GeForce 8800 GTS (G92) vs GeForce GT 320

Intro

Compare those specs to the GeForce GT 320, which has a core clock frequency of 540 MHz and a GDDR3 memory frequency of 790 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It features 72 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

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

Theoretically, the GeForce 8800 GTS (G92) should perform much faster than 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) is quite a bit (approximately 221%) faster with regards to anisotropic 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) is quite a bit (about 141%) faster with regards to FSAA than the GeForce GT 320, and also should be capable of handling higher screen resolutions better. (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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.