Question 3440X1440 @144hz what cable to buy/is my gpu ports compatible?

Dec 1, 2020
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Hey guys im currently looking at what cables to purchase to run 3440X1440 @144hz I've narrowed it down to DisplayPort to Mini DisplayPort V1.4 and
HDMI 2.0 (leaning more towards HDMI cable) so I would like if someone can help confirm if these cables can be used to achieve 3440X1440 @144hz. Now my monitor is HDMI 2.0 compatible but I'm not sure if my gpu connections will limit whether I can use these cables to get 144hz. My gpu is a GIGABYTE R9 280 WindForce 3X OC but I absolutely cant find any information on whether the mini display port on the gpu is 1.4 compatible or HDMI 2.0 compatible. Any help would be appreciated thanks!
 
Dec 1, 2020
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The R9 280 supports DisplayPort 1.2 and HDMI 1.4. You can run up to 3440 × 1440 at 120 Hz using DisplayPort, or 50 or 60 Hz using HDMI depending on what the monitor supports.
Thanks so much, how did u find the information about the gpu's connections?
 

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