GeForce 8800 GTS (G92) vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which features a GPU core clock speed of 700 MHz, and 1536 MB of GDDR5 memory set to run at 924 MHz through a 384-bit bus. It also is comprised of 480 SPUs, 60 Texture Address Units, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce GTX 480		250 Watts
	Difference: 115 Watts (85%)

Memory Bandwidth

In theory, the GeForce GTX 480 is 186% quicker than the GeForce 8800 GTS (G92) in general, because of its higher data rate. (explain)

GeForce GTX 480		177408 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 115328 (186%)

Texel Rate

The GeForce GTX 480 will be a small bit (more or less 1%) faster with regards to AF than the GeForce 8800 GTS (G92). (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 400 (1%)

Pixel Rate

The GeForce GTX 480 is much (more or less 223%) more effective at anti-aliasing than the GeForce 8800 GTS (G92), and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 23200 (223%)

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 (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.