What could I use the dGPU for if I don't game or edit videos?

GP20

macrumors member
Original poster
Oct 3, 2012
69
0
I returned my previous rMBP because of a couple of issues. I'm buying another rMBP 15 and I'm having a hard time deciding if I need the dGPU.

I never game, and I never edit videos or 3D animations. I use a lot of photoshop and watch a lot of videos (downloaded, streaming from Time Capsule, and youtube, as well as MLB TV which has to use Flash) and hook up the computer to my TV everyday. When I got my last rMBP 15, I purposely ordered one without the dGPU because I didn't wanna deal with the hassles of switching between Iris Pro and the dGPU. But is there any circumstance that the dGPU is actually useful to me?

Does the dGPU make Handbrake transcoding faster?

I'm trying to convince myself to maybe get the dGPU since it'd be a free upgrade to me. But aside from it reducing the battery time and being another part that could fail one day, can I actually benefit from having a dGPU?
 

Freyqq

macrumors 601
Dec 13, 2004
4,015
169
Only NVidia can render faster using CUDA...if the program supports it.
 

magamo

macrumors 6502
Apr 6, 2009
416
5
Does the dGPU make Handbrake transcoding faster
No. The current version of Handbreak doesn't use a GPU. The beta version does for downscaling on Windows, though.

Photoshop CS6 seems to support GPU acceleration. But I don't use Photoshop very often myself, and don't know how useful it would be to you.
 

snaky69

macrumors 603
Mar 14, 2008
5,903
481
Do any programs you use have CUDA enabled? If not, there's really no point.
 

GP20

macrumors member
Original poster
Oct 3, 2012
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0
I don't think any of the programs I use uses CUDA. Even for photoshop, I'm getting by just fine without the dGPU. I've used gxCardStatus, and don't like how I have to manual switch every time I restart or every time it's hooked up to the TV.

I guess I'm really only looking for an excuse for me to justify getting the dGPU. Can a dGPU run a 4K display at 60hz?
 

chrfr

macrumors G3
Jul 11, 2009
8,305
2,594
I returned my previous rMBP because of a couple of issues. I'm buying another rMBP 15 and I'm having a hard time deciding if I need the dGPU.
I can't really offer advice as to whether or not you need the dGPU, but be aware that there is at least one configuration of the 15" rMBP that is the same price whether or not it has the dGPU, so shop carefully. You may be able to get the dGPU for "free."
 

GP20

macrumors member
Original poster
Oct 3, 2012
69
0
I can't really offer advice as to whether or not you need the dGPU, but be aware that there is at least one configuration of the 15" rMBP that is the same price whether or not it has the dGPU, so shop carefully. You may be able to get the dGPU for "free."
Yes I was aware I could get the dGPU for free.:D I'm getting exactly a 2.3Ghz / 16GB / 512GB SSD. But still deciding whether, since I still don't think I would benefit from a dGPU, it's actually a nuisance for me to have a dGPU.

Such a hard decision. I'm guess a dGPU does nada when just watching movie videos?

----------

How much faster/smoother is photoshop with the 750M?

I find it plenty fast enough with Iris Pro already. How would the 750M benefit in photoshop?
 
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mr.bee

macrumors 6502a
May 24, 2007
707
422
Brussels, belgium
I have a 2.3 ghz/16 Gb/256 with Iris pro only.

I specifically didn't took the 750 because

* shelving out another 300€ i found too much
* I want to discourage myself of playing games on it
* there's no impact on photoshop or any other program. Only when you start using 2 4k screens or so or specific 3D software, you'll see the advantage of the 750.
* the 'it's for free with a current setup' is not a good reason to take something.

that's my point of view :)
 

goMac

macrumors 604
Apr 15, 2004
6,862
911
OpenCL on the Iris Pro is faster than CUDA on the 750m...

So if the software in question supports both OpenCL and CUDA, the Iris Pro is still the better choice...
 

Robyr

macrumors regular
Feb 21, 2010
226
0
dGPU systems, historically, are bigger problem machines. A ton of failures of the nVidia / ATI notebooks, Apple included, but I never hear about an Intel based / integrated notebook dying without abuse,
 

saturnotaku

macrumors 68000
Mar 4, 2013
1,924
51
dGPU systems, historically, are bigger problem machines. A ton of failures of the nVidia / ATI notebooks, Apple included, but I never hear about an Intel based / integrated notebook dying without abuse,
Do you have a list of these "ton of failures?" The last mass problem affecting manufacturers across the board was the GeForce 8600M GT from a few years ago.
 

chrfr

macrumors G3
Jul 11, 2009
8,305
2,594
Do you have a list of these "ton of failures?" The last mass problem affecting manufacturers across the board was the GeForce 8600M GT from a few years ago.


Apple's had problems with the GT330 in the mid 2010 15" MBPs, to the point that they issued a repair extension, and the 2011 MBPs seem to have a higher than normal amount of problems with the ATI GPU in those.
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
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GVA, KUL, MEL (current), ZQN
Do you have a list of these "ton of failures?" The last mass problem affecting manufacturers across the board was the GeForce 8600M GT from a few years ago.


2010: GT330M failure (extended repair program available)
2011: Radeon 6490M, 6750M and 6770M failure (no extended repair program available yet).

My 2011 15" MBP was one of those hit by Radeongate.