GeForce 8800 Ultra vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which features a clock frequency of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also features a 320-bit bus, and uses a 40 nm design. It features 480 SPUs, 60 Texture Address Units, and 40 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 Ultra		171 Watts
GeForce GTX 570		219 Watts
	Difference: 48 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 will be 47% faster than the GeForce 8800 Ultra in general, because of its higher bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 48320 (47%)

Texel Rate

The GeForce GTX 570 should be a little bit (approximately 12%) better at texture filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 4752 (12%)

Pixel Rate

The GeForce GTX 570 should be a lot (approximately 99%) more effective at AA than the GeForce 8800 Ultra, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 14592 (99%)

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 megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.