The Cortex-A73, a CPU that won't overheat - Gary explains 

Errata: Before anyone else mentions it, I should have said Kirin 955 not Kirin 95... and for those being really pedantic the Exynos 8890 is built on 14nm and not 16nm...

jesus christ, an ARM A7(x) series CPU with 10nm and 2.8ghz, and it can hold that! that is remarkable!

I love how your explanations keep in mind the overall audience. Even a lay man can perfectly understand what you said, along with precise explanations about the entire subject. Hats off, amazing video!

I really like Gary Explains videos. What amazes me this year about phones is the amount of mid renge phones with Qualcomm 28nm SOCs 652 and 650 from sony, samsung, xiaomi and others. It turned out that those chips perform incredibly well, they are great at utilizing energy, no overheating, when you compare performance with Snapdragon 820 chip, it is obvious 652 and 650 open apps fater, multitasking is better, battery utilisation is better. I understand some of the high end phones have QHD res displays and high performance gpu drains batter, but I've got a feeling they don't perform as quickly and optimised as mid renge phones with 650 and 652... Sony Xperia X with 28nm 652 opens up every app faster than HTC 10 and Galaxy S7 820 and battery life is the same if not better... And one more thing about 2016 chips, I really expected more from Mali-880 compared with 760.

Your videos have improved a lot Gary, all the best to you.

Nice work Gary!!. Or should I say professor Gary.. ur explanations are so detailed.. and people really need to know the kind of chipsets powering their mobile devices before purchasing any smartphone in the stores

I like these in depth videos that go deep into the technology and are very detailed. They do good explanation's and they have good slides and good evidences.

damn I don't know how I missed this video. once again Gary thanks for a great video . for a 64 year old geezer I look forward to seeing your videos!! you present it in layman's language, with a concise and natural flow in your presentation of the video. once again thanks for the great video.

Great vid Gary, keep them coming. Love the tech nature of your videos!

This is really amazing. Qualcomm should pick some of these up for their next 8-series SoC

Qualcomm said that they resolved the overheating issue on the SD810 and they probably have a different meaning on what overheating is. I honestly think this is just a bait and switch although the 820 on the S7 runs superbly even on extended gaming due to the cooling pipes perhaps.

Kirin 960 16 nm FinFET Plus ARMv8-A Cortex-A73 Cortex-A53 big.LITTLE. Not sure if Huawei have released a device based on this yet.. but i might well buy it.

ur one of the best android authority guy sir please make more videos like these🙏

Good Videos Gary keep them coming ..

So a Digital PID controller changing the CPU frequency, neat. As the nm process decreases, they can reduce the voltage; thats why the overall power goes down.

nice explanation sir keep it up

I love these technical videos

Finally Gary laying down some science.

again another great video Garry thanks.

Would love to see a Quad Core with 2+2 A73 similar to SD820 Kryo cores. Since a Quad core A73 would take around same space as Octa core A53.

What a good, well detailed video sir! More please.

This is interesting, but I was thinking. What if like you said in another video about custom cores vs ARM cores. If the instruction sets; Insets, are kept at different "lvls" or layers that way the chip, handling their insets, won't heat up as much. Not as fast. They'll compute the instruction sets faster, thus producing less heat. Also another way could be to coat, a thing layer to cool off key target areas of said 'RISC' chips. See my thinking is, there are what usually 4, so quad, cores in the common risc. Or 8. Octa. So my thinking is. Get each other core to handle the sets. Once those turn off. Get the other two opposite cores to do the work. Then reapeat. On n off, on n off. Its be much more efficient that way. Also way faster. It'd boost speed really. As for temp it should, should, cool it down. Temp is always the tricky part. An example of what I mean is here: Core 00 handles the first ser of segments of the split instructions set. Then Core 01: Stays off (cooling). Core 02?: Handles the second half of the segmented instructions set that will later be recombined with its other half, that Core 00 is handling. Then the next inset, comes along, Core 01 and Core 03 handles these sets. Then they are put together and so on. Instructing, and also designing the SoC that'll be integrated into the silicon this way will be the most important part. If its not designed correctly. It won't work, correctly.

Maybe, some day in future we will have a technology that will absorb all the heat and convert it into electric current which will be stored back in the battery!

Thank you Gary for a well explained issue in plain english.

Thanks a lot for the awesome explanation. I find your Videos very insightful and I enjoy them a lot :)

I wonder when is the end of silicon? Will 10 nm be the last process shrink?

very valuable information !!

Thanks For The Explination.

Great video. Thank you

wonderfully explained.........

this is great news..now if samsung combines this with there water-cooling system in the S7..we would get a phone truly flawless.

How about the iPhones? Like the A9. They basically have no thermal throttling.

The caption totally made me think its totally fake...But now i think its possible...

Thank god for you Gary, the rest of the staff don`t know squad about the real deal. They only care about aesthetics and camera quality.

What if the performance is the same with Samsung Mangoose architecture ?

my s7 needs that gets hot when playing a lot of games lol

Probably most pro gamer on PC or mobile know CPUs can run more efficiently and more power can be generated if CPU frequencies be fixed at a level of frequency , for example most cpu working in different workloads there is top and bottom frequency but a cpu can be more powerful at a normal frequency 2.7 ghz cpu is more stable than 5ghz cpu with same architecture I know these are so basic but I mean is most important thing is how to manage the frequencies interactive is bad ondamannd is bad too schedule is good for stability actually in interactive app lunch time is more slower than ondamannd there always must be delays to open an app ( at interactive) .

Please say us what is your video gear for your channel please

which smartphones have cortex A73.

Gary's videos are an auto like

AA's best creations in the recent time are Gary's geeky videos

Well, now simple math: If the heat output is constant (which it also should be with current processors while benchmarking under full load) and the heat dissapation is also constant but lower, it will still throttle (after a certain amount of time)! The Cortex-A73 just produces less heat while on constant load, that's all. If the phone design is bad or for example your hand covers the part heat should mostly dissapate on your phone, it will still overheat. Sorry but this has to be mentioned, the Cortex-A73 isn't a magic chip design capable of ignoring thermal conditions.

Hello gary loved you video. But what about the Cryo cores on the s820 ? they show excellent performance specially in single core result. Are they not better than A72 cores at this point of time ? where do these cryo cores fit in the list of high performance cores :-)

wait, so when it thermal throttles it lowers the cpu performance for example power usage and thus lowering the cpu cores frequencies? a normal desktop cpu does that as well, i see nothing new here just means what it always does thermal throttle leading to lowering the power consumption means the lower the power consumption the lower the heat it outputs until its back to normal and so on

Then why custom cores are developing..?

thanks

I love these videos

How the hell did you get this job? Samsung Exynos is build on 14nm, not 16nm. Apple A9 is build on both 14 and 16nm. Apple SoC also don't overheat or throttle because the heat envelop is designed for the SoC at full speed. Race to idle is also why Apple stick with 2 broad cores instead of multiple high clock narrow cores.

Great video.

Do a video on Snapdragon 835. Does the Kryo in their is A72 or A73?

DO A SAMSUNG GALAXY C5/C7 REVIEW

Why are you playing the annoying music . Why arm has license as its just a basic instruction set copycat from others. We will design our own CPUs fully integrated with onboard OS in fpga.

Amazing!!! This will be wonderful for increased sustained performance!

Im going to get one of the Huawei Tablets that use the kirin 950 2.3 GHz (4 x A72) 1.8 GHz (4 x A53). Blows the doors of an Apple Airpad.

Watching this in 2019 with phones that have heat sinks and fan addons :)

Gary, so you're saying that the CPU won't OVERheat because it will start out hot :) Seriously - a pity only HW vendors think about heat, i.e. an issue you haven't touched on with the Java clip, is the MASSIVE CPU work done on memory allocs (not gc, the alloc part is the killer) that Java libs impose IMPLICITLY in the background. This one affects CPU load and hence heat dramatically. In CPP you can find implicit allocs in STL containers, in C it's always explicit, but LOTS of Java libs do it in the background so you can't escape it. Why do I pick on allocs? Profile the amount of CPU time spent in allocs when several active apps run - you'll find that they are more major than the actual calcs the apps need. It's Java that's the greatest heat sinner out there, you have to know it extremely well to avoid its loopholes, unlike CPP, and I wish google would have done something about it.

now we need only dual core a73 for budget phones

Redmi note 3 or refurbished Galaxy note 4 or blu vivo 5 or any other phone ? same price range

Sometimes CPU-Z tells me my phone has 94 degrees celsius and that is true.

samsung please dominate on this please for the note 6 international version this is needed.

The snapdragon 650 already does that. Two a72 and 4 four a53 cores.

Will the note 6 have it cuz rumour has it that note 6 will have 6gb ram.

can Qualcomm manufacture a Soc with 8 cortex a72 cores? if yes then y don't they manufacture it? it will boost the performance by huge margin

i thought A72 and SD820 will be the peak for couple of years , but ARM proved me wrong, CPU that wont over heat im so suspicious i wouldnt beleive untill i really see it , this video explained why not overheating is good , but i really want to know how is it possiple !

android authority t shirts ...

instead of a73... you said a72 twice.. i guess @Gary

2:09 brrrring down

Its guys like Gary Sims who put the "authority" in Android Authority by publishing these lucid videos coupled with articles

seems like that 14nm from samsung is bootleg

3:10 nerds starting point, that has basic knowledge of how thermal throttling works

ok

Who else hit the transcription button accidentally and saw that it is completely different from what Gary says, probably because of his accent?

So the snapdragon 821, 830 or what ever Qualcomm decides to name it is going to be substantially better I guess... And damn I thought the 820 was already insane as is

hi

Haaaayyy!!!!!

lol

mkk

Gary sims... sims? which one? Sims 4? oh wait.... Its not funny :(

First

Loving these Gary Explains videos! Keep em coming sir Gary

I primarily use iOS but really like this guys videos, probably more so than the likes of MKBHD & Linus tech tips etc. Great channel

Thank you Gary for the awesome explanation. Can't wait to see devices with the Cortex A73 CPU architecture.

Excellent.. you always produce very useful material!

now this is a good tecnology-solution on a smartphone not curve-screen/slow-motion-cam/no-edge/heart-rate-sensor/finger-print bullshit

Next video "*Official Exclusive* ISIS Land On Mars"

very much impressed by cortex a72 .using on redmi note 3 really very cooler device

It can still overheat

you didnt explain the tech behind allowing the chip to produce constant amount of heat output.

So its like my pentium 3 using a big cpu heatsink 15 years ago and intel M processor not needing heatsink now a day.

Please make a comparison review between S7 edge and mi5

Talk about the mail g71mp8 GPU

Let the knowledge fill my brains.

did this channel buy subs? its freagin dead

a cpu with four A-73 would be good for me...

Good video Gary , Thank you ...

nice

I wanna see how many first persons are here!😛

gary a question. for devices like the shield where they do not need to worry about battery life wby do they do big.little? they could make it powerful with all big cores. i mean power draw would be more, but it would be much faster

What about thé LG G4

nice video....