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Hexley

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Original poster
Jun 10, 2009
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This is how rumors are created.... asking questions that get spun by marketing people and create a life of its own.
 

cmaier

Suspended
Jul 25, 2007
25,405
33,473
California
This is how rumors are created.... asking questions that get spun by marketing people and create a life of its own.
There will not be a chip called “M1X,” so the question is whether there will be a version of M1 that supports TDP of 35-54W, and the answer is yes.
 

Bodhitree

macrumors 68000
Apr 5, 2021
1,964
2,080
Netherlands
I certainly think that the SoC for the new iMacs and MBP 16” is going to have a higher TDP than the M1. It will have more high-performance cores and a bigger gpu, and so by definition it will use more power under load. 4x the TDP would not be a bad ballpark guess, I would think.
 
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leman

macrumors Core
Oct 14, 2008
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I don't know about the names, but I would bet that we will see a four port compact MacBook Pro (13"-14") with 25-30W sustained TDP.
 

UBS28

macrumors 68030
Oct 2, 2012
2,893
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“Better than 35w” means less than 35w.

The 16" MBP has a GPU with a TDP of 50W and a CPU with a TDP of 45W. So going from 50 + 45 = 95W TDP to only 35W is not realistic.

The M1X or M2X will have a TDP of at least 50W based on what is in the current 16" MBP.
 

leman

macrumors Core
Oct 14, 2008
19,340
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The 16" MBP has a GPU with a TDP of 50W and a CPU with a TDP of 45W. So going from 50 + 45 = 95W TDP to only 35W is not realistic.

The CPU in the 16" is actually configured for around 60 watt sustained. But the combine dTDP of CPU+GPU is just around 80 watts.

The M1X or M2X will have a TDP of at least 50W based on what is in the current 16" MBP.

Depends on what you mean by the "M1X". If that's the chip that will go into the next 16",it will probably be closer to 60-80 watts total. If you mean the chip that goes into the higher-end 13"/14", it will be 30W at most.
 

cmaier

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Jul 25, 2007
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The 16" MBP has a GPU with a TDP of 50W and a CPU with a TDP of 45W. So going from 50 + 45 = 95W TDP to only 35W is not realistic.

The M1X or M2X will have a TDP of at least 50W based on what is in the current 16" MBP.

That’s nice, but doesn’t address my point that when one says “better than 35W,” ”better” means “less than,” not “more than.”
 

crazy dave

macrumors 65816
Sep 9, 2010
1,334
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TDP has become a somewhat useless metric as different CPU makers seem to have drastically different definitions for it - especially for laptops.

Max power draw for the M1 SOC seems to be just over 30W. Doubling that for a bigger SOC wouldn’t be unreasonable. If new iMacs are released in the next few days, unsure what they’ll sport. We’ll find out soon enough!
 

Serban55

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Oct 18, 2020
2,153
4,343
Mac mini (M1, 2020)
Apple M1 chip, 16GB unified memory, 2TB SSD
Power ConsumptionThermal Output
IdleMaxIdleMax
6.8 W39 W23.2 BTU/h133 BTU/h
 

crazy dave

macrumors 65816
Sep 9, 2010
1,334
1,068
Mac mini (M1, 2020)
Apple M1 chip, 16GB unified memory, 2TB SSD
Power ConsumptionThermal Output
IdleMaxIdleMax
6.8 W39 W23.2 BTU/h133 BTU/h

I’m assuming these are wall measurements rather than cpu measurements from powermetrics? What was the load?
 

Serban55

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Oct 18, 2020
2,153
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So like leman said, expect the 14" to had around 30W sustained ...the 16" will be a different animal with maybe a bigger gpu into the SoC

crazy dave: yes to your assumption
 

gogogo2

macrumors member
Feb 28, 2021
35
11
Power Consumption for M1 mini is whole box power use, include m1 cpu, ram,ssd, so I guess M1 is less than 20w, m2 may increase 20% power consumption, 25w,
 

crazy dave

macrumors 65816
Sep 9, 2010
1,334
1,068
Power Consumption for M1 mini is whole box power use, include m1 cpu, ram,ssd, so I guess M1 is less than 20w, m2 may increase 20% power consumption, 25w,

The CPU can max out at just over 20W, but most applications do indeed push it 14-20. The SOC combined seems to max out just over 30W which is less than the sum of what it’s components can individually be driven to - makes sense.
 

jeanlain

macrumors 68020
Mar 14, 2009
2,440
939
supposedly it’s all just m1, until such time that it’s m2, at least for marketing. Of course, everything is so compartmentalized and i guess we’ll see if they’re right.
So the iPhone gets an A12, the iPad Pro an A12X or A12Z, the MacBook Air an M1 and the top-of-the line iMac... an M1*?
It doesn't make much sense marketing-wise.

*16-core edition
 

zeropoint88

macrumors newbie
Oct 24, 2018
18
10
supposedly it’s all just m1, until such time that it’s m2, at least for marketing. Of course, everything is so compartmentalized and i guess we’ll see if they’re right.
Maybe they are going to put exactly the same m1 chip in the new iMac as we see in the Mac mini. Keeping power consumption down would let them make the new iMac a lot thinner.
 

UltimateSyn

macrumors 601
Mar 3, 2008
4,865
8,930
Massachusetts
Because my sources tell me apple won’t market it that way.
Really interesting. This whole time I’ve thought without any shadow of a doubt that there would be an M1 family of chips a la the A-Series; M1X, M1Z, maybe an M1T thrown in there for s’s & g’s... But now that you’ve caused me to question it and think critically I’m realizing your sources are almost definitely right.

{Note: I know you already know what I’m about to type, I’m basically just thinking out loud here and jotting it down so others can read it} The basic distinguishing factor for an A12 vs A12X vs A12Z is.... core counts. Core counts are something that Apple doesn’t really heavily advertise in the A-Series chips, in fact they’re shy about it. In the Tech Specs page of the iPad Pro the processor is just listed as ‘A12Z Bionic chip with 64-bit architecture’ - no core counts - whereas the M1 Macs have their core counts flaunted heavily. This is how the MacBook Air config selection screen describes one of the processor variants: ’Apple M1 chip with 8‑core CPU, 8‑core GPU, and 16‑core Neural Engine’

So yeah, it wouldn’t make much sense for them to say ‘Apple M1Z chip with 12‑core CPU, 12‑core GPU, and 32‑core Neural Engine’ if those cores are effectively the same as the M1 cores... they can just say ‘Apple M1 chip with 12‑core CPU, 12‑core GPU, and 32‑core Neural Engine’ the same way Intel had dual-core and quad-core i5s. Makes good sense! Thanks for that insight from your sources.
 
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zeropoint88

macrumors newbie
Oct 24, 2018
18
10
Does thinness matter in an iMac?
If they want to make the iMac as thick as an Xdr monitor and use those drilled circles as cooling vents then I guess keeping system power down would be an input.

edit - apparently the xdr uses about 100w in full brightness hdr mode. I don’t have a good sense how much power the 5k panel in the current iMac draws (50w?) so could be scope to up the core count on the m1 chip and still fit within the thermal envelope of the xdr chasssis/cooling system
 
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