GeForce 8800 GTS (G92) vs GeForce 9800 GTX

Intro

Compare those specs to the GeForce 9800 GTX, which has GPU clock speed of 675 MHz, and 512 MB of GDDR3 memory set to run at 1100 MHz through a 256-bit bus. It also is made up of 128 Stream Processors, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce 9800 GTX		140 Watts
	Difference: 5 Watts (4%)

Memory Bandwidth

The GeForce 9800 GTX, in theory, should perform just a bit faster than the GeForce 8800 GTS (G92) in general. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 8320 (13%)

Texel Rate

The GeForce 9800 GTX is a bit (approximately 4%) more effective at anisotropic filtering than the GeForce 8800 GTS (G92). (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 1600 (4%)

Pixel Rate

The GeForce 9800 GTX is just a bit (approximately 4%) better at full screen anti-aliasing than the GeForce 8800 GTS (G92), and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 400 (4%)

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 (in units of megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. 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 potential to get to the max fill rate.