GeForce GTX 880M vs GeForce GTX 960M

Intro

Compare all of that to the GeForce GTX 960M, which makes use of a 28 nm design. nVidia has set the core speed at 1096 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this card. It features 640 SPUs along with 40 Texture Address Units 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 880M		6360 points
GeForce GTX 960M		4350 points
	Difference: 2010 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
GeForce GTX 880M		130 Watts
	Difference: 65 Watts (100%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should in theory be much superior to the GeForce GTX 960M overall. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 64000 (100%)

Texel Rate

The GeForce GTX 880M should be much (more or less 179%) faster with regards to texture filtering than the GeForce GTX 960M. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 960M		43840 Mtexels/sec
	Difference: 78272 (179%)

Pixel Rate

The GeForce GTX 880M should be a lot (approximately 74%) faster with regards to full screen anti-aliasing than the GeForce GTX 960M, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 12992 (74%)

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 max amount of information (counted in MB per second) that can be transferred 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 it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.