4k videos lag with video players in Windows 10

[Jorge Avitia]

So I recently purchased a 4K monitor and I downloaded an uncompressed 4K video to test out the display. I have tried to use VLC, 5K player, windows media player, GOM Player and so many other ones. I have a pretty good graphics card that can run games like GTA V in 4K on high settings with now issues and I just don't understand why or how a 4k uncompressed video that is downloaded not streaming have any lag or stutter at all?

Link to my graphics card: https://www.amazon.com/gp/product/B00IDG3IDO/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

CPU: https://www.amazon.com/gp/product/B009O7YUF6/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1

4K monitor: https://www.amazon.com/Samsung-U28E590D-28-Inch-LED-Lit-Monitor/dp/B00YD3DBOC/ref=sr_1_2?s=pc&ie=UTF8&qid=1479589370&sr=1-2&keywords=samsung+4k+monitor

Screenshot of issue:

 

[Sinistercr0c]

I'm surprised your GPU can play a game like GTA V in 4K high settings at anything other than slideshow frame rates:

http://www.guru3d.com/articles_pages/gta_v_pc_graphics_performance_review,6.html

What kind of connection are you using to your monitor HDMI or displayport?

 

[Jorge Avitia]

I'm surprised your GPU can play a game like GTA V in 4K high settings at anything other than slideshow frame rates:

http://www.guru3d.com/articles_pages/gta_v_pc_graphics_performance_review,6.html

What kind of connection are you using to your monitor HDMI or displayport?

it is a displayport connection and yes I can play @ 4k but with MSAA turned off.

 

[sizzling]

I doubt your outputting 4k in GTA V. My guess is your running 720p or 1080p and your TV is upscaling. A 750Ti is not strong enough to play games like GTA V @ 4k. The 750Ti was a entry level 1080p card two graphics card generations ago.

Your video stuttering at 4k I expect to be either the GPU, VRAM or possibly a CPU thread maxing out at 100%. Monitor your GPU, VRAM and cpu usage (individual threads) while playing video and report back to us.