GeForce GTX 560 Ti 448 vs Radeon HD 6950 2GB

Intro

Compare those specifications to the Radeon HD 6950 2GB, which features core speeds of 800 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950 2GB		200 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 10 Watts (5%)

Memory Bandwidth

Performance-wise, the Radeon HD 6950 2GB should theoretically be a little bit superior to the GeForce GTX 560 Ti 448 in general. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 16000 (11%)

Texel Rate

The Radeon HD 6950 2GB should be a lot (more or less 72%) better at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 29408 (72%)

Pixel Rate

The GeForce GTX 560 Ti 448 should be a small bit (about 14%) faster with regards to AA than the Radeon HD 6950 2GB, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
Radeon HD 6950 2GB		25600 Mpixels/sec
	Difference: 3680 (14%)

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 max amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.