GeForce 8800 Ultra vs GeForce GTX 880M

Intro

Compare those specifications to the GeForce GTX 880M, which has GPU core speed of 954 MHz, and 4096 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M		130 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 41 Watts (32%)

Memory Bandwidth

The GeForce GTX 880M should theoretically be a lot faster than the GeForce 8800 Ultra overall. (explain)

GeForce GTX 880M		128000 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 24320 (23%)

Texel Rate

The GeForce GTX 880M will be quite a bit (about 212%) more effective at AF than the GeForce 8800 Ultra. (explain)

GeForce GTX 880M		122112 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 82944 (212%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 880M is the winner, by a large margin. (explain)

GeForce GTX 880M		30528 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 15840 (108%)

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 largest amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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