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Benchmark Results: Media Encoding

Core i7-2820QM: Sandy Bridge Shines In Notebooks
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We've updated our iTunes benchmark to stay current, but it matters little, as everything is still on a single thread.

Intel’s Core i3-2100 and Core i5-655K swap places compared to the Lame chart on the previous page. Otherwise, they’re identical. In fact, this looks the same as our WinRAR benchmark. Without more in the way of developer attention, that’s the way every single-threaded title is going to end.

Fortunately, not every application is as poorly optimized as iTunes. MainConcept uses as many processor threads as it can get its hands on. Moreover Sonic Solutions launched version 1.1 of its CUDA SDK, facilitating transcoding from MPEG-2, VC-1, or H.264 to H.264 in hardware. Hopefully, the company will update the software to exploit Quick Sync as well.

Intel’s Core i7-2600K is the lone processor to complete our test in under a minute. The mobile Core i7-2820QM follows closely at just over one minute. The Intel’s Core i5-2500K is just five seconds behind. Meanwhile, the Core i3 and older Clarkdale- and Arrandale-based processors trail more than thirty seconds behind.

HandBrake also makes good use of parallelism, handing the Core i7-2600K a massive win. From there, things look very similar to the MainConcept benchmark, with the Core i5-2500K and Core i5-2400 landing close together. The Core i7-2820QM comes in just as expected, just ahead of the i5-2500K. If it had more in the way of base clock rate or Turbo bins, it would falls closer to the i7-2600K. That'd also mess with its TDP, though.

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