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GeForce GTX 580 vs Radeon R9 285

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 memory. It features 512 SPUs along with 64 TAUs and 48 Rasterization Operator Units.

Compare all that to the Radeon R9 285, which comes with a clock frequency of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 32 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

Radeon R9 285 8500 points
GeForce GTX 580 4956 points
Difference: 3544 (72%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285 190 Watts
GeForce GTX 580 244 Watts
Difference: 54 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should perform a small bit faster than the Radeon R9 285 overall. (explain)

GeForce GTX 580 192384 MB/sec
Radeon R9 285 176000 MB/sec
Difference: 16384 (9%)

Texel Rate

The Radeon R9 285 will be much (about 108%) more effective at anisotropic filtering than the GeForce GTX 580. (explain)

Radeon R9 285 102816 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 53408 (108%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 580 is a better choice, and very much so. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon R9 285 29376 Mpixels/sec
Difference: 7680 (26%)

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 R9 285

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 R9 285
Manufacturer nVidia AMD
Year November 2010 September 2014
Code Name GF110 Tonga PRO
Memory 1536 MB 2048 MB
Core Speed 772 MHz 918 MHz
Memory Speed 4008 MHz 5500 MHz
Power (Max TDP) 244 watts 190 watts
Bandwidth 192384 MB/sec 176000 MB/sec
Texel Rate 49408 Mtexels/sec 102816 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 29376 Mpixels/sec
Unified Shaders 512 1792
Texture Mapping Units 64 112
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 5000 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.4

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR 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 AA, High Dynamic Range and high resolutions.

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

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

Display Prices

Hide Prices

GeForce GTX 580

Amazon.com

Check prices at:

Radeon R9 285

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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