Best GPU - monitor connection method?

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de Carabas
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Best GPU - monitor connection method?

Postby de Carabas » Thu Mar 07, 2019 9:57 am

I've just had the opportunity of buying a new desktop PC. It involved smoke, mirrors, mis-direction and a little bit of pleading with the family Chief Financial Officer but I now have an i7, 16GB Ram, RTX2070, 500GB SSD based system to setup for Elite (and homework of course).

I needed a new monitor as well as the old machine is going to a daughter's room. The one I now have is an ASUS that does 144Hz. I couldn't justify the Gsync (at least not yet).

My question is, what is the best connection method from the RTX2070 to the monitor for performance? HDMI, Display Port, DVI? Or is there no real difference?
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Re: Best GPU - monitor connection method?

Postby TorTorden » Thu Mar 07, 2019 11:56 am

Display port.
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Re: Best GPU - monitor connection method?

Postby de Carabas » Thu Mar 07, 2019 12:38 pm

Simple as that? What no "it depends on what you are doing"? That was easy then :)

Thanks Tor!
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Re: Best GPU - monitor connection method?

Postby TorTorden » Thu Mar 07, 2019 1:03 pm

Souds like a very sweet setup.

Have a good one :)
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Re: Best GPU - monitor connection method?

Postby LeDoyen » Thu Mar 07, 2019 4:50 pm

You actually don't have the choice with a 144hz display. HDMI and DVI can't go that fast, so it's DP only.

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Re: Best GPU - monitor connection method?

Postby de Carabas » Fri Mar 08, 2019 2:07 pm

LeDoyen wrote:You actually don't have the choice with a 144hz display. HDMI and DVI can't go that fast, so it's DP only.

You learn something new every day. Thanks.
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Re: Best GPU - monitor connection method?

Postby Jumica » Wed Apr 24, 2019 4:46 pm

i have recently built a similar PC with an i7 8700k and RTX 2070, looks and runs so much better than my old GTX 780 machine. what settings are you using?

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Re: Best GPU - monitor connection method?

Postby de Carabas » Wed Apr 24, 2019 9:19 pm

highest on everything I think. I’ve not been in game for a couple of weeks. When I next do I'll check.
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Re: Best GPU - monitor connection method?

Postby thebs » Wed May 15, 2019 11:30 pm

de Carabas wrote:
LeDoyen wrote:You actually don't have the choice with a 144hz display. HDMI and DVI can't go that fast, so it's DP only.
You learn something new every day. Thanks.

This isn't quite true ...

HDMI 1.3+, provides up to 340 MHz of bandwidth, way, way up from the original 165 MHz. That's easily enough to do 120Hz at 1080p. There is also HDMI-DL (Dual Link) which effectively provides an equivalent rate of 640 MHz (basically 340 MHz with twice the info). HDMI-DL is how the early 4K panels were able to do 60Hz, before HDMI 2.0. So 120, 144, 160 and even 240Hz vertical refresh rates were possible at 1080p.

The problem?

Virtually no monitors or TVs provided 144Hz+ vertical refresh rates. Now a few TVs and even less, select few monitors, offered 120 Hz vertical refresh rates with varying ghosting, depending on the panel -- even in the HDMI 1.4 days, much more the few HDMI-DL ports out there.

Why weren't there more options? Several reasons ...

1) Media-TV Attitude: The biggest problem with TV and media companies is that they have little interest in producing such. Movies are 24Hz, TV is 25-30Hz or 50-60Hz, depending on the formats, the former for many shows, the latter for live broadcasts and newer shows.

2) Media Control-Copyright: Then there's also the 'control' aspect, where HDMI is actually a proprietary format, forced on content protection built-in. HDCP designed for other formats, including DVI-D and, eventually, DisplayPort.

The combinations of #1 and #2 are why we still don't see TV and other, large-format systems with DisplayPort, not even 1.2a, much less 1.3+. Plus ...

3) Intel's Legacy Supply: Intel is notorious for having over-supply of legacy (at higher feature sizes) chipset logic out there, and they really didn't push DisplayPort (DP) well ... at all. In fact, even when Intel finally added DisplayPort 1.2 support, it was non-1.2a and only did 3K@60Hz, 4K@30Hz, for years.

AMD pushed DisplayPort early, just like they did XHCI (USB 3.0) and other things, especially with their integrated GPUs. But AMD doesn't drive the market. It's really sad to see how bad the Media-TV + Intel really holds back adoption.

The ultimate irony here is that DisplayPort is cheaper to support, because it doesn't require a RAMDAC.

AMD and nVidia ... even Mali, PowerVR, Adreno and others in ARM ... adopted this for cost reasons, including for Embedded Display Port (eDP) in notebooks, tablets, etc... Intel still had old, legacy solutions with more costly designs for notebooks -- which explains why tablets quickly overtook notebooks in resolution, capabilities, etc... too at the same price-point.
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