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All replies
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Helpful answers
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Dec 6, 2013 8:24 AM in response to ChrBartby johnniecache,As far as i know, the only way to get 4k@60Hz out of a MacBook Pro is via Thunderbolt's integrated Displayport 1.2 in Multistream mode.
Also this is currently only possible with Windows.
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Dec 6, 2013 8:26 AM in response to NiqueXyZby ChrBart,"there is no display port to HDMI adapter that goes higher than 1080p." - but it should not be impossible to build one, right? Displayport does 4K@60Hz and HDMI2 does 4K@60Hz.
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Dec 6, 2013 8:27 AM in response to johnniecacheby NiqueXyZ,100% correct.
We were talking about a future product that would be a thunderbolt (PCIe) based GPU that would add an HDMI 2.0 port to an existing mac.
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Dec 6, 2013 8:29 AM in response to NiqueXyZby ChrBart,why would you need an external GPU when you already have a, let's say Iris Pro, that is perfectly capable of doing 4K@60Hz via Thunderbolt?
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Dec 6, 2013 8:29 AM in response to ChrBartby johnniecache,Its about driver support (which is currently missing in Mac OX X)
Should work without modifications on a normal windows installation.
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Dec 6, 2013 8:30 AM in response to ChrBartby NiqueXyZ,It works on Windows because the 750M and Iris pro drivers support it.
On OS X Mavericks, the drivers don't support it, or there is something else in the OS that supports it.
""there is no display port to HDMI adapter that goes higher than 1080p." - but it should not be impossible to build one, right? Displayport does 4K@60Hz and HDMI2 does 4K@60Hz."
I guess, but it's probably going to be very expensive.
I don't know, can't speak on such matters as HDMI 2.0 products are not shipping and won't for at least a few months.
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Dec 6, 2013 9:07 AM in response to NiqueXyZby jdiamond,> The "Adapter" is not an adapter as you think.
> there is no display port to HDMI adapter that goes higher than 1080p.
It's not nearly as bad as that. There are < $40 adapters right now that do Thunderbolt to HDMI and gt 4K@30fps - with plenty of posts confirming this to be the case. The adapters DO have to be active, but they don't have to be an entire GPU. (Provided your GPU+drivers suport 4K@30) So I can't imagine things would look different at 60 Hz. But again it won't matter if most displays adapt DisplayPort.
There is great hope/anticipation in the community that Mavericks will get an update to enable multi-stream support, motivated in part by the Mac Pro release.
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Dec 6, 2013 9:10 AM in response to jdiamondby NiqueXyZ,Can you show me one? I can't find any that go higher than 1808p.
It's not "thunderbolt" to HDMI btw, it's displayport.
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Dec 6, 2013 9:21 AM in response to MacPlus87by jdiamond,I still can't get over how blind-sided the entire industry was by this... 4K @ 60Hz by 2014 - wow, none of us ever saw that coming. Honestly, this is the first time in 25+ years I have to buy a new computer just to use a state of the art display. What ever happened to putting in a few years of future proofing?
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Dec 6, 2013 9:19 AM in response to NiqueXyZby jdiamond,I'm not speaking from first hand experience, but this adapter has been a favorite for people with older Macs using the 39" Seiki 4K monitor at 30 Hz:
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Dec 6, 2013 9:23 AM in response to jdiamondby NiqueXyZ,Awesome...thanks.
I wonder if the ability to add multi stream DP will put a higher price on it though...
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Dec 14, 2013 4:18 AM in response to NiqueXyZby mg428,NiqueXyZ: "So in order to get this you have to run windows 8 on your mac"
How about Windows 7? Will it output 4K @ 60Hz? If so, which editions (Home, Ultimate, etc.) of Windows 7 -and also Windows 8- are capable of doing this?
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Dec 14, 2013 11:40 AM in response to mg428by kogir,Well, the hardware supports it, so as long as you can find drivers Windows 7 should work fine too. With proper drivers, the edition of Windows 7, 8, or 8.1 doesn't matter - all should work.