GeForce GT 320 vs GeForce GTX 260 Core 216

Intro

Compare that to the GeForce GTX 260 Core 216, which features a clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also uses a 448-bit bus, and uses a 65 nm design. It is comprised of 216 SPUs, 72 Texture Address Units, and 28 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 159 Watts (370%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 Core 216 should in theory be quite a bit superior to the GeForce GT 320 overall. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 86608 (343%)

Texel Rate

The GeForce GTX 260 Core 216 will be quite a bit (more or less 220%) faster with regards to AF than the GeForce GT 320. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 28512 (220%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 260 Core 216 is the winner, by a large margin. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 11808 (273%)

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 maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.