GeForce 8800 GT 512MB vs GeForce GTX 560 Ti 448

Intro

Compare those specifications to the GeForce GTX 560 Ti 448, which has GPU clock speed of 732 MHz, and 1280 MB of GDDR5 RAM set to run at 900 MHz through a 320-bit bus. It also is comprised of 448 SPUs, 56 TAUs, and 40 Raster Operation Units.

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

In theory, the GeForce GTX 560 Ti 448 should be much faster 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 (approximately 22%) better at anisotropic filtering 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

The GeForce GTX 560 Ti 448 is quite a bit (approximately 205%) more effective at full screen anti-aliasing than the GeForce 8800 GT 512MB, and should be capable of handling higher screen resolutions without losing too much performance. (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: Bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.