeon HD 6970 in general. (explain)

GeForce GTX 580 192384 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 16384 (9%)

Texel Rate

The Radeon HD 6970 will be much (approximately 71%) better at texture filtering than the GeForce GTX 580. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 35072 (71%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 580 is the winner, by a large margin. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon HD 6970 28160 Mpixels/sec
Difference: 8896 (32%)

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 580

Amazon.com

Check prices at:

Radeon HD 6970

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 580 Radeon HD 6970
Manufacturer nVidia AMD
Year November 2010 December 2010
Code Name GF110 Cayman XT
Memory 1536 MB 2048 MB
Core Speed 772 MHz 880 MHz
Memory Speed 4008 MHz 5500 MHz
Power (Max TDP) 244 watts 250 watts
Bandwidth 192384 MB/sec 176000 MB/sec
Texel Rate 49408 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 512 1536
Texture Mapping Units 64 96
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2640 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at 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 can possibly record to its 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 580

Amazon.com

Check prices at:

Radeon HD 6970

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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