GeForce GTX 1660 Ti vs Geforce GTX 770

Intro

Compare all that to the Geforce GTX 770, which has GPU clock speed of 1046 MHz, and 2048 MB of GDDR5 memory running at 1753 MHz through a 256-bit bus. It also features 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Geforce GTX 770		230 Watts
	Difference: 110 Watts (92%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1660 Ti should perform much faster than the Geforce GTX 770 overall. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 70528 (31%)

Texel Rate

The GeForce GTX 1660 Ti will be just a bit (more or less 8%) better at texture filtering than the Geforce GTX 770. (explain)

GeForce GTX 1660 Ti		144000 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 10112 (8%)

Pixel Rate

The GeForce GTX 1660 Ti is a lot (approximately 115%) more effective at AA than the Geforce GTX 770, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 38528 (115%)

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 information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video 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 that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.