Announcement: Our new CyberLink Feedback Forum has arrived! Please transfer to our new forum to provide your feedback or to start a new discussion. The content on this CyberLink Community forum is now read only, but will continue to be available as a user resource. Thanks!
CyberLink Community Forum
where the experts meet | Advanced Search >
Forum Index » PowerDirector (previous versions)
  • Recent Topics
  • |
  • Register
  • |
  • Login
Oh no! Not getting smooth 4K or 1080@120fps playback with GTX 960
tpallred1 [Avatar]
Newbie Joined: Jul 20, 2015 14:51 Messages: 45 Offline
[Post New] Sep 03, 2015 19:57
Just built the following machine http://pcpartpicker.com/p/DjNPBm and feeling heartsick. It doesn't play 4K or 1080p@120fps any better than my Dell Inspiron 570 with upgraded Phenom II 945 CPU and GTX 750 Ti with 8GB of RAM. Hesitates and jerks along. Windows performance monitor shows it only using 3GB of RAM and 14% of the CPU. I know other people are playing/editing 4K with this same setup. Any ideas what I could be doing wrong? Tom
i7-4790K, Asus Z97-A, 16GB RAM, GTX 960, SSDs, Monoprice 28" 4K CrystalPro, Acer 23" 1080p H236HL - Full system at http://pcpartpicker.com/p/kYxw23
optodata
Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline
[Post New] Sep 03, 2015 21:21
I assume you're talking about the preview windows, and not when playing a video you produced in PD13.

4k and 120fps take a lot of horsepower to edit in full definition in real time, so the best choice - even on a powerful machine like yours - is to reduce the preview resolution to High AND use shadow files. Wait until the shadow files are finished processing (the yellow ready in each clip in the media library turns green) before you start editing.

YouTube/optodata

DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors

Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°
tpallred1 [Avatar]
Newbie Joined: Jul 20, 2015 14:51 Messages: 45 Offline
[Post New] Sep 03, 2015 21:33
No, I'm talking about just playing 4K video, not editing. I ran my proposed build by at least 4 hardware forums, and asked here, and all comments were that it should do the job. Now that I'm posting about the choppy video, everybody is like "OMG! Why did you buy such an underpowered GPU? That's not going to work!" Even EVGA advertises the 960 as 4K capable so I'm kind of lost at the moment. Tom
i7-4790K, Asus Z97-A, 16GB RAM, GTX 960, SSDs, Monoprice 28" 4K CrystalPro, Acer 23" 1080p H236HL - Full system at http://pcpartpicker.com/p/kYxw23
tomasc [Avatar]
Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline
[Post New] Sep 03, 2015 22:40
I have no problem playing 4k YouTube video although it's at 2K resolution. Downloaded 4k YT videos and found that the 120fps has been reduced to 30 fps. Where do go to view actual 4k 120 fps video. Vimeo?

This message was edited 1 time. Last update was at Sep 03. 2015 22:40

tpallred1 [Avatar]
Newbie Joined: Jul 20, 2015 14:51 Messages: 45 Offline
[Post New] Sep 03, 2015 22:57
The problem was QuickTime. Plays perfectly with VLC. My heart is beating again. Next I'll try PD13. Tom
i7-4790K, Asus Z97-A, 16GB RAM, GTX 960, SSDs, Monoprice 28" 4K CrystalPro, Acer 23" 1080p H236HL - Full system at http://pcpartpicker.com/p/kYxw23
tomasc [Avatar]
Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline
[Post New] Sep 03, 2015 23:49
Glad that you solved your 4k viewing problem for now. Check out this link for free 4k 120fps video: http://ultravideo.cs.tut.fi/#testsequences . Look at the 5 seconds Beauty clip. The 4k clip downloaded as 4k avc 8 bit mp4 is 30fps and 30 MB and plays perfectly in vlc from my hard drive. I am downloading the raw version at 120fps at 4GB size. When it finish downloading I know no consumer pc will be able to play it even from your Samsung 525 Mb/sec rated ssd. A sustained speed of 4GB/5 sec. = 800 Mb/sec. will be required for no hesitation and jerks.

This message was edited 1 time. Last update was at Sep 03. 2015 23:51

tpallred1 [Avatar]
Newbie Joined: Jul 20, 2015 14:51 Messages: 45 Offline
[Post New] Sep 03, 2015 23:57
The 120fps was for 1080, not 4K. I don't have anything that records 4K @ 120fps. The 1080 120fps still isn't completely smooth although the 4K is. It was just for testing. I don't have a real need to produce or display it. Tom
i7-4790K, Asus Z97-A, 16GB RAM, GTX 960, SSDs, Monoprice 28" 4K CrystalPro, Acer 23" 1080p H236HL - Full system at http://pcpartpicker.com/p/kYxw23
tomasc [Avatar]
Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline
[Post New] Sep 04, 2015 00:09
I know of no 1080p120 video for normal playback. the 120fps is for slow motion playback. Mine can do 240fps but again that is for 8x slow motion playback.
tpallred1 [Avatar]
Newbie Joined: Jul 20, 2015 14:51 Messages: 45 Offline
[Post New] Sep 04, 2015 00:19
Yeah, that's what I thought it was for but my system plays it back at normal speed except for the chop. Oh well, doesn't matter. Tom
i7-4790K, Asus Z97-A, 16GB RAM, GTX 960, SSDs, Monoprice 28" 4K CrystalPro, Acer 23" 1080p H236HL - Full system at http://pcpartpicker.com/p/kYxw23
Powered by JForum 2.1.8 © JForum Team