Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

2nd Gen and 4K Display

S

sasha.danielle

macrumors regular
Original poster
Mar 15, 2015
218
18
I realize this is all speculation, but I'm wondering if anyone thinks the Skylake Macbook will be able to run a 4k display.

I'm thinking two months ago nobody believed the Broadwell rMBP would run a 4k and yet it seems to do so easily.

Might we also be surprised by a Skylake Core M?
 
sasha.danielle said:
I realize this is all speculation, but I'm wondering if anyone thinks the Skylake Macbook will be able to run a 4k display.

I'm thinking two months ago nobody believed the Broadwell rMBP would run a 4k and yet it seems to do so easily.

Might we also be surprised by a Skylake Core M?
Click to expand...

I'm sure it will. I bet you won't get one until around Christmas, though (at the earliest).
 
I desperately need a new laptop. This one meets my needs except for being it also to run a 4k. I think I'll buy the first gen and then take the hit on the resell when gen 2 comes out.

I'm also thinking about buying a rMBP but I feel like I'm going to want to update that to skylake too anyway.
 
sasha.danielle said:
I desperately need a new laptop. This one meets my needs except for being it also to run a 4k. I think I'll buy the first gen and then take the hit on the resell when gen 2 comes out.

I'm also thinking about buying a rMBP but I feel like I'm going to want to update that to skylake too anyway.
Click to expand...

I wonder how much of a hit we would take. Speaking about those who want to grab one now and resell for V2.
 
Even if the Skylake Core M can power a 4K monitor at 60Hz, which I think should be doable, the issue lies with the USB 3.1 type c connector which doesn't have the bandwidth to support 4K @ 60Hz.
 
sasha.danielle said:
I desperately need a new laptop. This one meets my needs except for being it also to run a 4k. I think I'll buy the first gen and then take the hit on the resell when gen 2 comes out.

I'm also thinking about buying a rMBP but I feel like I'm going to want to update that to skylake too anyway.
Click to expand...

I'm hoping to buy the 1st and 2nd (Skylake) generations.

----------
SSD-GUY said:
Even if the Skylake Core M can power a 4K monitor at 60Hz, which I think should be doable, the issue lies with the USB 3.1 type c connector which doesn't have the bandwidth to support 4K @ 60Hz.
Click to expand...

It already supports DP2 which is good enough. It doesn't depend on USB-C bandwidth.
 
For the most part I don't think people looking at the rMB aren't looking closely at specs or generations. As far as they're concerned this is a new machine. Also, it's in a lot of ways a mobile device so I would expect that to help as well. In Canada they sell for 1500. 8 months down the road I'm sure I could sell it for 1350. That saves three person 150 plus the two hundred in taxes. Of course if the next model sells cheaper we would have to lower our price accordingly. But that's neither here not there really because that just translates to savings for us too.
 
iRun26.2 said:
I'm hoping to buy the 1st and 2nd (Skylake) generations.

----------



It already supports DP2 which is good enough. It doesn't depend on USB-C bandwidth.
Click to expand...

this. It will support 4k @ 60hz. Apple even list that on their website
https://support.apple.com/en-us/HT202856

With OS X Yosemite v10.10.3, most single-stream 4K (3840x2160) displays are supported at 60Hz operation on the following Mac computers:
MacBook Pro (Retina, 13-inch, Early 2015)
MacBook Pro (Retina, 15-inch, Mid 2014)
Mac Pro (Late 2013)
iMac (27-inch, Late 2013 and later)
Mac mini (Late 2014)
MacBook Air (Early 2015)
MacBook (Retina, 12-inch, Early 2015)
 
Well, in either case then, even if this one is cusp, skylake should be able to pick up whatever slack there might be...
 
I'm not. I'm just going to buy now (or whenever they're actually in the store) and replace it with gen 2.
 
According to Apple, already the current MB can run a 4K display, so I don't really understand the question. It is supposed to support DP 1.2, which is enough to run a 3840 x 2160 @60 AFAIK.

Please correct me if I am wrong.
 
Arstechnica said even 30hz was sketchy.

http://arstechnica.com/apple/2015/04/the-2015-macbook-previews-a-future-thats-not-quite-here/3/#h4
 
tillsbury said:
That's from a review unit, which came with 10.10.2 and bodges to make it work. It might easily be that 10.10.3 (or later) will do it fine. Same issues with 60Hz on rMBPs with different OS versions a year or so back.
Click to expand...

Well the only pros that support 4k @ 60hz are the 2014 15" and the new 2015 13"
 
mattopotamus said:
Well the only pros that support 4k @ 60hz are the 2014 15" and the new 2015 13"
Click to expand...

And since Core M has the same GPU (albeit with half shader cores disabled) as the 2015 MBA and MBP — both of which support 4K@60, there is not much reason why it wouldn't do the same. Contrary to what SSD-GUY says, the USB 3.1 Gen1 bandwidth is not a problem because the video signal is not transferred via the USB controller — it is directly muttered to the GPU.

Of course, its still possible that there is a limitation of some sort. However, I'd suggest we wait for some further evidence before we settle on that explanation. As said before, there are reasons to mistrust the arstechnica results on this one.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back