GeForce 8800 GTX vs GeForce GT 320

Intro

Compare all of that to the GeForce GT 320, which comes with GPU core speed of 540 MHz, and 1024 MB of GDDR3 RAM set to run at 790 MHz through a 128-bit bus. It also is made up of 72 Stream Processors, 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 GTX		155 Watts
	Difference: 112 Watts (260%)

Memory Bandwidth

The GeForce 8800 GTX should theoretically perform quite a bit faster than the GeForce GT 320 in general. (explain)

GeForce 8800 GTX		86400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 61120 (242%)

Texel Rate

The GeForce 8800 GTX should be a lot (about 184%) better at anisotropic filtering than the GeForce GT 320. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 23840 (184%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce 8800 GTX is superior to the GeForce GT 320, by a large margin. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 9480 (219%)

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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the 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 the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.