GeForce 8800 GT 1GB vs GeForce GTX 880M

Intro

Compare that to the GeForce GTX 880M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 954 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this particular model. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
GeForce GTX 880M		130 Watts
	Difference: 25 Watts (24%)

Memory Bandwidth

In theory, the GeForce GTX 880M should be 122% faster than the GeForce 8800 GT 1GB in general, because of its higher bandwidth. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 70400 (122%)

Texel Rate

The GeForce GTX 880M is much (more or less 263%) faster with regards to anisotropic filtering than the GeForce 8800 GT 1GB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 88512 (263%)

Pixel Rate

The GeForce GTX 880M should be much (about 218%) better at AA than the GeForce 8800 GT 1GB, and should be capable of handling higher resolutions better. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 20928 (218%)

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: Memory bandwidth is the max amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount 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 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.