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GeForce GTX 580 3GB vs Radeon HD 6750 1GB

Intro

The GeForce GTX 580 3GB makes use of a 40 nm design. nVidia has set the core speed at 772 MHz. The GDDR5 memory is set to run at a speed of 1002 MHz on this particular model. It features 512 SPUs as well as 64 TAUs and 48 ROPs.

Compare those specifications to the Radeon HD 6750 1GB, which comes with a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB 86 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 158 Watts (184%)

Memory Bandwidth

In theory, the GeForce GTX 580 3GB should perform quite a bit faster than the Radeon HD 6750 1GB overall. (explain)

GeForce GTX 580 3GB 192384 MB/sec
Radeon HD 6750 1GB 64000 MB/sec
Difference: 128384 (201%)

Texel Rate

The GeForce GTX 580 3GB will be a lot (about 89%) better at texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 580 3GB 49408 Mtexels/sec
Radeon HD 6750 1GB 26100 Mtexels/sec
Difference: 23308 (89%)

Pixel Rate

The GeForce GTX 580 3GB should be a lot (about 219%) faster with regards to AA than the Radeon HD 6750 1GB, and also able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
Radeon HD 6750 1GB 11600 Mpixels/sec
Difference: 25456 (219%)

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 HD 6750 1GB

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 HD 6750 1GB
Manufacturer nVidia AMD
Year November 2010 January 2011
Code Name GF110 Juniper Pro
Memory 3072 MB 1024 MB
Core Speed 772 MHz 725 MHz
Memory Speed 4008 MHz 4000 MHz
Power (Max TDP) 244 watts 86 watts
Bandwidth 192384 MB/sec 64000 MB/sec
Texel Rate 49408 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 512 720
Texture Mapping Units 64 36
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour 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 fill 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 maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 580 3GB

Amazon.com

Check prices at:

Radeon HD 6750 1GB

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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