topic Re: 4k with HD 4600 in Graphics

4k with HD 4600

Anonymous — Wed, 03 May 2023 22:39:57 GMT

Hi community,

I have a i7 4785 T on a ASUS Gene VII board which has only a HDMI port.

I would like to run a 4K display at 60 Hz with it.

Is UHD with 60 Hz possible via a HDMI-cable?

I know the data-sheet says: Max Resolution (HDMI)^‡4096x2304@24Hz

If "no" would a (active) adapter HDMI to DP make UHD with 60 Hz possible?

Because the data-sheet says Max Resolution (DP)‡3840x2160@60Hz

Thank you for your time and help. 🙂

Re: 4k with HD 4600

n_scott_pearson — Wed, 03 May 2023 23:51:30 GMT

No, you are stuck with HDMI 1.4 and only 2160p@30Hz. If fact, it is rare to find a motherboard whose HDMI port can support better than 1080p@60Hz. The implementations back then were poor.

No, you can't make a 60Hz HDMI output from a 30Hz HDMI input; it simply isn't possible.

The only way to get 4K@60Hz on your machine would be via a DisplayPort 1.2 port, either one provided directly or secondarily via Thunderbolt. If you motherboard doesn't provide one of these ports, you are simply out of luck.

Sorry, reality bites,

...S

Re: 4k with HD 4600

Anonymous — Thu, 04 May 2023 09:20:51 GMT

Thank you for your answer.

Did I get it right, that in my case the board respectively the HDMI 1.4 port on it is the limiting factor?

So if the board manual says:

HDMI with max. resolution 4096x2160@24Hz / 2560x1600@60Hz

I can at least have QHD 2560 x 1440@60Hz with my hardware or does it exactly have to be 2560x1600@60Hz?

Would 4k@24 Hz in general be to poor to watch movies with it?

Re: 4k with HD 4600

n_scott_pearson — Thu, 04 May 2023 21:04:54 GMT

Nothing that you have said is wrong, per se, but I will say that I have seen reports of these older drivers having problems with the QHD/WQHD resolution - and I have never had such a monitor to try this myself so I can't say one way or the other.

I can only say that my eyes don't want to watch at 24Hz - or even 30Hz if I can avoid it. I say get yourself an add-in video card that can give you 4K@60Hz.

...S

Re: 4k with HD 4600

Anonymous — Thu, 04 May 2023 23:46:26 GMT

Thanks for your advice ... I will think this over.

The thing is that I have to calculate a little bit before buying a video card of lets say 20 W.

I have a 120 W power supply.

i7 4785t needs 35 W + "x"

Mainboard needs ~ 15 W

SSD ~ 5 W

Ram ~ 5 W

...

The question is how much is "x" with the i7 4785t in Windows 10 Balanced Mode. Do you by chance know something about it?