GeForce 8600 GT 1GB DDR2 vs GeForce GTX 1080

Intro

Compare that to the GeForce GTX 1080, which comes with a clock frequency of 1607 MHz and a GDDR5X memory speed of 1251 MHz. It also makes use of a 256-bit bus, and makes use of a 16 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 1GB DDR2		47 Watts
GeForce GTX 1080		180 Watts
	Difference: 133 Watts (283%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1080 is 2460% faster than the GeForce 8600 GT 1GB DDR2 in general, due to its higher bandwidth. (explain)

GeForce GTX 1080		327680 MB/sec
GeForce 8600 GT 1GB DDR2		12800 MB/sec
	Difference: 314880 (2460%)

Texel Rate

The GeForce GTX 1080 should be a lot (approximately 2876%) more effective at AF than the GeForce 8600 GT 1GB DDR2. (explain)

GeForce GTX 1080		257120 Mtexels/sec
GeForce 8600 GT 1GB DDR2		8640 Mtexels/sec
	Difference: 248480 (2876%)

Pixel Rate

The GeForce GTX 1080 should be a lot (about 2281%) more effective at full screen anti-aliasing than the GeForce 8600 GT 1GB DDR2, and also capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 1080		102848 Mpixels/sec
GeForce 8600 GT 1GB DDR2		4320 Mpixels/sec
	Difference: 98528 (2281%)

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 data (measured in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of 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.