เอิ๊กๆ
Ah, but we love mixing things up. Both MainConcept and HandBrake center on software-based encoders. They’re both limited to the performance of your processor. But Intel and AMD uniquely support hardware-accelerated transcoding features, too. Core i3’s HD Graphics 3000 engine includes Quick Sync, while A8-3850 includes UVD 3-based decoding acceleration and encode acceleration through the GPU’s 400 ALUs.
I’ve received emails questioning the use of Quick Sync as cheating in favor of Intel, since it employs a black box of sorts to alter the output quality. That's actually an interesting angle to explore. The fact of the matter is that any time you use hardware acceleration, including AMD’s, to parallelize a transcoding workload, the output file is going to deviate from the source. If you want to explore the implications of utilizing hardware to speed up your transcodes, check out Video Transcoding Examined: AMD, Intel, And Nvidia In-Depth, where we go into depth on this very issue. If quality is your main concern, disable acceleration features altogether and stick with software.
CyberLink’s MediaEspresso 6.5 not only allows us to test software-only, but it also supports Intel’s and AMD’s respective hardware-based capabilities.
Amazingly, Quick Sync is the only technology worth using. MediaEspresso correctly defaults to software mode when we fire up the 890GX and Llano-based configurations for the first time, as the benefit to using hardware-based decode and encode is minimal.
Higher-end discrete cards with more general-purpose compute power might fare better, but these lightweight integrated engines simply don’t have the displacement to drag race against Intel’s fixed-function implementation.
-------------------------------------------------------------------------------------
^แปลว่าไรครับ ช่วยที