GeForce GTX 1660 Ti vs GeForce GTX 780 Ti

Intro

Compare those specifications to the GeForce GTX 780 Ti, which comes with GPU core speed of 875 MHz, and 3072 MB of GDDR5 RAM set to run at 1750 MHz through a 384-bit bus. It also is made up of 2880 SPUs, 240 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti should be 14% faster than the GeForce GTX 1660 Ti overall, because of its greater data rate. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 41088 (14%)

Texel Rate

The GeForce GTX 780 Ti is much (about 46%) more effective at AF than the GeForce GTX 1660 Ti. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 66000 (46%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1660 Ti is a better choice, by far. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 30000 (71%)

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 information (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.