GeForce GTX 660 Ti vs GeForce GTX 860M

Intro

Compare those specs to the GeForce GTX 860M, which comes with a clock speed of 797 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It is comprised of 1152 SPUs, 96 TAUs, and 16 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 660 Ti		6013 points
GeForce GTX 860M		4340 points
	Difference: 1673 (39%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 105 Watts (233%)

Memory Bandwidth

Performance-wise, the GeForce GTX 660 Ti should in theory be much superior to the GeForce GTX 860M in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 860M		64000 MB/sec
	Difference: 80000 (125%)

Texel Rate

The GeForce GTX 660 Ti should be much (approximately 34%) more effective at AF than the GeForce GTX 860M. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 860M		76512 Mtexels/sec
	Difference: 25968 (34%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 660 Ti is superior to the GeForce GTX 860M, by far. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GTX 860M		12752 Mpixels/sec
	Difference: 9208 (72%)

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 data (measured in MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock 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 higher the 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 number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.