GeForce GTX 560 Ti 448 vs Radeon HD 5970

Intro

Compare those specs to the Radeon HD 5970, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 1600 SPUs as well as 160 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448		210 Watts
Radeon HD 5970		294 Watts
	Difference: 84 Watts (40%)

Memory Bandwidth

In theory, the Radeon HD 5970 should be 78% quicker than the GeForce GTX 560 Ti 448 overall, because of its greater data rate. (explain)

Radeon HD 5970		256000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 112000 (78%)

Texel Rate

The Radeon HD 5970 is much (approximately 466%) more effective at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 191008 (466%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5970 is the winner, by far. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce GTX 560 Ti 448		29280 Mpixels/sec
	Difference: 63520 (217%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.