GeForce GTX 260 216SP 55 nm vs GeForce GTX 560 Ti 448

Intro

Compare that to the GeForce GTX 560 Ti 448, which has a clock speed of 732 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 320-bit bus, and uses a 40 nm design. It features 448 SPUs, 56 Texture Address Units, and 40 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 216SP 55 nm		171 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 39 Watts (23%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should in theory be a lot superior to the GeForce GTX 260 216SP 55 nm in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTX 260 216SP 55 nm		111888 MB/sec
	Difference: 32112 (29%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be a bit (about 1%) better at texture filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 480 (1%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 560 Ti 448 is the winner, by far. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
	Difference: 13152 (82%)

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 largest amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.