GeForce 8800 GT 512MB vs GeForce GTX 560 Ti 448

Intro

Compare those specifications to the GeForce GTX 560 Ti 448, which comes with a clock frequency of 732 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 320-bit memory bus, and makes use of a 40 nm design. It features 448 SPUs, 56 Texture Address Units, and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 105 Watts (100%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should in theory be much better than the GeForce 8800 GT 512MB overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 86400 (150%)

Texel Rate

The GeForce GTX 560 Ti 448 is quite a bit (more or less 22%) better at AF than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 560 Ti 448		40992 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 7392 (22%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 19680 (205%)

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 maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total 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 processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record 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 card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.