EXPreview took 4 of NVidia’s GTX480 cars and slapped them in an EVGA X58 Classified motherboard to do some testing of 4-way SLI operations. The results:
4-way SLI has 116.76% advancement than single one, and gap between 4-way SLI and 3-way SLI is an average value of 3.50%.
Such situation lies in parts of drive and game, because at the moment 4-way SLI is not perfect, and there is no doubt that exist lots of problems, while 3-way SLI is three years old, also be mature enough.
Basically, the tiny little performance boost isn’t worth the increased cost and power consumption (Over 1.2 KW at full load). Most applications wind up being heavily memory and CPU bottlenecked with that much graphics horsepower, so it’s no surprise.
Unfortunately, he didn’t run any GPGPU benchmarks. Then I bet it would really shine.
