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GeForce GTX 580 vs Radeon HD 7870 XT

Intro

The GeForce GTX 580 features core speeds of 772 MHz on the GPU, and 1002 MHz on the 1536 MB of GDDR5 memory. It features 512 SPUs along with 64 TAUs and 48 Rasterization Operator Units.

Compare all of that to the Radeon HD 7870 XT, which comes with GPU clock speed of 925 MHz, and 2048 MB of GDDR5 RAM running at 1500 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

Radeon HD 7870 XT 6390 points
GeForce GTX 580 4956 points
Difference: 1434 (29%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT 185 Watts
GeForce GTX 580 244 Watts
Difference: 59 Watts (32%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should perform just a bit faster than the Radeon HD 7870 XT in general. (explain)

GeForce GTX 580 192384 MB/sec
Radeon HD 7870 XT 192000 MB/sec
Difference: 384 (0%)

Texel Rate

The Radeon HD 7870 XT should be a lot (approximately 80%) faster with regards to texture filtering than the GeForce GTX 580. (explain)

Radeon HD 7870 XT 88800 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 39392 (80%)

Pixel Rate

The GeForce GTX 580 is quite a bit (more or less 25%) more effective at anti-aliasing than the Radeon HD 7870 XT, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon HD 7870 XT 29600 Mpixels/sec
Difference: 7456 (25%)

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 7870 XT

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 7870 XT
Manufacturer nVidia AMD
Year November 2010 November 2012
Code Name GF110 Tahiti LE
Memory 1536 MB 2048 MB
Core Speed 772 MHz 925 MHz
Memory Speed 4008 MHz 6000 MHz
Power (Max TDP) 244 watts 185 watts
Bandwidth 192384 MB/sec 192000 MB/sec
Texel Rate 49408 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 29600 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 28 nm
Transistors 3000 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 a second - measured in millions of pixels per second. The number 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 580

Amazon.com

Check prices at:

Radeon HD 7870 XT

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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