GeForce 8800 GT 512MB vs GeForce GTX 860M

Intro

Compare that to the GeForce GTX 860M, which features a GPU core clock speed of 797 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 1152 Stream Processors, 96 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 60 Watts (133%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should be a bit faster than the GeForce 8800 GT 512MB overall. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce GTX 860M will be a lot (about 128%) faster with regards to AF than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 42912 (128%)

Pixel Rate

The GeForce GTX 860M will be a lot (more or less 33%) better at full screen anti-aliasing than the GeForce 8800 GT 512MB, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 3152 (33%)

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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.