GeForce 8800 GTX vs GeForce GTX 880M

Intro

Compare those specs to the GeForce GTX 880M, which makes use of a 28 nm design. nVidia has set the core speed at 954 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this particular card. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce 8800 GTX		155 Watts
	Difference: 25 Watts (19%)

Memory Bandwidth

Performance-wise, the GeForce GTX 880M should theoretically be quite a bit better than the GeForce 8800 GTX in general. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 41600 (48%)

Texel Rate

The GeForce GTX 880M should be much (approximately 232%) better at anisotropic filtering than the GeForce 8800 GTX. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 85312 (232%)

Pixel Rate

The GeForce GTX 880M is quite a bit (about 121%) faster with regards to full screen anti-aliasing than the GeForce 8800 GTX, and will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 16728 (121%)

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 megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling 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 the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.