144hz monitor wont let me go above 70hz

Nato85

Reputable
Nov 13, 2015
17
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4,510
Hey Guys

I recently built a new computer complete with a RTX 2080 and 2 Acer KG271U 144hz 27" Monitors and I have noticed one monitor is operating at 70hz.

The first monitor is using a display port cable and it lets me go to 144hz but the second monitor is using HDMI and its not letting me go above 70hz.

Is it because I am using a HDMI cable over a Display Port cable?
 
Thank you for your answer guys! I have just ordered myself another Display Port cable as my video card has 2 DP ports.