GeForce GTX 560 Ti vs Radeon HD 5570

Intro

Compare that to the Radeon HD 5570, which comes with GPU clock speed of 650 MHz, and 512 MB of DDR3 memory running at 900 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 127 Watts (295%)

Memory Bandwidth

The GeForce GTX 560 Ti should in theory be a lot faster than the Radeon HD 5570 in general. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 99456 (345%)

Texel Rate

The GeForce GTX 560 Ti is much (approximately 305%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 39608 (305%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 560 Ti is the winner, by a large margin. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 21104 (406%)

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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's 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 higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.