GeForce GTX 560 Ti vs Radeon HD 6750

Intro

Compare all that to the Radeon HD 6750, which has a clock speed of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It features 720 SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 84 Watts (98%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti should in theory be quite a bit better than the Radeon HD 6750 in general. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 64256 (100%)

Texel Rate

The GeForce GTX 560 Ti is much (approximately 102%) faster with regards to texture filtering than the Radeon HD 6750. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 26508 (102%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 Ti is a better choice, and very much so. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 14704 (127%)

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 (counted in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.