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GeForce GTX 580 3GB vs Radeon HD 6750 1GB

Intro

The GeForce GTX 580 3GB features a core clock frequency of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also makes use of a 384-bit bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 ROPs.

Compare those specs to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific card. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator 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 is 201% faster than the Radeon HD 6750 1GB in general, due to its higher bandwidth. (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 is 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 will be much (approximately 219%) faster with regards to anti-aliasing than the Radeon HD 6750 1GB, and should be able to handle higher screen 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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max 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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