GeForce 8800 GTS (G92) vs GeForce GT 320

Intro

Compare all of that to the GeForce GT 320, which comes with a core clock frequency of 540 MHz and a GDDR3 memory speed of 790 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is made up of 72 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 92 Watts (214%)

Memory Bandwidth

As far as performance goes, the GeForce 8800 GTS (G92) should theoretically be much superior to the GeForce GT 320 overall. (explain)

GeForce 8800 GTS (G92)		62080 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 36800 (146%)

Texel Rate

The GeForce 8800 GTS (G92) should be much (approximately 221%) faster with regards to texture filtering than the GeForce GT 320. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 28640 (221%)

Pixel Rate

The GeForce 8800 GTS (G92) will be quite a bit (about 141%) more effective at AA than the GeForce GT 320, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce 8800 GTS (G92)		10400 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 6080 (141%)

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 data (counted in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.