GeForce 8800 GTS (G92) vs GeForce 9800 GTX

Intro

Compare all of that to the GeForce 9800 GTX, which comes with GPU core speed of 675 MHz, and 512 MB of GDDR3 RAM running at 1100 MHz through a 256-bit bus. It also is made up of 128 Stream Processors, 64 TAUs, and 16 ROPs.

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

In theory, the GeForce 9800 GTX should be 13% quicker than the GeForce 8800 GTS (G92) in general, due to its higher bandwidth. (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 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 a bit (approximately 4%) more effective at FSAA than the GeForce 8800 GTS (G92), and will be capable of handling higher resolutions while still performing well. (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 information (counted in megabytes per second) that can be transported over 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 the card has DDR type memory, it should be multiplied by 2 once 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core 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 output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.