I can only guess that the "original" 4K mode is worse than 1080p because of Adobe Flash player processing: it may simply not know what to do with such high quality video.
According to Pavel P who commented on this post, his 27" iMac with Core i7 CPU had no issues either. HP Z800 with dual Xeon E5530 CPUs and NVidia Quadro CX card had no issues although the visual quality of the video in the original mode is still noticeably worse than in 1080p mode and even 720p mode: not as sharp, with visible gradients and pixelized lines. (Added 10:57am) Current computers with high performance multi-core Intel and AMD CPUs will likely play back 4K videos in their "original" mode smoothly. Here is the 4K clip I tried - see if your results are better. The monitor is the 30-inch HP LP3065 with 2560x1600 resolution. My 3-year-old office machine (Intel C2.4GHz CPU, 4GB RAM, GeForce 8800GTS graphics, Vista 64) sure does choke: choppy playback, severe compression artifacts. The vast majority of computers will choke on 4K. People attempting to view 4K clips on their supposedly high end systems will be disappointed to not being able to see the 4K quality. None of them are accessible to regular mortals outside of 4K post production houses and Malibu celebrity row. Seriously, most high resolution monitors max out at 1080p and there are very, very few monitors or projection screens out there that can display 4K. Then go to your nearest Imax theater - they should let you fire up your 4K YouTube video after hours, right? Or, rent one of those 4K projectors and a 25' screen for something like $5K a day. watch it on your iPhone? Oh wait, it's less than 4 inches and you need 25 feet of real estate to view it. You go buy a 4K Red One camera ($25-50K with lenses and accessories), shoot an awesome 4K video, upload it to YouTube and. That's 6 times your average Joe's 50-inch TV and most apartment walls are 10 to 14 feet unless you feel like finding an empty wall at Ralph's. The official YouTube blog post says that "the ideal screen size for a 4K video is 25 feet".
0 kommentar(er)
