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

Intro

Compare all that to the GeForce GTX 980, which makes use of a 28 nm design. nVidia has clocked the core frequency at 1126 MHz. The GDDR5 memory works at a speed of 1750 MHz on this particular model. It features 2048 SPUs as well as 128 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 320MB		143 Watts
GeForce GTX 980		165 Watts
	Difference: 22 Watts (15%)

Memory Bandwidth

Theoretically, the GeForce GTX 980 should be quite a bit faster than the GeForce 8800 GTS (G80) 320MB in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 160640 (254%)

Texel Rate

The GeForce GTX 980 is much (about 485%) more effective at texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 119504 (485%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 980 is superior to the GeForce 8800 GTS (G80) 320MB, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 61804 (602%)

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 information (in units of MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.