GeForce 8800 GTS (G92) vs GeForce 9800 GT 512MB

Intro

Compare those specs to the GeForce 9800 GT 512MB, which has GPU core speed of 600 MHz, and 512 MB of GDDR3 memory set to run at 900 MHz through a 256-bit bus. It also features 112 Stream Processors, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 512MB		105 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 30 Watts (29%)

Memory Bandwidth

In theory, the GeForce 8800 GTS (G92) should be 8% quicker than the GeForce 9800 GT 512MB overall, due to its higher bandwidth. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
GeForce 9800 GT 512MB		57600 MB/sec
	Difference: 4480 (8%)

Texel Rate

The GeForce 8800 GTS (G92) will be a lot (about 24%) faster with regards to anisotropic filtering than the GeForce 9800 GT 512MB. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce 9800 GT 512MB		33600 Mtexels/sec
	Difference: 8000 (24%)

Pixel Rate

The GeForce 8800 GTS (G92) is just a bit (more or less 8%) faster with regards to AA than the GeForce 9800 GT 512MB, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
GeForce 9800 GT 512MB		9600 Mpixels/sec
	Difference: 800 (8%)

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 (in units of megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.