GeForce GT 340 vs GeForce GTX 660 Ti

Intro

Compare those specifications to the GeForce GTX 660 Ti, which comes with core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 Texture Address Units and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should theoretically be much better than the GeForce GT 340 overall. (explain)

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

Texel Rate

The GeForce GTX 660 Ti should be a lot (more or less 482%) faster with regards to AF than the GeForce GT 340. (explain)

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

Pixel Rate

The GeForce GTX 660 Ti should be a lot (approximately 399%) faster with regards to full screen anti-aliasing than the GeForce GT 340, and also will be capable of handling higher resolutions better. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GT 340		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: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, 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 number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.