GeForce GTX 570 vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which has GPU clock speed of 725 MHz, and 512 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is made up of 720 Stream Processors, 36 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 6750		86 Watts
GeForce GTX 570		219 Watts
	Difference: 133 Watts (155%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 will be 138% faster than the Radeon HD 6750 in general, due to its higher bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 88000 (138%)

Texel Rate

The GeForce GTX 570 should be much (more or less 68%) more effective at anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 570		43920 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 17820 (68%)

Pixel Rate

The GeForce GTX 570 will be quite a bit (more or less 152%) more effective at FSAA than the Radeon HD 6750, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 570		29280 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 17680 (152%)

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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.