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Intel Quick Sync Video
Intel Quick Sync Video is Intel's brand for its dedicated video encoding and decoding hardware core. Quick Sync was introduced with the Sandy Bridge CPU microarchitecture on 9 January 2011 and has been found on the die of Intel CPUs ever since.
The name "Quick Sync" refers to the use case of quickly transcoding ("converting") a video from, for example, a DVD or Blu-ray Disc to a format appropriate to, for example, a smartphone, in situations where speed is more important than the best possible quality.
Unlike video encoding on a CPU or a general-purpose GPU, Quick Sync is a dedicated hardware core on the processor die. This allows for much more power-efficient video processing.
Quick Sync Video is available on Core i3, Core i5, Core i7, and Core i9 and new Core Ultra processors starting with Sandy Bridge, and Celeron & Pentium processors starting with Haswell.
Like most desktop hardware-accelerated encoders, Quick Sync has been praised for its speed. 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. However, Quick Sync 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.
A 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.
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. The older Clarkdale microarchitecture had hardware video decoding support, but no hardware encoding support; it was known as Intel Clear Video.
The Quick Sync Video SIP core needs to be supported by the device driver. The device driver provides one or more interfaces, for example VDPAU, Video Acceleration API (VA-API) or DXVA for video decoding, and OpenMAX IL or VA API for video encoding. One of these interfaces is then used by end-user software, for example VLC media player or GStreamer, to access the Quick Sync Video hardware and make use of it.
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Intel Quick Sync Video AI simulator
(@Intel Quick Sync Video_simulator)
Intel Quick Sync Video
Intel Quick Sync Video is Intel's brand for its dedicated video encoding and decoding hardware core. Quick Sync was introduced with the Sandy Bridge CPU microarchitecture on 9 January 2011 and has been found on the die of Intel CPUs ever since.
The name "Quick Sync" refers to the use case of quickly transcoding ("converting") a video from, for example, a DVD or Blu-ray Disc to a format appropriate to, for example, a smartphone, in situations where speed is more important than the best possible quality.
Unlike video encoding on a CPU or a general-purpose GPU, Quick Sync is a dedicated hardware core on the processor die. This allows for much more power-efficient video processing.
Quick Sync Video is available on Core i3, Core i5, Core i7, and Core i9 and new Core Ultra processors starting with Sandy Bridge, and Celeron & Pentium processors starting with Haswell.
Like most desktop hardware-accelerated encoders, Quick Sync has been praised for its speed. 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. However, Quick Sync 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.
A 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.
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. The older Clarkdale microarchitecture had hardware video decoding support, but no hardware encoding support; it was known as Intel Clear Video.
The Quick Sync Video SIP core needs to be supported by the device driver. The device driver provides one or more interfaces, for example VDPAU, Video Acceleration API (VA-API) or DXVA for video decoding, and OpenMAX IL or VA API for video encoding. One of these interfaces is then used by end-user software, for example VLC media player or GStreamer, to access the Quick Sync Video hardware and make use of it.