GeForce GTX 560 Ti vs Radeon HD 7950 3GB

Intro

Compare all of that to the Radeon HD 7950 3GB, which features GPU core speed of 800 MHz, and 3072 MB of GDDR5 memory set to run at 1250 MHz through a 384-bit bus. It also is made up of 1792 SPUs, 112 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 30 Watts (18%)

Memory Bandwidth

The Radeon HD 7950 3GB, in theory, should perform a lot faster than the GeForce GTX 560 Ti overall. (explain)

Radeon HD 7950 3GB		240000 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 111744 (87%)

Texel Rate

The Radeon HD 7950 3GB should be quite a bit (more or less 70%) better at anisotropic filtering than the GeForce GTX 560 Ti. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 36992 (70%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 Ti is superior to the Radeon HD 7950 3GB, but only just. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 704 (3%)

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: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video 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 graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.