New retina MacBook Pro GPU

[bill-p]

1. The tdp of ivy bridge + 650m is 45 + 45 = 90w, and the whole thing is very hot and loudy under the proper load already. The tdp of haswell + 770m is 47 + 75 = 122w. Do you know how to handle those extra 32w, genius? Why don't you work at Apple already, if you do? I guess we both know the answer.
2. So why are you whining so loud and so long about Macbook Pro probably loosing its gaming gpu? Would you be more happy if it had a mobile Quadro part, which still meant you couldn't play games like you could with 750m/760m or even your fantasies' 770m?

1) Unless you are doing scientific simulations or Folding@HOME, there is almost no case where you can reach the max TDP of 90W or 122W. Also to say, while gaming, the CPU almost never reaches its maximum speed, so its TDP is far lower than the stated TDP. Same goes for the GPU. Contrary to belief, the GPU doesn't have to run at max speed all the time. There is really no need to run the GPU at max speed when it's displaying a wall, as opposed to when it has to render a person, a gun, and a whole city. Unless the game is extremely poorly optimized. The reason the rMBP 15" often runs out of power supply from the charger and starts sipping battery juice while gaming is because the screen adds an extra 10W or so of power consumption to the stack almost all the time. And that's not counting power consumption of other things like WIFI radio, RAM, SSD, etc... stuffs on the board. CPU and GPU aren't the only things inside a rMBP after all. In contrast, a cMBP with a lower res display almost never falls out of that power consumption threshold, since the display doesn't consume as much power, and there is more headroom for other stuffs. Ever wondered why Apple had to increase the battery to 95WHr just to get the same battery runtime as last gen?

2) It's not gaming. If you work with any OpenGL application or if you program any OpenGL application at all, then you would know that Intel is the absolute worst case that you want to deal with. Compatibility is beyond horrible, and performance is extremely unpredictable. Intel has NEVER gotten their OpenGL compatibility and performance in order, and this time, it doesn't look like Iris Pro would be an exception. nVidia is still the best case scenario (doesn't have to be Quadro) for OpenGL compatibility, and AMD has caught up somewhat. But Intel? Urgg... I can hardly tolerate the ensuing chaos. Gamers are losing performance, but that's not all. Professionals are losing compatibility as well. If Apple didn't want to deal with nVidia's horrible OpenCL performance, then they can go for AMD instead. It doesn't have to be Quadro.

 

[kaellar]

Also to say, while gaming, the CPU almost never reaches its maximum speed, so its TDP is far lower than the stated TDP. Same goes for the GPU

Are you really saying, that there is a scenario in which 90w tdp system could produce the same amount of heat as the one with 122w tdp, while both are running graphics-intensive videogame like Crysis 3? or doing some heavy OpenCL calculation? or whatsoever? If yes, I wouldn't even bother to discuss the rest of your comment about professional usage.

 

[bill-p]

Are you really saying, that there is a scenario in which 90w tdp system could produce the same amount of heat as the one with 122w tdp, while both are running graphics-intensive videogame like Crysis 3? or doing some heavy OpenCL calculation? or whatsoever? If yes, I wouldn't even bother to discuss the rest of your comment about professional usage.

No. I'm saying that even though a system may have a MAX TDP of 90W or 122W, it may not be able to reach that max TDP due to many reasons.

The rMBP doesn't reach 90W TDP... as a matter of fact. If you get close to that number while utilizing both the CPU and GPU, the CPU throttles, and then the GPU will throttle. Ask any rMBP owner, and they'll tell you. The upper thermal limit of a rMBP seems closer to 70W.

So Apple can fit 122W parts into an rMBP, and they'd throttle and run like 90W parts at max load due to those constraints.

You're talking about a scenario where the cooling system can disperse up to 122W. In which case, yeah, you're right. 122W is hotter than 90W.

Is that clearer now?

 

[sofianito]

How can it disperse 122W if it cannot reach 122W? Henry Lavoisier, where are you?

 

[kaellar]

No. I'm saying that even though a system may have a MAX TDP of 90W or 122W, it may not be able to reach that max TDP due to many reasons.

The rMBP doesn't reach 90W TDP... as a matter of fact. If you get close to that number while utilizing both the CPU and GPU, the CPU throttles, and then the GPU will throttle. Ask any rMBP owner, and they'll tell you. The upper thermal limit of a rMBP seems closer to 70W.

So Apple can fit 122W parts into an rMBP, and they'd throttle and run like 90W parts at max load due to those constraints.

You're talking about a scenario where the cooling system can disperse up to 122W. In which case, yeah, you're right. 122W is hotter than 90W.

Is that clearer now?

Man, you're talking about the same thing as I, but in other words. I'm saying that since rMBP barely handles 90w components, there's no way 122w components will work properly. And that's because of the reasons you're listing.

 

[GSPice]

what the

 

[timeandspace]

Hi guys its my first post here! (OH YEAH BABY!!!) so anyway, I'm looking to upgrade my current computer and I was looking into macs for video and audio production has well has some graphics design and I was thinking about a 15 inch retina MacBook Pro and I understood that it is expected to be upgraded in October, now the window of me deciding what computer to buy is very narrow and ends at about September 10-11 and a huge factor for me to decide on what computer to get is its GPU and I wanted to know if anyone has a guess on what it will be for the next generation rMBP. I also heard that people had problems with the retina display when web browsing non retina optimized content has well has running windows on it and I just wanted to now if its a huge deal.

Pre-tnx for all the helpers!

(BTW I don't have any apple store to go to since I live in a country with no apple store! I know, I cry myself to sleep has well...)

I was going to buy the 15 inch retina Macbook Pro for graphic design and photo editing but when I read this review at http://www.squidoo.com/apple-macbook-pro I realized that the 13 inch model was more portable and suited my needs better.

 

[AtlanticMac]

I was going to buy the 15 inch retina Macbook Pro for graphic design and photo editing but when I read this review at http://www.squidoo.com/apple-macbook-pro I realized that the 13 inch model was more portable and suited my needs better.

To be honest, that wasn't a very in-depth review - but unless your applications love quad-cores or dGPU action (3D rendering etc), the 13 is a great machine.

The only thing the 13 has going for it is size and price.