Instructions per cycle - Gary explains 

Gary Explains has become one of my favorite portions of AA. Lots of stuff to learn.

Your videos are great, please create your own channel. No disrespect to AA.

i was waiting for this video since a long time thanks gary👍👍

Most informative set of vids on internet...

These are my favorite AA vids

Gary, why don't you make your own channel called Gary explains? you'll have more freedom per video and you'll be able to talk about more than just android related subjects. would be fun, but these video's probably take ages to make and prepare so I understand if you don't really have time.

what an explanation , how come i miss this so long .. clear explanation .

Didn't like this guy very much when he showed up. But now, he's my favorite guy around here, and those tech videos are really helpful as I am studying IT. Thanks Gary, really great videos.

I was literally self researching this yesterday. Thanks for making a video to help clarify any things I didnt quite understand

you explained it better than my course teacher.Huge thanks for the written companion

this video took me back to the assembly lessons on 8086 processors :) thanks Gary

This was very informative and well made. Definitely learnt a lot through this. Does boggle my mind though how complex the design of cpus are. Like, when I'm building a pc, I'm picking which option I want out of a handful of cpus and considering different factors to decide which is best for my workload. But the cpu designers had to think of all this low level architecture stuff, chose what they thought was best and then I just have to trust them, and buy whatever they sell :D

Gary, you said out-of order circuitry (engine) always needs to be turned on but e.g. a processor has two clusters 4 'A53' and 4 'A73' or 'A72' and it does not incorporate simulatenous HMP (hetrogenous multiprocessing). If I am using a light application that only uses A53 cluster and it's so light that it never uses A73 or A72 cluster. will the out-of-order circuitry (engine) will still be on and consuming power? if yes, then why, because it should not do so as bigger cluster is inactive or is it- it is not inactive and just sleeping i.e., working with lower frequency?

Great and informative as usual Gary! Just wondering, do clock speeds have any direct correlation with power consumption? Could this explain how Apple manages to pull off good battery life with smaller battery capacities?

What i thought is, chips with more ILP are used in flagship phones, where the chips with higher clock speed is used in mid-range smartphones (as they cost less). Hence, both philosophies will be continued...

I remember buying my first PC with a monster CPU Citrix 486 at 80Mhz.

This completely changed my view on processors Thanks Gary

These videos are really good for me, helps me remember the topics i did in the past year of my computer science degree :)

Thankyou for the nice explanation

You Sir, are awesome.

Great video! Learned a lot from this.

Dude, you are the bomb! Best explanation ever, thanks.

very informative. learned exactly what i was looking for thanks

Very nice video.

Thanks Gary! Great information, great video. Thanks again for your efforts.

Is the naming of a cortex-a53 on the same level as a ryzen 3800x? Or is cortex-a53 an umbrella term that many cpus come under?

Jeeez you are way better than my teachers xD

The "parallelism" for Arm CPU's is called Dual Issue.

thanks, I got a lot of info from this. Best tutorial ever !!

Excellent video!

Nice explanation!

great video! Thanks for posting this.

good job Gary

That's really a interesting topic... 👍👍👍

However I like to ask why clock is used?

my brain is filled with informations.

Thank you :) Nice and clear

I really did enjoy.

does cpu frequency matter in gaming?if i have the high end gpu.

Thanks Gary! Always love your videos since birth lol :D Greetings here from Philippines!

great explainaning ! Gary what Do You think About an MTK cpu ??

thanks a lot great video

I have a galaxy j3 emerge witch uses identical chip to original galaxy j3. so 2015 j3 cpu clock is 1.19ghz and 2017 j3 is clocked at 1.4ghz you are telling me that's not as big an upgrade as it looks because it's only one aspect of performance bumped up when both have 4 a53 cores witch are in order cores is that right?

Mind blown!

Yeah we most have known the term 'IPC' (Instructions Per Clock-cycle) for a long time now, but where is the IPC of a Cpu listed. Like we know it was a big jump of IPC from 1st gen to the 2nd Gen and From 5th Gen to 6th Gen(Intel), same applies for the JUMP From FX Series to Ryzen (AMD). I mean Ryzen is claimed to have 52% better IPC than the FX series. But where are the exact figures? Why a Cpu generation not marketed by its IPC ? Why can't Intel and AMD be simply be compared via "GENERATIONAL-IPC" figures in general ? I mean they are Microprocessors afterall, nothing that of a difference , besides the Manufacturing process of Kabylake and Zen are the same (14nm) . Why can't they simply post IPC as a means of measurement of raw SINGLE-CORE performance of the CPU, in the product's Description. What is all the fuss about. We just don't wanna know how much improvements (Depicted only as a Percentage) But also wanna know the Exact 'IPC Value' of a CPU, So we can know ' How much should we Overclock our CPU's so as to be equivalent to another CPU' Why is it so difficult for INTEL AND AMD to reveal their IPC Figure and Only market over Clockspeed and Cores ? Having known the Standard IPC values of every CPU generation can make a WORLD of a difference to OUR APPROACH TOWARDS OVERCLOCKING. Believe me it's gonna be a big thing if they have a competition of IPC,Clock Speeds and Core-count. Atleast these 3 measures are required to judge a CPU's Performance (Before Buy/Testing).

exellent video. shame that the wiki article on this is so bare bones

And what about the instruction sets I can see on CPU-z?

Alot of theoratical knowledge.

Gary, where are you from?

This video should stop apple and Samsung arguments😂 (only cpu)

i just figured out theres gunna be 16 notes from samsung look at the unpacked logo on the waiting screen

Why no Intel or AMD CPU examples? -_-

predication. cannot unsee

I like my Nexus

no such thing as authorityx, wrg

i always dissable ooe in C.

if anyone is interested in this topic, look up computer architechure , risc vs cisc

to complex

Yeah, an iPhone almost does the same thing as an android phone... in 720p... when an android phone does it in 1440p. lol

hundredth hahah

first hahah

Your videos are the best in the channel, even if the phone reviews are great (for buyers) these are educative and interesting. I hope to see more and more videos like these in the future!

This is why you can't compare only Ghz and core counts. iPhone are competitive in benchmarks not because of some magical "optimization" it's because their hardware is as good as their snapdragon counterparts, just different in architecture.

competing with linus tech tips huh

"Gary explains" better... Please make a Channel called "Gary Explains"... and make excellent videos... Thanks!!! ;-)

Very good video mate :)

Is there a mode that allows you to program what the cpu should do? So instead of the cpu predicting and trying to optimize, you just figure out ahead of time what is the optimized way to process your program and tell the cpu not to do anything other that what you explicitly tell it to do.

So on the desktop/consumer side... Intel has fewer cores but higher clock speeds AND greater instructions per clock cycle, so 5.0 GHz = 50% faster than 3.7 GHz on Ryzen.

so in short, Instructions per cycle is the measurement of how powerful your CPU is...

only one critique, i didnt know depth was horizontal 8:27 , and width being vertical 8:38

So am I correct in concluding that the clock signals switch the cpu from memory locations to get the instructions?

Please correct: 'Branch Prediction', not 'Branch Predication'.

12:49 aged like fine milk with specter & Meltdown out of order is Pentersters wet dream

I learned a tonne, tnx man

Wouldn't the most important thing be IPC * MHz while keeping inside the heat envelope you want to be in while keeping stable under a 100% load for however long the processor is designed to run at 100%?

garry sir you are my favourite teacher.i've learnt so many things from you.

Hi Gary, why don't you start a new channel on Computer Architecture or on Numerical Method or Even A.I.?

Man ! what a video great stuff Mr.Gary Sims

Always something new to learn from you!

Great explanations, thank u 👍👍😊

Very informative... Good video

very well thought out video

you are amazing

wait, if out of order cpu can change the orders turns in a way that will optimize the run time. why not compile that? so that you will run it once then store the order for next runs

what does a programming language need to have in order to raise the IPC?

Again and again, I amazed on your lesson 😂

this is not Android