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Can a 1440p monitors (multi-input with HDMI) be overclocka​ble to 120Hz?

post #1 of 15
Thread Starter 
Hi,

I can't decide which monitors to buy!

My needs are:

Response time 6 ms or better.
HDMI port.
Overall good spec like the brightness.

It's a plus to have a good stand and the ability to overclock to 120Hz

1- I like the stand of the ★CROSSOVER★NEW 2730MD-P LED Pivot 27"2560x1440 HDMI1.4 IPS Overclockable Monitor US $399.00 the 6 ms is a must for me, but the 380 cd/m² is slightly less than other monitors with 420 cd/m². The question is this monitors can be overclocka​ble to 120Hz without skip frames problem? my GPU is the SAPPHIRE HD 7970 GHz Edition 3GB GDDR5 VAPOR-X

I almost bought the CROSSOVER New 27QWHDMI IPS LED 27" LG AH-IPS Panel 2560X1440 DVI HDMI PC MONITOR US US $329.00 but the stand, and the ability to overclock to 120Hz made me cancel the order even though it's has very good price with just USD329 plus I'm not sure about the HDMI is it version 1.4 or not.
Edited by Fromm - 10/30/13 at 5:15am
post #2 of 15
Considering HDMI can only currently use 120Hz at 1080P on HDMI 1.4b and there are very few devices that actually support HDMI 1.4b. The short of it is no.

Why do you need to use HDMI?
post #3 of 15
Thread Starter 
I need HDMI to use with other devices like laptop, playstation and xbox.

Is there a monitor that can support 1440p 60/120Hz with DVI-D(Dual Link) and also has HDMI port?

If not I'll then grab the CROSSOVER New 27QWHDMI IPS LED 27" LG AH-IPS Panel 2560X1440 DVI HDMI PC MONITOR USD$329.00 as having HDMI port is more important to me than 1440p 120Hz


Thanks
Edited by Fromm - 10/30/13 at 3:07am
post #4 of 15
I would personally use only dual-link DVI for 1440p, and the overclockable korean displays are not true 120Hz and are frame skipping. I would advise you to buy a proper Dell or Asus monitor and clock it to 70-80hz.
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post #5 of 15
Quote:
Originally Posted by Fromm View Post

I need HDMI to use with other devices like laptop, playstation and xbox.

Is there a monitor that can support 1440p 60/120Hz with DVI-D(Dual Link) and also has HDMI port?

Thanks

All the quality monitors support DVI dual link and HDMI and Displayport
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post #6 of 15
Thread Starter 
You mean even the monitors with only DVI-D(Dual Link) are not good at 120Hz? the truth is I was only thinking of this as just a plus+ since I'm only paying 300~400
post #7 of 15
Quote:
Originally Posted by Jeemil89 View Post

I would personally use only dual-link DVI for 1440p, and the overclockable korean displays are not true 120Hz and are frame skipping. I would advise you to buy a proper Dell or Asus monitor and clock it to 70-80hz.
You haves it in the wrong order. Some Korean monitors with only dvi do overclock in a true manner, without skipping frames. On the other hand, Dell or Asus do not overclock and ship frames when you try.

Quote:
Originally Posted by Jeemil89 View Post

All the quality monitors support DVI dual link and HDMI and Displayport
Define quality.

Quote:
Originally Posted by Fromm View Post

You mean even the monitors with only DVI-D(Dual Link) are not good at 120Hz? the truth is I was only thinking of this as just a plus+ since I'm only paying 300~400
Certain Korean monitors do overclock, like single input Qnix and Xstar. No multiple input monitor has been shown to overclock without skipping frames.
post #8 of 15
@OP: The reason why you can't use HDMI is that it does not support the bandwidth needed to drive anything past 1440p @ 60Hz. I'm not sure about the Crossovers, but the Qnix/X-Stars will definitely work without frame skipping at 1440p 120Hz with your 7970.
Quote:
Originally Posted by Jeemil89 View Post

I would personally use only dual-link DVI for 1440p, and the overclockable korean displays are not true 120Hz and are frame skipping. I would advise you to buy a proper Dell or Asus monitor and clock it to 70-80hz.

The multi-input ones are known to frame skip. But the single input DL-DVI monitors do not frame skip.

This is my Qnix QX2710 @ 120Hz. If it was frame skipping, you would see black boxes in between the row of white boxes.
    
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post #9 of 15
Both DVI and HDMI use TMDS but DVI has less lanes the HDMI can do it pretty much but there transceiver can't and they probably are using a cheap Tcon.
post #10 of 15
Thread Starter 
Quote:
Originally Posted by Kokin View Post

@OP: The reason why you can't use HDMI is that it does not support the bandwidth needed to drive anything past 1440p @ 60Hz. I'm not sure about the Crossovers, but the Qnix/X-Stars will definitely work without frame skipping at 1440p 120Hz with your 7970.
The multi-input ones are known to frame skip. But the single input DL-DVI monitors do not frame skip.

Yeah, that's pretty much what I found out by searching around here.. thanks for the confirmation.

This is my Qnix QX2710 @ 120Hz. If it was frame skipping, you would see black boxes in between the row of white boxes.

Since now I really need a 1440p-monitor with hdmi I'll just buy this CROSSOVER New 27QWHDMI IPS LED 27" LG AH-IPS Panel 2560X1440 DVI HDMI PC MONITOR USD$329.00

I might grab a Qnix/X-Stars (single input DVI-D Dual Link) if I needed another monitor later! but is the 120Hz really worth it with response time of 6/8 ms?!
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