GeForce GT 340 1GB vs GeForce GTX 660 Ti

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 81 Watts (117%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should be quite a bit faster than the GeForce GT 340 1GB overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 89600 (165%)

Texel Rate

The GeForce GTX 660 Ti should be a lot (approximately 482%) more effective at texture filtering than the GeForce GT 340 1GB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 84880 (482%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 660 Ti is a better choice, and very much so. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 17560 (399%)

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 (counted in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.