GeForce GT 310 vs GeForce GT 320

Intro

Compare those specifications to the GeForce GT 320, which comes with core clock 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

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
GeForce GT 320		43 Watts
	Difference: 12 Watts (39%)

Memory Bandwidth

Performance-wise, the GeForce GT 320 should theoretically be a lot superior to the GeForce GT 310 overall. (explain)

GeForce GT 320		25280 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 9280 (58%)

Texel Rate

The GeForce GT 320 will be much (more or less 175%) more effective at anisotropic filtering than the GeForce GT 310. (explain)

GeForce GT 320		12960 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 8248 (175%)

Pixel Rate

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

GeForce GT 320		4320 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 1964 (83%)

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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. 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 output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.