GeForce 9800 GT 1GB vs GeForce GTX 570

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
GeForce GTX 570		219 Watts
	Difference: 114 Watts (109%)

Memory Bandwidth

In theory, the GeForce GTX 570 should be 164% quicker than the GeForce 9800 GT 1GB in general, because of its greater bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 94400 (164%)

Texel Rate

The GeForce GTX 570 is quite a bit (approximately 31%) better at AF than the GeForce 9800 GT 1GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 10320 (31%)

Pixel Rate

The GeForce GTX 570 should be a lot (approximately 205%) better at FSAA than the GeForce 9800 GT 1GB, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 9800 GT 1GB		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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.