GeForce 8800 GT 512MB vs GeForce GTX 980M

Intro

Compare those specifications to the GeForce GTX 980M, which uses a 28 nm design. nVidia has set the core speed at 1038 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 1536 SPUs along with 96 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 5 Watts (5%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980M will be 122% faster than the GeForce 8800 GT 512MB in general, due to its higher data rate. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 70400 (122%)

Texel Rate

The GeForce GTX 980M will be a lot (approximately 197%) faster with regards to AF than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 66048 (197%)

Pixel Rate

The GeForce GTX 980M should be a lot (about 592%) better at FSAA than the GeForce 8800 GT 512MB, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 56832 (592%)

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 (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.