GeForce GTX 880M vs GeForce GTX 950M

Intro

Compare that to the GeForce GTX 950M, which uses a 28 nm design. nVidia has set the core frequency at 914 MHz. The DDR3 RAM is set to run at a speed of 1000 MHz on this model. 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 950M		3330 points
	Difference: 3030 (91%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
GeForce GTX 880M		130 Watts
	Difference: 75 Watts (136%)

Memory Bandwidth

In theory, the GeForce GTX 880M is 300% quicker than the GeForce GTX 950M in general, because of its greater data rate. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 96000 (300%)

Texel Rate

The GeForce GTX 880M is quite a bit (approximately 234%) faster with regards to texture filtering than the GeForce GTX 950M. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 85552 (234%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 880M is superior to the GeForce GTX 950M, by far. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 15904 (109%)

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 data (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.