GeForce GTX 660 Ti vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which comes with core clock speeds of 954 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 memory. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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 880M		6360 points
GeForce GTX 660 Ti		6013 points
	Difference: 347 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 20 Watts (15%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 660 Ti should theoretically be a bit superior to the GeForce GTX 880M in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 880M		128000 MB/sec
	Difference: 16000 (13%)

Texel Rate

The GeForce GTX 880M is a little bit (approximately 19%) faster with regards to texture filtering than the GeForce GTX 660 Ti. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 19632 (19%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 880M is the winner, and very much so. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 8568 (39%)

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 (measured in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.