GeForce 8800 GTS (G80) 320MB vs GeForce GTX 980M

Intro

Compare all that to the GeForce GTX 980M, which has GPU core speed of 1038 MHz, and 4096 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M		100 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 43 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980M is 102% quicker than the GeForce 8800 GTS (G80) 320MB overall, due to its higher data rate. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 64640 (102%)

Texel Rate

The GeForce GTX 980M is quite a bit (more or less 305%) faster with regards to texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 75024 (305%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980M is superior to the GeForce 8800 GTS (G80) 320MB, by a large margin. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 56172 (547%)

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 data (measured in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant 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 reach the maximum fill rate.