GeForce GTX 1080 vs GeForce GTX 660 Ti

Intro

Compare those specs to the GeForce GTX 660 Ti, which features a core clock frequency of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 192-bit bus, and uses a 28 nm design. It features 1344 SPUs, 112 Texture Address Units, and 24 ROPs.

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

In theory, the GeForce GTX 1080 is 128% quicker than the GeForce GTX 660 Ti overall, because of its greater data rate. (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%) more effective at AF 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

The GeForce GTX 1080 will be a lot (more or less 368%) better at AA than the GeForce GTX 660 Ti, and also able to handle higher resolutions while still performing well. (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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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