GeForce 9800 GTX vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which features a core clock speed of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also makes use of a 320-bit bus, and uses a 40 nm design. It is made up of 480 SPUs, 60 Texture Address Units, and 40 Raster Operation Units.

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 theoretically be a lot superior to the GeForce 9800 GTX overall. (explain)

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

Texel Rate

The GeForce GTX 570 should be just a bit (about 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

The GeForce GTX 570 will be quite a bit (approximately 171%) faster with regards to full screen anti-aliasing than the GeForce 9800 GTX, and will be able to handle higher resolutions while still performing well. (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 max amount of data (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 can be applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock 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 applied per second.

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