GeForce 8800 GT 256MB vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which features core speeds of 732 MHz on the GPU, and 950 MHz on the 1280 MB of GDDR5 RAM. It features 480 SPUs as well as 60 Texture Address Units and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 256MB		105 Watts
GeForce GTX 570		219 Watts
	Difference: 114 Watts (109%)

Memory Bandwidth

Performance-wise, the GeForce GTX 570 should theoretically be quite a bit better than the GeForce 8800 GT 256MB overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 8800 GT 256MB		44800 MB/sec
	Difference: 107200 (239%)

Texel Rate

The GeForce GTX 570 will be quite a bit (approximately 31%) more effective at AF than the GeForce 8800 GT 256MB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 10320 (31%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 570 is a better choice, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 8800 GT 256MB		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 maximum amount of information (in units of MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.