GeForce 8800 GT 1GB vs GeForce GTX 980

Intro

Compare all that to the GeForce GTX 980, which uses a 28 nm design. nVidia has clocked the core speed at 1126 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
GeForce GTX 980		165 Watts
	Difference: 60 Watts (57%)

Memory Bandwidth

Theoretically, the GeForce GTX 980 should be quite a bit faster than the GeForce 8800 GT 1GB overall. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 166400 (289%)

Texel Rate

The GeForce GTX 980 is much (more or less 329%) more effective at anisotropic filtering than the GeForce 8800 GT 1GB. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 110528 (329%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 980 is a better choice, by a large margin. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 62464 (651%)

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 information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, 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 texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.