Snow Leopard's Grand Central Dispatch and OpenCL boost video encoding app by 50 percent
byNilay Patel||September 17th 2009 at 6:27pmSeptember 17th 2009 6:27 pm
It'll take some time before we see the true impact of OpenCL and the newly-open-sourced Grand Central Dispatch on OS X, but we're definitely intrigued by this early report from Christophe Ducommun, developer of MovieGate, who says that shifting his app to use the new tech has increased performance by around 50 percent on the same hardware. Testing on a 2007 2.66GHz quad-core Mac Pro with a GeForce 8800GT, MovieGate MPEG-2 encode speeds went from 104fps under Leopard to 150fps under Snow Leopard, and decoding CPU usage dropped from 165 percent to 70 percent. Now, yes, that's just one app, and most users don't have four cores to play with, but it's still an eye-opening result, and we're definitely hoping it's the start of a trend.