GeForce GTX 660 Ti vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which has a core clock frequency of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It features 1664 SPUs, 104 TAUs, and 64 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 970		10867 points
GeForce GTX 660 Ti		6013 points
	Difference: 4854 (81%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 970 should in theory be a lot better than the GeForce GTX 660 Ti overall. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 80000 (56%)

Texel Rate

The GeForce GTX 970 will be a bit (approximately 7%) better at texture filtering than the GeForce GTX 660 Ti. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 6720 (7%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 970 is the winner, and very much so. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 45240 (206%)

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 max amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most 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 calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.