This generation of Quick Sync supports the H.264/MPEG-4 AVC, VC-1 and H.262/MPEG-2 Part 2 video standards. Version 3 ( Haswell) The Haswell microarchitecture implementation is focused on quality, with speed about the same as before (for any given clip length vs. Version 2 ( Ivy Bridge, Bay Trail) The Ivy Bridge microarchitecture included a "next-generation" implementation of Quick Sync. Version 1 ( Sandy Bridge) Quick Sync was initially built into some Sandy Bridge CPUs, but not into Sandy Bridge Pentiums or Celerons. The older Clarkdale microarchitecture had hardware video decoding support, but no hardware encoding support it was known as Intel Clear Video. Quick Sync was first unveiled at Intel Developer Forum 2010 (September 13) but, according to Tom's Hardware, Quick Sync had been conceptualized five years before that. Main article: Intel Graphics Technology § Capabilities (GPU video acceleration) Ī 2012 evaluation by AnandTech showed that QuickSync on Intel's Ivy Bridge produced similar image quality compared to the NVENC encoder on Nvidia's GTX 680 while performing much better at resolutions lower than 1080p. However, QuickSync could not be configured to spend more time to achieve higher quality, whereas x264 improved significantly when allowed to use more time using the recommended settings. The eighth annual MPEG-4 AVC/H.264 video codecs comparison showed that Quick Sync was comparable to x264 superfast preset in terms of speed, compression ratio and quality ( SSIM) tests were performed on an Intel Core i7 3770 ( Ivy Bridge) processor. Like most desktop hardware-accelerated encoders, Quick Sync has been praised for its speed. Before Haswell, only Core i3/5/7 featured Quick Sync. Haswell-based Pentium-branded CPUs include Quick Sync Video, while Celeron-branded CPUs do not. 6.1 Hardware video hardware technologies.
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