GeForce GT 320 vs GeForce GTX 260 Core 216

Intro

Compare those specs to the GeForce GTX 260 Core 216, which features core clock speeds of 576 MHz on the GPU, and 999 MHz on the 896 MB of GDDR3 RAM. It features 216 SPUs as well as 72 Texture Address Units and 28 Rasterization Operator 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 is quite a bit (about 220%) better at texture filtering 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

The GeForce GTX 260 Core 216 should be much (approximately 273%) better at full screen anti-aliasing than the GeForce GT 320, and will be able to handle higher screen resolutions while still performing well. (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 max amount of data (in units of MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated 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 drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.