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GeForce GTX 580 3GB vs Radeon R9 285

Intro

The GeForce GTX 580 3GB makes use of a 40 nm design. nVidia has clocked the core speed at 772 MHz. The GDDR5 memory runs at a frequency of 1002 MHz on this model. It features 512 SPUs along with 64 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon R9 285, which makes use of a 28 nm design. AMD has clocked the core frequency at 918 MHz. The GDDR5 RAM is set to run at a frequency of 1375 MHz on this card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285 190 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 54 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB will be 9% quicker than the Radeon R9 285 overall, because of its higher bandwidth. (explain)

GeForce GTX 580 3GB 192384 MB/sec
Radeon R9 285 176000 MB/sec
Difference: 16384 (9%)

Texel Rate

The Radeon R9 285 will be a lot (about 108%) more effective at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

Radeon R9 285 102816 Mtexels/sec
GeForce GTX 580 3GB 49408 Mtexels/sec
Difference: 53408 (108%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 3GB is a better choice, by a large margin. (explain)

GeForce GTX 580 3GB 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 3GB

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 3GB Radeon R9 285
Manufacturer nVidia AMD
Year November 2010 September 2014
Code Name GF110 Tonga PRO
Memory 3072 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: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 580 3GB

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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