GeForce 9800 GTX vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which has a core clock speed of 732 MHz and a GDDR5 memory speed of 950 MHz. It also uses a 320-bit bus, and uses a 40 nm design. It 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

As far as performance goes, the GeForce GTX 570 should in theory be much better 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 will be a little bit (approximately 2%) faster with regards to anisotropic filtering than the GeForce 9800 GTX. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 570 is the winner, and very much so. (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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.