GeForce GTX 560 Ti vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which features a core clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is comprised of 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 84 Watts (98%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti should in theory be quite a bit better than the Radeon HD 6750 1GB overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 64256 (100%)

Texel Rate

The GeForce GTX 560 Ti is a lot (about 102%) better at texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 26508 (102%)

Pixel Rate

The GeForce GTX 560 Ti is quite a bit (about 127%) faster with regards to FSAA than the Radeon HD 6750 1GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 6750 1GB		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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.