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keviig

macrumors 6502
Original poster
Jun 7, 2012
498
225
With dGPU's usually being more prone to issues, producing more heat, using more power (and thus lower battery life) I'd consider the 15" once it ships with iGPU only.
I think the Iris 580 would perform very well, considering how well the Iris 550 is doing. The Iris 550 is a 48 EU part while the Iris 580 is a 72 EU part.

The previous gen 15" shipped as iGPU only models.
What do people think the chances are of a 2016 15" iGPU only model?

Obviously we'll have to wait for Intel to release the appropriate CPU, but i think it would make for a great laptop. This is however not a thread for bashing on dGPU's, as they are very good for their use.
 

Freyqq

macrumors 601
Dec 13, 2004
4,038
181
Unlikely, as I doubt they'd release anything new until Kaby lake arrives.
 

leman

macrumors Core
Oct 14, 2008
19,360
19,433
Probability is basically zero at this point. Intel is discontinuing their Pro series of graphics. Which kind of makes sense from the business perspective for them, between manufacturing issues and the massive increase of efficiency of AMD and Nvidia GPUs. But on the other hand, their 'Pro' tech is going into lower-tier dual-core CPUs. The new 'stratagem' is to have fast iGPU with dual-core CPUs and slower iGPU with quad-core CPUs — the later are designed to be paired with faster dGPUs.
[doublepost=1482045542][/doublepost]
In June update they equip macs with the already released but ignored by apple for more profit, 6770hq which has the iris pro 580. (https://ark.intel.com/m/products/93...-Cache-up-to-3_50-GHz#@product/specifications)
Just wait.

A much more likely explanation is that Intel was simply not able to deliver enough of those CPUs to satisfy Apple's demand. There were reports of manufacturing issues with these Skylakes and the computers which ship them are literally a drop in the water.
 

mrex

macrumors 68040
Jul 16, 2014
3,458
1,527
europe
More likely explanation is that the dgpu, radeon 450, would look ridiculous with iris pro 580.
 

Jaekae

macrumors 6502a
Dec 4, 2012
712
441
Intel gpu drivers stink, id rather get rid of those slow buggy igpus. And have only amd or nvidia.
 

garyleecn

macrumors 6502a
Jul 25, 2014
841
142
I don't know why you think dGPU means more issue... even if there is issue, it's because of dual GPU switch, not dGPU. both iMac and Mac Pro only use dGPU, they had no issue at all..
and apple treats 15inch MacBook Pro more like a power horse on the go, so even if there is too much dual-gpu issue, that it's so unreliable, I guess they will remove the iGPU and only keep dGPU.. not the other way around.
 

KohPhiPhi

macrumors 6502a
Feb 9, 2011
763
194
I wish! I have no use of a dGPU so I would appreciate the extra battery life and lower heat of a nice iGPU.
 

Trusteft

macrumors 6502a
Nov 5, 2014
844
876
I don't know about you guys, but it always made more sense to me to have a fast CPU combined with a fast igpu. Why put a faster igpu with a lower performing 2 core cpu? I don't get it. I want to have a powerful igpu for my fast cpu so that I don't have to get a dedicated gpu.
 

Branskins

macrumors 65816
Dec 8, 2008
1,235
180
Can iris pro support 2 5K monitors at 60Hz? I thought that is why they went with the 400 series: allowable number of ports to support 5K
 

vipergts2207

Suspended
Apr 7, 2009
4,414
9,885
Columbus, OH
I don't know about you guys, but it always made more sense to me to have a fast CPU combined with a fast igpu. Why put a faster igpu with a lower performing 2 core cpu? I don't get it. I want to have a powerful igpu for my fast cpu so that I don't have to get a dedicated gpu.

Fast iGPUs are basically a compromise. Generally speaking, people who want a high-end CPU are also going to want a dGPU as well. The slow iGPU is added to the package as well so that when nothing intense is going on, there's less heat and more battery life. The fast iGPU sits in between these two, and as a whole is less versatile.
 

Wowereit

macrumors 6502a
Feb 1, 2016
963
1,483
Germany
I don't know about you guys, but it always made more sense to me to have a fast CPU combined with a fast igpu. Why put a faster igpu with a lower performing 2 core cpu? I don't get it. I want to have a powerful igpu for my fast cpu so that I don't have to get a dedicated gpu.

There are many reasons, cost might be the most important.

All core-based CPUs are made out of a few different Die-types.
- 4 Cores, GT2 GPU (mobile and desktop quadcores)
- 4 Cores, GT4e GPU (with Iris Pro graphics)
- 2 Cores, GT2 GPU (mobile and desktop dualcores)
- 2 Cores, GT3e GPU (with Iris graphics)

That's only 4 Dies for everything from 5W Core M up to 90W i7-6700k.

By throwing out Iris Pro, you can reduce it to 3 Dies while only abandoning zero-point-something percent of your lineup.

And it doesn't stop at the extra Die. You need driver support, the actual R&D for Iris Pro and so on.
 
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