GeForce GT 320 vs GeForce GTX 660 Ti

Intro

Compare all that to the GeForce GTX 660 Ti, which comes with a core clock speed of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 192-bit memory bus, and makes use of a 28 nm design. It is made up of 1344 SPUs, 112 Texture Address Units, and 24 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 107 Watts (249%)

Memory Bandwidth

Theoretically, the GeForce GTX 660 Ti should perform much faster than the GeForce GT 320 in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 118720 (470%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (about 691%) better at texture filtering than the GeForce GT 320. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 89520 (691%)

Pixel Rate

The GeForce GTX 660 Ti will be much (more or less 408%) better at AA than the GeForce GT 320, and will be able to handle higher resolutions better. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 17640 (408%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling 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 that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.