4K downsampling to 1080p

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Kevkas

Kevkas

Honorable
Oct 25, 2015
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10,535
Hi guys, I have the following things:

- Graphics Card: EVGA GeForce GTX 980 Ti SC+ GAMING ACX 2.0+
- Monitor: Samsung SyncMaster BX2250 21.5" LED 2ms
- HDMI to HDMI 1.4
- HDMI to DVI (single link)

The 980 Ti can output a 4K resolution, but the monitor only goes up to 1080p (Maximum resolution 1920x1080 @ 60 Hz) so I would like to try downsampling 4K to it. The question is: which port should I use, and which cable?

The graphics card supports HDMI 2.0 and Dual-link DVI.
The monitor has two HDMI ports (the manual doesn't specify which version they are, but undoubtly they aren't 2.0, my guess is 1.4 at most).

So my question is: using what I have which cable and which port should I use to try to get 4K downsampled to 1080p at the highest Hz possible? HDMI 1.4 cable can't transmit 4K @ 60 Hz right?

I will be buying a new monitor in 4 or 5 months, but I figured it wouldn't hurt to ask.
 
Solution
Palewing
If you want to use a higher resolution in games, use DSR in the nVidia control panel, and set the smoothness to around 20%. The cable has no effect on this. If there's another reason for why you would want to downscale from 4K, let me know.
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Palewing

Palewing

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May 9, 2015
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If you want to use a higher resolution in games, use DSR in the nVidia control panel, and set the smoothness to around 20%. The cable has no effect on this. If there's another reason for why you would want to downscale from 4K, let me know.
 
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Solution
Kevkas

Kevkas

Honorable
Oct 25, 2015
46
4
10,535


Yeah actually that helps.

A small follow up question if I may: I currently have the the DVI to HDMI connected from the graphics card (DVI) to the monitor (HDMI). Putting sound aside, are there any benefits to using HDMI to HDMI instead of DVI to HDMI in this case? I don't care about sound cause I use and external DAC, I'm just trying to see if the screen resolution, the Hz, and the overall quality is better in one or the other.
 
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Palewing

Palewing

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May 9, 2015
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HDMI and DVI will deliver the same quality picture, unless the cable doesn't support your desired resolution/hz (Dual-link vs Single-link DVI for instance). Some DVI cables might (theoretically) not support HDCP copy protection, but I would not worry about that. Unless you have dropouts or artifacts, you should be good to go.
 
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