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GeForce GTX 580 vs Radeon R9 285

Intro

The GeForce GTX 580 features a GPU core speed of 772 MHz, and the 1536 MB of GDDR5 memory runs at 1002 MHz through a 384-bit bus. It also is made up of 512 Stream Processors, 64 Texture Address Units, and 48 ROPs.

Compare those specifications to the Radeon R9 285, which has a clock frequency of 918 MHz and a GDDR5 memory frequency of 1375 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It features 1792 SPUs, 112 Texture Address Units, 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 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

The GeForce GTX 580 should theoretically perform just a bit faster than the Radeon R9 285 in general. (explain)

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

Texel Rate

The Radeon R9 285 should be much (approximately 108%) better at AF than the GeForce GTX 580. (explain)

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

Pixel Rate

The GeForce GTX 580 will be a lot (more or less 26%) faster with regards to anti-aliasing than the Radeon R9 285, and also should be capable of handling higher resolutions while still performing well. (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: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out 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 graphics 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 maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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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.

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