GeForce GTX 275 vs GeForce GTX 560 Ti

Intro

Compare those specs to the GeForce GTX 560 Ti, which has a clock frequency of 822 MHz and a GDDR5 memory frequency of 1002 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 384 SPUs, 64 TAUs, 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
GeForce GTX 275		219 Watts
	Difference: 49 Watts (29%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti will be 1% faster than the GeForce GTX 275 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 560 Ti should be a bit (more or less 4%) faster with regards to 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 will be much (approximately 48%) faster with regards to anti-aliasing than the GeForce GTX 275, and will be able to handle higher resolutions while still performing well. (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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.