GeForce GTX 1080 vs GeForce GTX 660 Ti

Intro

Compare those specifications to the GeForce GTX 660 Ti, which makes use of a 28 nm design. nVidia has set the core speed at 915 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this particular model. It features 1344 SPUs along with 112 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 1080		21942 points
GeForce GTX 660 Ti		6013 points
	Difference: 15929 (265%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
GeForce GTX 1080		180 Watts
	Difference: 30 Watts (20%)

Memory Bandwidth

The GeForce GTX 1080 should in theory perform a lot faster than the GeForce GTX 660 Ti in general. (explain)

GeForce GTX 1080		327680 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 183680 (128%)

Texel Rate

The GeForce GTX 1080 will be a lot (more or less 151%) faster with regards to anisotropic filtering than the GeForce GTX 660 Ti. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 154640 (151%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 1080 is a better choice, and very much so. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 80888 (368%)

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.