GeForce 8800 GS vs GeForce GTX 880M

Intro

Compare that to the GeForce GTX 880M, which uses a 28 nm design. nVidia has set the core frequency at 954 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this model. It features 1536 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GS		105 Watts
GeForce GTX 880M		130 Watts
	Difference: 25 Watts (24%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should in theory be much better than the GeForce 8800 GS overall. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 89600 (233%)

Texel Rate

The GeForce GTX 880M is much (approximately 363%) more effective at texture filtering than the GeForce 8800 GS. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce 8800 GS		26400 Mtexels/sec
	Difference: 95712 (363%)

Pixel Rate

The GeForce GTX 880M should be much (about 363%) faster with regards to FSAA than the GeForce 8800 GS, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 23928 (363%)

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 transferred across the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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. Pixel rate is worked out 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.