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4K 60Hz on a 2012 rMBP 15"

erkanasu said:
Sorry for not clarifying -- I mean hooking up at 4K monitor @ 60Hz in the HDMI port.
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I don't think so. It's only got a 10 Gb/s Thunderbolt port. The bandwidth isn't enough to drive 4K at 60Hz. You might have some luck driving it at 30Hz or 24Hz.
 
not working. Neither with HDMI (1.4) nor Thunderbolt (1). HDMI 1.4(a) should be able to output 4k (2160p) at 24 Hz
 
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