Video playback is one common case scenario where efficiency is crucial and where a lengthy battery life is an infrequently found godsend. But what you may not realize is that the video player itself, and the format your videos are encoded in, can also have an impact on power consumption.
Instead of breaking new ground in performance, Ivy Bridge improves efficiency, marking the arrival of Intel's 22nm design process which uses new 3D transistors. This allows the flagship quad-core 3.5GHz Core i7-3770K to consume less power than the more modest Sandy Bridge i5-2500K.
Granted, the 19-watt power savings we recorded in our tests probably won't excite desktop users, but it does present a tangible benefit for battery-bound mobile machines. Ivy Bridge's improved fuel efficiency should grant laptops a little more mileage away from wall chargers.
Internet Explorer isn't the fastest or most featured-packed browser around, but it might be the most power efficient. Hoping to determine which software would give his aging desktop replacement the longest battery life, Ciprian Adrian Rusen put IE9, IE10, Chrome, Firefox and Opera to the test...