4K / 60FPS on GH5: What kind of video card might one need?

[Forkenbrock]

I recently purchased one of these video cards - EVGA GeForce GTX 1050 Ti SC and I was starting to wonder whether it will be up to the task when it comes to playback of files from the upcoming Panasonic GH5 at 4K / 60fps? I've read the initial bitrate is 200mb/s and the firmware update will have an option for 450mb/s. The card does 2K / 60fps video games and I assume video playback is less resource intensive than video games, but I don't know enough to guess what to expect. Can anyone offer some educated insight?

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www.amazon.com

 

[Forkenbrock]

This article seems to suggest this card for HTPC.

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techbuyersguru.com

 

[gteague]

I recently purchased one of these video cards - EVGA GeForce GTX 1050 Ti SC and I was starting to wonder whether it will be up to the task when it comes to playback of files from the upcoming Panasonic GH5 at 4K / 60fps? I've read the initial bitrate is 200mb/s and the firmware update will have an option for 450mb/s. The card does 2K / 60fps video games and I assume video playback is less resource intensive than video games, but I don't know enough to guess what to expect. Can anyone offer some educated insight?

https://www.amazon.com/EVGA-GeForce-GAMING-Support-04G-P4-6253-KR/dp/B01MF7EQJZ

from my reading on the gh5 so far, i got the impression that for now current high-end cards such as the lexar 1000x and the sandisk extreme pro will work for 4k video. but, i also got the impression that when they come out with the expanded bitrate and 10-bit internal, a 'v' card will be required and i think perhaps a v90. and there aren't really any of them so far.



some of my current cards do say 'v30' on them and a search turned up a couple of delkin's which were supposed to be v90, but i wouldn't trust the standard not to change between now and the update.



sorry i don't have citations--i've gone through a lot of material in preparation for the rollout of the camera next month.

/guy

 

[gteague]

my apologies, you said video card, not memory card. still, i'll leave my reply up for those whom it might interest.

sorry, /guy

 

[TXDego]

You should be OK with that card, its on the low end of video cards, but should still provide you with OK results.

The problem with 4K its not just the video card its also the processor. Playing video games takes very little processor power, but uses a lot of video card resources to render. 4K video rendering/creating on the other hand tasks both the processor & video card simultaneously, so its really a combination of the two that makes for smooth results.

A lot of HTPC builds don't even use a video card, they just use the processors to do all the work, and they play 4K fine. Take for example all the sub $50 Android/Roku/Amazon Fire/Kodi boxes that playback 4K no problem, not a lot of horsepower in those, not even really very powerful GPU's. There is a big difference between playback of 4K and rendering/creating 4K is two vastly different things.

Hope I did not make your question more confusing for you, but without knowing what you are trying to do, its hard to give you a better answer.

Good Luck!

 

[LingoDingo]

For your computer, any nVidia or AMD based mid-range video card should have no problem playing the 4K 150 Mbps IPB camera footage.

Things will actually get better once the GH5 400 Mbps summer upgrade firmware is released because this 4K ALL-I footage will be much less compressed than the 150 Mbps IPB footage, so it will take less processing power to playback the video stream.

On the GH5 camera side of things, you will need to buy high performance SDXC V60 memory cards to be able to record at 400 Mbps. These cards aren't really here yet ( Delkin currently sells a couple of V90 cards ) but they should be here by summer 2017, and I expect they will be expensive.