GeForce 8500 GT vs GeForce GTX 570

Intro

Compare that to the GeForce GTX 570, which has GPU core speed of 732 MHz, and 1280 MB of GDDR5 memory running at 950 MHz through a 320-bit bus. It also is comprised of 480 Stream Processors, 60 TAUs, and 40 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GTX 570		219 Watts
	Difference: 174 Watts (387%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 will be 1088% faster than the GeForce 8500 GT overall, because of its greater bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 139200 (1088%)

Texel Rate

The GeForce GTX 570 should be quite a bit (more or less 1120%) better at anisotropic filtering than the GeForce 8500 GT. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 40320 (1120%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 570 is superior to the GeForce 8500 GT, and very much so. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 27480 (1527%)

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 data (in units of MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 processed in one second. This figure is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.