GeForce 8800 Ultra vs GeForce GT 320

Intro

Compare all of that to the GeForce GT 320, which has core speeds of 540 MHz on the GPU, and 790 MHz on the 1024 MB of GDDR3 RAM. It features 72 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 128 Watts (298%)

Memory Bandwidth

Performance-wise, the GeForce 8800 Ultra should in theory be much superior to the GeForce GT 320 overall. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 78400 (310%)

Texel Rate

The GeForce 8800 Ultra should be a lot (about 202%) better at texture filtering than the GeForce GT 320. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 26208 (202%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 8800 Ultra is superior to the GeForce GT 320, and very much so. (explain)

GeForce 8800 Ultra		14688 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 10368 (240%)

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 moved past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.