GeForce 8800 GTS (G92) vs GeForce 9800 GTX

Intro

Compare that to the GeForce 9800 GTX, which comes with GPU clock speed of 675 MHz, and 512 MB of GDDR3 RAM set to run at 1100 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 TAUs, 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

Performance-wise, the GeForce 9800 GTX should theoretically be just a bit better 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 will be a little bit (approximately 4%) faster with regards to texture 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 a little bit (about 4%) better at FSAA than the GeForce 8800 GTS (G92), and also capable of handling higher 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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the 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 core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.