GeForce 8800 GTS (G92) vs GeForce 8800 Ultra

Intro

Compare all of that to the GeForce 8800 Ultra, which uses a 90 nm design. nVidia has set the core frequency at 612 MHz. The GDDR3 RAM works at a speed of 1080 MHz on this particular model. It features 128 SPUs along with 64 Texture Address Units and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 36 Watts (27%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra should be quite a bit faster than the GeForce 8800 GTS (G92) in general. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 41600 (67%)

Texel Rate

The GeForce 8800 GTS (G92) should be a little bit (approximately 6%) more effective at AF than the GeForce 8800 Ultra. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 2432 (6%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 8800 Ultra is superior to the GeForce 8800 GTS (G92), by a large margin. (explain)

GeForce 8800 Ultra		14688 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 4288 (41%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling 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 video card could possibly write to the local memory per 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 - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.