GeForce 9800 GTX vs GeForce GTX 570

Intro

Compare all that to the GeForce GTX 570, which has a GPU core clock speed of 732 MHz, and 1280 MB of GDDR5 memory set to run at 950 MHz through a 320-bit bus. It also features 480 SPUs, 60 TAUs, and 40 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX		140 Watts
GeForce GTX 570		219 Watts
	Difference: 79 Watts (56%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should be quite a bit faster than the GeForce 9800 GTX in general. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 81600 (116%)

Texel Rate

The GeForce GTX 570 is a little bit (about 2%) faster with regards to AF than the GeForce 9800 GTX. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 9800 GTX		43200 Mtexels/sec
	Difference: 720 (2%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 570 is superior to the GeForce 9800 GTX, by a large margin. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 18480 (171%)

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 data (measured in megabytes per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.