Just compare to the 7870m (725/1000) / m270 (725/1125) / m275 (925/1125).
http://www.notebookcheck.net/Lenovo-Y40-59423035-Notebook-Review.124638.0.html
Lenovo y40 (the clocks are not stock but 925/1000 - much higher on the core but lower on the GDDR5 - Gddr5 clocks shouldn't have too much of an effect considering how much bandwidth is still available). Its also using a U level CPU
Compare (3dmark 11 graphics/firestrike graphics) using NBC
M275 - (3261/1885)
750m (apple) - (2692/1872)
860m - (4920/3950)
The whole point of this is that if apple wanted cape verde in the 15" MBP they could have had cape verde in 2012. Apple putting a 2012 gpu in its 2015 MBP and charging $2500 is nothing but a fail.
Tonga of any type uses too much power. Unless they increase the power brick size you are limited to 85W system power (which a sustained CPU and GPU load on the 750m already butted up against). My guess is that cape verde will not be able to run full clocks under hugely demanding compute, though apple may get the best binned dies. The 860m would have been a little much as well. My guess is that if they used maxwell they would have to go with the 850m with GDDR5 (downclocked 860m) to hit the required power numbers.
As far as compute. 860m is pretty much a monster and competes well with bonaire. Cape verde is weaker in nearly all tests. look at the toms hardware 750 ti compute benchmarks or benchmarks elsewhere.
I also guess that they said that the 375M is not exactly the same chip as the reference you re eventualy using, namely that it has better efficency.;;;
So your guess is just based on partial information, Unless of course that you can tell us to what extent the 375M could be lacking in respect of what you think woudl be the desired values...
First line.....
I know you are trying to be funny but atleast use /sarc tags else it is a really dumb comment.
Yes it does. I have a 7730m notebook with dual graphics but its a POS with OEM locked drivers.
I also guess that they said that the 375M is not exactly the same chip as the reference you re eventualy using, namely that it has better efficency.;;;
So your guess is just based on partial information, Unless of course that you can tell us to what extent the 375M could be lacking in respect of what you think woudl be the desired values...
First line.....
Its not efficiency. Its that the power adapter is 85W and that is for a 45W CPU and a 15.6" 1800p display. 45W CPU (could be more for short term turbo) + 15W for the rest of the system = 25-30W for the GPU. The desktop 7770 uses around 60-70W.
The 750m was already pushing the limit of the power brick (apple downclocked its 750m too) with some users reporting power throttling (look up macrumours or similar sites). If the m375 uses more power under typical use it will have to reduce clocks.
The mobile 300 series has already been confirmed to be rebrands so the phrase "new" is just marketing.
again... Cape verde doesn't support dual graphics.
Dual Graphics, is a crossfire mode for dGPU and IGP FYI
again... Cape verde doesn't support dual graphics.
Dual Graphics, is a crossfire mode for dGPU and IGP FYI
Then what is hybrid graphics?
You mean Hybrid crossfire? It is no more.
You could mix and match different graphics cards.
http://support.amd.com/en-us/search/faq/230
waffleironhead
Diamond Member
- Aug 10, 2005
- 7,061
- 569
- 136
Is it cape verde not supporting dual graphics, or no apus that work with cape verde?again... Cape verde doesn't support dual graphics.
Dual Graphics, is a crossfire mode for dGPU and IGP FYI
A little OT but - I'm excited to see what dual graphics GPU's could do with the Zen APU's and 400 series GPU's
If they are planning to release a 300W massive APU, I can only imagine the power draw on a system where you ran dual graphics with a GPU as well
ViRGE
Elite Member, Moderator Emeritus
- Oct 9, 1999
- 31,516
- 167
- 106
The same way all current GPUs do: teaming. You use 2 DisplayPorts to drive a tiled monitor.
Good point, I thought that due to all the noise about improved scalers on tonga that amd would be using that tech here. Was the 5k iMac also tiled?
Apple would be way better off with GTX 960M (~60W) than R9 M370X (~55W).
GTX 960M destroy M370X in games, it also is much much better in compute.
https://compubench.com/compare.jsp?...MD+Radeon+R9+M370X&D2=NVIDIA+GeForce+GTX+960M
But of course, Apple would rather buy the cheapest GPU from their partners no matter if its rebadge garbage if it got a shiny new "M300" name.
Mac owners will never know they use the worst hardware possible in their machines. Greed and profit control the industry.
GTX 960M destroy M370X in games, it also is much much better in compute.
https://compubench.com/compare.jsp?...MD+Radeon+R9+M370X&D2=NVIDIA+GeForce+GTX+960M
But of course, Apple would rather buy the cheapest GPU from their partners no matter if its rebadge garbage if it got a shiny new "M300" name.
Mac owners will never know they use the worst hardware possible in their machines. Greed and profit control the industry.
Have some reliable data that point the 375M as being 55W? Because someone posted this earlier :
A 85W brick, a 45W CPU coupled with an allegedly 55W GPU, we wont talk of the rest of system + screen, all thoses watts seems to me inflated somewhere, at some point, but nevermind, the show must go on...
You are mixing TDP and power consumption.
HD 7770 have a TDP of 80W. It draw 60-70W during normal operation.
R9 M275 @ 925MHz have a TDP of around 60W. Yeah, Im assuming M370X @ 800MHz is down to 50-55W. Power consumption however is lower. Thats where the PSU of 85W comes to play.
Same about the CPU. TDP is 47W. Power consumption is different.
I doubt Apple designed it to work 100% without throttling if you hit it with Prime95 and Furmark that will put it at TDP levels with power draw.
Would you pick a GPU with 80% more horsepower and 1.2 support though if you had a choice?
HD 7770 have a TDP of 80W. It draw 60-70W during normal operation.
R9 M275 @ 925MHz have a TDP of around 60W. Yeah, Im assuming M370X @ 800MHz is down to 50-55W. Power consumption however is lower. Thats where the PSU of 85W comes to play.
Same about the CPU. TDP is 47W. Power consumption is different.
I doubt Apple designed it to work 100% without throttling if you hit it with Prime95 and Furmark that will put it at TDP levels with power draw.
Yep, most likely.
Would you pick a GPU with 80% more horsepower and 1.2 support though if you had a choice?
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Emm,in non synthetic image or video benchmarks the GTX750TI is not really faster though. Thats what the MBP is going to be used for though. Not rendering and not for gaming generally. That is not who they are targeting with a MBP. Its people doing imaging and video work.
The OS X version of Adobe CS moved to OpenCL first,and there are more officially supported AMD cards now than Nvidia ones.
Ultimately with support for OpenCL 2.0 mentioned before,it make sense from the perspective of Apple to go with AMD even if gaming performance is not the best,especially if the OpenCL tools are better optimised for AMD cards and AMD is willing to sell them a lower cost GPU.
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Isn't it so much easier to optimize the softwares if future Apple computer's hardware using the same brand of GPU as in their Mac Pro, iMac, and macbooks?
As I know Apple doesn't really like product fragmentation, they prefer user experience across the board.
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