The rmbp can handle full CPU load OR full GPU load but if you load up both to the max it can throttle, mainly due to power requirements (adapter cannot supply enough power). The other reason why its not as noticeable is that apple deliberately limits boost.
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You are losing 200mhz speed right there. Apple charges extra for the cpu upgrade to run the cpu at 2.4ghz + boost speeds.
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750m is about 15% better. The only other option is 8870m. 760m is possible but consumes a lot of power and the rmbp is already near its thermal and power supply rating limits.
Again---while I agree with you on the power/full GPU/CPU load unable to maintain energy (slowly sucking battery power while plugged in). That said, it's a
slow leak. In Smoke, while Transcoding and doing some batchwork in Photoshop in the background---along with manipulation within After Effects is about as hard as I've pushed my rMBP---but that's a helluva load, even on my '09 Mac Pro----and without a stutter. While I can see my processors (CPU) hitting consistent 80-90% across the board...and know the 650 is working (with A/E)....it's definitely NOT draining my battery at an alarming rate (maybe a 1% or 2 every 5-10 minutes)....and we don't tend to push these much longer than that. So---again, my point was at WHAT time would one actually run in to this theoretical situation of taxing both the CPU/GPU simultaneously? Gaming aside, strictly talking about productivity---because I'm being incredibly honest with you. My '08 MP has gathered dust since we've picked up the two 15" rMPBs. One is the 2.7 original 16GB/768GB, the other the new 2.8 16/768---both with the larger cache size and even a few minutes of rendering time saved in the field or the studio equals money.
I'm well aware of Anand's review of the rMBP---and the charts you're providing are actually proving my case....or more possibly we're saying the same thing.
IE---In the 3d rendering Cinebench R11.5 test, the rMBP is giving nothing up to the 8 core, '08 Xeon machine and it's almost at 80% equivalency with the 2010 8 core----even @ around 60% of the performance of the incredible 2009 3ghz Xeon Octo (I own this machine)----that's saying something for a package that weighs 4 pounds and has a nice SSD built in with plenty of I/O options now with the new Thunderbolt docks
The second chart doesn't speak of the Mac---though it does represent the 650m in the Asus---which isn't quite the same as the o/c'ed and...maybe what could be 'construed' as an nVidia Apple specific card (more equivalent to the 660m).
That said---the chart you posts shows just how insignificant that difference between a stock 650m is in comparison with the GTX675mx in the custom gaming rigs----somewhere in between I'm sure lies the answer...but if you want to model 3d work, utilize After Effects or some of the Adobe Plugins with Premier and A/E---RAW manipulation and multiple layer work in Photoshop---these (now year old) rMBPs are pretty stout little machines. In 25 years of computing, I've never put so much reliance on a laptop with my workflow literally from import to export----they really do Rock!
No. Too much power (650m is already causing the battery to be used when gaming) and not enough cooling. Possibly 750m or 755m. A 760m would be possible with the 35 watt i7-4702mq.
I expect Iris Pro and 750/755m as BTO.
Is this where you were referring to the power usage? High end gaming? If so, I don't really do any (I've played Diablo III for about 10 minutes since purchase), so possibly this is why I've not noticed this anomaly.
I think you're pretty close though as far as options....that said, I'm thinking the 13" will get the Iris Pro....the 15" the 5000/750m (again, possibly Apple-ized and O'C'ed or tricked out closer to the 760 without the energy loss but WITH the performance benefits---again, as we saw them do with the 650m). This would do wonders for the 13"....and keep in mind, the Iris Pro on die with the Haswell chip is almost in price parity with the separate Ivy Bridge/4000 + 650m. It's an expensive part...that I'm sure Intel will supply Apple with at a reasonable discount...but probably not significant. After all, it's their new flagship iGPU and they seem pretty proud of it
So...it appears after actually reading/researching you have reached the same conclusion as other members months ago...
The 760+ won't fit. It's at best a 755M, most likely a 750M.
I'll reiterate what I said in my original post. 1cm sq is a HUGE area. If you didn't understand that meant a physical as well as thermal limit, then...
But Haswell has helped with thermals---and the 650m was essentially overclocked in the past revision. 1cm^ isn't huge---not with what Apple is doing with their logic boards and batteries these days. There's plenty of room for them to manipulate the layout to allow for a square centimeter---especially when it comes to their flagship, mobile display device!
calm down guys..is simple now with the new imacs in mind, its clear we will see 2 configuration of 15" MBP: 1 for iris pro and the other for dGPU
I don't believe that for a minute. Again--maybe the I/P in the 13"---too expensive to have both the I/P and a dGPU in the 15"
