Intel Core i5-3427U: Ivy Bridge For Ultrabooks
Test Methodology, HD Video and Quick Sync Transcoding
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As a quick sanity check on CPU utilization, we first fired up a 1080p QuickTime video clip from the Apple QuickTime Movie Trailer gallery. Here we've captured a scene from the movie I am Legend, so you can get a look at how Intel's new Ivy Bridge Core i5-3427U handles unoptimized HD video decoding workloads.
Windows Task Manager Performance monitor shows the new low power dual-core, four-thread capable chip is oscillating between 10 - 18% CPU utilization.
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Cyberlink's MediaEspresso is a video conversion tool that imports various video media files types and converts them to other standard video types for publication, portability and streaming. In this test, we take a 224MB high definition 1080p AVCHD video clip and convert it to a 720p H.264-encoded video file. Here we're going to look directly at Intel's Quick Sync video transcode engine in the new Ivy Bridge Ultra processor architecture and compare it to Intel's previous generation Sandy Bridge Quick Sync engine and competitive GPU-based solutions as well.
Times are measured in minutes:seconds with lower times representing faster throughput in the video conversion process.
At the bottom of the stack is the new Core i5-3427U in software only mode. At only 17 Watts TDP it's the most power-conservative CPU of the bunch, however, and with Quick Sync disabled this result falls in line as expected.