GeForce GT 310 vs GeForce GTX 660 Ti

Intro

Compare that to the GeForce GTX 660 Ti, which has GPU clock speed of 915 MHz, and 2048 MB of GDDR5 memory running at 1500 MHz through a 192-bit bus. It also features 1344 SPUs, 112 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 310		31 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 119 Watts (384%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should be 800% quicker than the GeForce GT 310 overall, because of its greater data rate. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GT 310		16000 MB/sec
	Difference: 128000 (800%)

Texel Rate

The GeForce GTX 660 Ti is a lot (about 2075%) faster with regards to anisotropic filtering than the GeForce GT 310. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GT 310		4712 Mtexels/sec
	Difference: 97768 (2075%)

Pixel Rate

The GeForce GTX 660 Ti will be quite a bit (more or less 832%) more effective at AA than the GeForce GT 310, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GT 310		2356 Mpixels/sec
	Difference: 19604 (832%)

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 largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.