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GeForce GTX 580 vs Radeon R9 M295X

Intro

The GeForce GTX 580 has a GPU clock speed of 772 MHz, and the 1536 MB of GDDR5 memory is set to run at 1002 MHz through a 384-bit bus. It also is comprised of 512 SPUs, 64 TAUs, and 48 Raster Operation Units.

Compare those specifications to the Radeon R9 M295X, which has core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
GeForce GTX 580 244 Watts
Difference: 119 Watts (95%)

Memory Bandwidth

In theory, the GeForce GTX 580 will be 9% quicker than the Radeon R9 M295X in general, because of its higher bandwidth. (explain)

GeForce GTX 580 192384 MB/sec
Radeon R9 M295X 176000 MB/sec
Difference: 16384 (9%)

Texel Rate

The Radeon R9 M295X is much (approximately 94%) better at anisotropic filtering than the GeForce GTX 580. (explain)

Radeon R9 M295X 96000 Mtexels/sec
GeForce GTX 580 49408 Mtexels/sec
Difference: 46592 (94%)

Pixel Rate

The GeForce GTX 580 is much (more or less 54%) better at FSAA than the Radeon R9 M295X, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 13056 (54%)

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 M295X

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 M295X
Manufacturer nVidia AMD
Year November 2010 2014
Code Name GF110 Unknown
Memory 1536 MB 4096 MB
Core Speed 772 MHz 750 MHz
Memory Speed 4008 MHz 5500 MHz
Power (Max TDP) 244 watts 125 watts
Bandwidth 192384 MB/sec 176000 MB/sec
Texel Rate 49408 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 512 2048
Texture Mapping Units 64 128
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video 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 maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 580

Amazon.com

Check prices at:

Radeon R9 M295X

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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