AMD/ATI Pixel Clock Patcher
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01-02-2020, 06:49 PM
Post: #954
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RE: AMD/ATI Pixel Clock Patcher
I've tried to search, but am not really getting any relevant results, so I hope people'll forgive me for perhaps asking a question that has already been answered:
I have 2 4k monitors, both with DP 1.2 connectors. Both monitors basically refuse to go above 71hz custom refresh rates, and this struck me as pretty weird. So I had a look at what bandwidth limits DP 1.2 (and HDMI 2.0) have, and I found that for DP 1.2, we're talking about 17.3Gbit. My question is: what effective upper limit should this imply? This calculator suggests even 4k70 shouldn't be possible (using 8bit color for my TN panel): https://k.kramerav.com/support/bwcalculator.asp ; while 10bit (IPS) should be hopeless. is this correct? |
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