GeForce 8800 GTX vs GeForce GTX 880M

Intro

Compare all of that to the GeForce GTX 880M, which comes with a clock frequency of 954 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

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

In theory, the GeForce GTX 880M should perform quite a bit faster than the GeForce 8800 GTX overall. (explain)

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

Texel Rate

The GeForce GTX 880M will be quite a bit (approximately 232%) better at AF than the GeForce 8800 GTX. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 880M is a better choice, and very much so. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.