GeForce GTX 660 Ti vs GeForce GTX 950M

Intro

Compare that to the GeForce GTX 950M, which comes with GPU core speed of 914 MHz, and 2048 MB of DDR3 RAM running at 1000 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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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 950M		3330 points
	Difference: 2683 (81%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should in theory be quite a bit superior to the GeForce GTX 950M overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 112000 (350%)

Texel Rate

The GeForce GTX 660 Ti will be much (more or less 180%) more effective at anisotropic filtering than the GeForce GTX 950M. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 65920 (180%)

Pixel Rate

The GeForce GTX 660 Ti will be much (about 50%) more effective at anti-aliasing than the GeForce GTX 950M, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 7336 (50%)

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 (counted in megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.