How are you using the integrated GPU in Windows? I thought that it didn't work correctly?
? i see what you're asking. i'm probably on my discrete GPU (650M) right now.
there's probably a way to force integrated HD4000, but i never bothered.
How are you using the integrated GPU in Windows? I thought that it didn't work correctly?
? i see what you're asking. i'm probably on my discrete GPU (650M) right now.
there's probably a way to force integrated HD4000, but i never bothered.
it has to have a discrete GPU, thunderbolt won't output another monitor with integrated
(well, i haven't tried a low-res monitor. that might work..)
ex: w/ rMBP, i can't use integrated to output to my 2560x1440 monitor (in OSX or windows) - discrete has to be on
The Thunderbolt connector uses DP pipelines for video, so they are equal from that stand point.
My point was that you can still connect an external graphics processor to Thunderbolt. Sort of like how we have USB 3.0 graphics adapters that support outputting to HDMI.
Thunderbolt is still a PCIE connection after all.
The Sony Vaio Z had a graphics docking station that supported an external HD 6650M graphics processor for video output both to the internal display and to external displays using the same principle.
The HD4000 supports up to 3 display devices (2 DP and 1 DVI/HDMI/VGA.) It supports 2560x1600 for DP and up to 1920x1200 with an aux DP plus another 1920x1200 via DVI. So in theory, you could have three monitors like this:
DP port 1: 2560x1600
DP port 2: up to 1920x1200
DVI port: up to 1920x1200
All running concurrently. That is what it "supports", I doubt you would get smooth performance when running intensive tasks though. So that's your answer. Apple will have to limit the external resolution that the MBP can output OR step down the resolution of the MBP's built in monitor when a high resolution monitor is hooked up OR require the MBP be in clamshell mode when hooked to a high resolution external monitor.
Unless they figured out some trickery to make it work.
Yeah, but I wouldn't say that is a step in the right direction. If you have to buy a 400+ dollar thunderbolt GPU to run your current monitor, you may as well just get a 15" rMBP. It is a limitation to consider when making a 13" purchase and it will be interesting to see what decision Apple made tomorrow.
Running a display at native resolution is a LOT easier than running a display at 2x a custom resolution then scaling down to a native resolution. When you are dealing with screen resolutions that are 3360x2100, that's a lot of pixels to deal with and still maintain a solid 60fps frame rate.
Granted, even if Apple could do all of this smoothly in software, you'd much rather have fixed function hardware do this stuff as it would be more power efficient.
Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on up to two external displays, at millions of colors
"Dual display and video mirroring" is pretty clear-cut IMO, despite the "up to" qualifiers.It seems we still do not have a clear answer on external monitor resolutions. Here is what the website says:
Too many "up to" qualifiers to know the specifics. Also, do they mean display mirroring? So you could see the same image on the retina and an external monitor? That means the HD4000 wouldn't have to compute both monitors, it would simply output two signals. I'm wondering if the 13" will do the retina display along with a 2560x1600 screen without mirroring. From the specs, a HD4000 will not do that.
Just because the 15" rMBP carries a $400 'premium' over the regular 15" doesn't mean that this will as well. And who's to say that they keep the regular 13" around anyway? The rMBPs are the MacBook Pro, and then you have the lower cost, lower spec MacBook Airs. But I suppose we'll know for sure in a few days.
Or not.
Well, now we know the extent of Apple's greed. If you factor the 256GB SSD, it means the rMBP 13" carries almost $600 premium over the last generation. Looks like those MacBook Pros ain't going fast enough.
Too many "up to" qualifiers to know the specifics. Also, do they mean display mirroring? So you could see the same image on the retina and an external monitor? That means the HD4000 wouldn't have to compute both monitors, it would simply output two signals. I'm wondering if the 13" will do the retina display along with a 2560x1600 screen without mirroring. From the specs, a HD4000 will not do that.
If eDP (from CPU port) is used, eDP supports 1920 x 1200 at 60Hz, and two external displays using 2560 x 1600 at 60Hz.
Ouch yeah. I was really looking forward to this 13" rMBP but the crazy high price for a puny 128GB drive and no proper GPU has totally put me off the purchase. Likely wait to see what Apple does with it's Air lineup for Haswell next year but, golly that's a long time to wait and my current Penryn 13" sure isn't getting any younger :/
I'm sure the 13" will do the Retina Display along with at least 1 more display at 2560 x 1600 just fine. Really, you are getting paranoid.
According to Intel's own information:
Paranoid? I just find it interesting to see what they do and how they solve the problem.
The actual problem is... they haven't "solved" anything. The rMBP 15" still has its own shares of software problems that I'd seriously hound Apple for if I had the time. (their headquarter is really just 1 hour away from where I live)
But either way, I think you either expect too much from Apple, or you don't really know what to expect. I think the rMBP 13" will be fine performance-wise. It's only when you try to push the extremes that we have a problem, but... I don't think it's realistic to expect anyone shelling out $1700 for a 13" high resolution notebook display only to plug it into 2 external monitors...
Hmmm, I think we are talking about two different things. I'm only curious as to if they can support the retina display + two 2560x1600 displays via DP on an HD4000 even though Intel's Hd4000 spec tells a different story. No need to read into it further than that. It is a hardware limitation, so if they somehow manage to make it happen, then they "solved" the problem of moving to a 1600p display while still offering 1600p external connectivity without moving to a discrete GPU.
I'm not expecting anything from them, I'm just curious to see what they end up doing.
So I guess Apple did custom order the Intel HD 4000 GPU in the rMBP 13" after all.
Confirm one thing for me, will you? Does it say Intel HD 4000 768MB in "About This Mac"?
So I guess Apple did custom order the Intel HD 4000 GPU in the rMBP 13" after all.
Confirm one thing for me, will you? Does it say Intel HD 4000 768MB in "About This Mac"?
The 13" air has 80-90% of the cpu/gpu performance of this machine and as high of a resolution as you'd need without retina x2 scaling. 128GB, 8GB RAM and $400 cheaper. All of the extra cost is to have a few ports or ultra res and IPS. Not worth it for most people, I guess that's why it it is a MB Pro.
Yeah, so just like I thought, they actually modified the Intel HD 4000 slightly. Just like they overclocked the GT 650M in the 15" rMBP.
The 13" air has 80-90% of the cpu/gpu performance of this machine and as high of a resolution as you'd need without retina x2 scaling. 128GB, 8GB RAM and $400 cheaper. All of the extra cost is to have a few ports or ultra res and IPS. Not worth it for most people, I guess that's why it it is a MB Pro.
that's cool, and whack at the same time. i force integrated in 10.8.2, and it doesn't output to 1 x 2560x1440. i turn on discrete 650m, and i can drive 2 x 2560x1440 + the rmbp's 2880x1800. whack.
The did it with the first MacBook Air. A custom chip from intel, an older Core 2 Duo on their newer process. The newer process chips weren't ready for release when Apple wanted them, so they got intel to custom fab some cpus for them.