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GeForce GTX 580 vs Radeon HD 7750


The GeForce GTX 580 uses a 40 nm design. nVidia has clocked the core speed at 772 MHz. The GDDR5 memory is set to run at a frequency of 1002 MHz on this particular card. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Compare those specs to the Radeon HD 7750, which features a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GTX 580 244 Watts
Difference: 189 Watts (344%)

Memory Bandwidth

The GeForce GTX 580 should theoretically be a lot faster than the Radeon HD 7750 overall. (explain)

GeForce GTX 580 192384 MB/sec
Radeon HD 7750 72000 MB/sec
Difference: 120384 (167%)

Texel Rate

The GeForce GTX 580 is quite a bit (approximately 93%) better at texture filtering than the Radeon HD 7750. (explain)

GeForce GTX 580 49408 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 23808 (93%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 580 is the winner, by a large margin. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon HD 7750 12800 Mpixels/sec
Difference: 24256 (190%)

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

Radeon HD 7750

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.


Display Specifications

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Model GeForce GTX 580 Radeon HD 7750
Manufacturer nVidia AMD
Year November 2010 February 2012
Code Name GF110 Cape Verde Pro
Memory 1536 MB 1024 MB
Core Speed 772 MHz 800 MHz
Memory Speed 4008 MHz 4500 MHz
Power (Max TDP) 244 watts 55 watts
Bandwidth 192384 MB/sec 72000 MB/sec
Texel Rate 49408 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 512 512
Texture Mapping Units 64 32
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 1500 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred 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 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.


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