GeForce 9600 GSO 768MB vs GeForce GT 320

Intro

Compare all of that to the GeForce GT 320, which has a GPU core clock speed of 540 MHz, and 1024 MB of GDDR3 memory set to run at 790 MHz through a 128-bit bus. It also is comprised of 72 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce 9600 GSO 768MB		84 Watts
	Difference: 41 Watts (95%)

Memory Bandwidth

In theory, the GeForce 9600 GSO 768MB should be much faster than the GeForce GT 320 overall. (explain)

GeForce 9600 GSO 768MB		38400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 13120 (52%)

Texel Rate

The GeForce 9600 GSO 768MB will be a lot (approximately 104%) better at AF than the GeForce GT 320. (explain)

GeForce 9600 GSO 768MB		26400 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 13440 (104%)

Pixel Rate

The GeForce 9600 GSO 768MB is much (about 53%) faster with regards to FSAA than the GeForce GT 320, and also should be able to handle higher resolutions better. (explain)

GeForce 9600 GSO 768MB		6600 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 2280 (53%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the 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 the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.