GeForce 8800 GS vs GeForce GTX 980

Intro

Compare those specs to the GeForce GTX 980, which comes with core clock speeds of 1126 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. 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 GS		105 Watts
GeForce GTX 980		165 Watts
	Difference: 60 Watts (57%)

Memory Bandwidth

The GeForce GTX 980 should in theory be much faster than the GeForce 8800 GS in general. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 8800 GS		38400 MB/sec
	Difference: 185600 (483%)

Texel Rate

The GeForce GTX 980 should be a lot (more or less 446%) more effective at anisotropic filtering than the GeForce 8800 GS. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 8800 GS		26400 Mtexels/sec
	Difference: 117728 (446%)

Pixel Rate

The GeForce GTX 980 is much (about 992%) better at anti-aliasing than the GeForce 8800 GS, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 8800 GS		6600 Mpixels/sec
	Difference: 65464 (992%)

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 max amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling 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 graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 potential to get to the maximum fill rate.