GeForce GTX 275 vs GeForce GTX 560 Ti

Intro

Compare all that to the GeForce GTX 560 Ti, which has a clock frequency of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 384 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
GeForce GTX 275		219 Watts
	Difference: 49 Watts (29%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti should be 1% quicker than the GeForce GTX 275 overall, because of its higher data rate. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce GTX 275		127008 MB/sec
	Difference: 1248 (1%)

Texel Rate

The GeForce GTX 560 Ti is a bit (approximately 4%) better at texture filtering than the GeForce GTX 275. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 1968 (4%)

Pixel Rate

The GeForce GTX 560 Ti is quite a bit (approximately 48%) better at full screen anti-aliasing than the GeForce GTX 275, and also will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 8580 (48%)

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 over the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one 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. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.