ARM Launches Cortex-A72 mobile processor

spp85

2015-02-04 11:51

ARM is closing the performance gap with Intel quickly and efficiently than we all thought, which is after all a good thing. I am really amazed with such high performance that too with traditional power efficiency of ARM processors. All the best ARM.

#5007507

makaveli316

2015-02-04 13:35

They could launch a new processor every year if they want, but i still can´t tell the difference in performance between an S3 and an S5 for example.

#5007540

vbetts

Moderator

2015-02-04 14:29

They could launch a new processor every year if they want, but i still can´t tell the difference in performance between an S3 and an S5 for example.

Small apps you really won't notice a difference for a few reasons. 1. If it's a game it's because of the resolution difference, there needs to be a way to test the two devices with the same resolution. 2. Some apps really don't require a whole lot. What you will notice the difference in, are benchmarking apps, apps that requires higher extensions(Such as Dolphin and Open GLES 3), or productivity apps such as Office or Google Drive apps. You would notice it better too if there were better apps to monitor usage on Android like there are on Windows built in.

#5007544

makaveli316

2015-02-04 14:35

Small apps you really won't notice a difference for a few reasons. 1. If it's a game it's because of the resolution difference, there needs to be a way to test the two devices with the same resolution. 2. Some apps really don't require a whole lot. What you will notice the difference in, are benchmarking apps, apps that requires higher extensions(Such as Dolphin and Open GLES 3), or productivity apps such as Office or Google Drive apps. You would notice it better too if there were better apps to monitor usage on Android like there are on Windows built in.

True, but for the average user, which probably means 90%, it´s just the same thing with a bigger screen.

#5007586

Lane

2015-02-04 15:25

ARM is closing the performance gap with Intel quickly and efficiently than we all thought, which is after all a good thing. I am really amazed with such high performance that too with traditional power efficiency of ARM processors. All the best ARM.

Note one thing, no one of thoses slides, informations about the A72 speak about performance gain over previous architecture, but power efficiency at some arbitrary power level. Marketing slides are sometimes ( offtly ) a bit missleading

#5007587

vbetts

Moderator

2015-02-04 15:29

True, but for the average user, which probably means 90%, it´s just the same thing with a bigger screen.

Not in the enterprise field. We had to upgrade our Ipad and Ipad 2's because both the Google apps and Microsoft Office apps did not run correctly on the devices, as well as a few of our devices did not support them.

#5007641

schmidtbag

2015-02-04 16:46

As long as new releases of ARM processors don't consume more power than their predecessors, I say keep up the work. Otherwise - STOP!!! When the Cortex A15 was released, sure, it was a nice model, but its power efficiency was just too high for phones. It was ok for HTPCs and tablets, but the reason ARM made so much success was because of phones. I don't need a phone more powerful than my office computer. I need a phone with a reliable battery and performance good enough to get me through my day.

#5007684

leefuji

2015-02-04 18:05

" the Cortex-A72 processor will deliver CPU performance that is 50X greater than the leading smartphones from just five years ago. " Is the X factor based on the CPU's clock speed? I had a Motorola Droid X (2010 Model) with a Cortex-A8 @ 1Ghz. How would the (X-Greater) be calculated here?

#5007703

vbetts

Moderator

2015-02-04 18:43

" the Cortex-A72 processor will deliver CPU performance that is 50X greater than the leading smartphones from just five years ago. " Is the X factor based on the CPU's clock speed? I had a Motorola Droid X (2010 Model) with a Cortex-A8 @ 1Ghz. How would the (X-Greater) be calculated here?

Many factors. Number of cores, efficiency of cores, cache sizes, any new extensions. Really you would just have to look at the die of the SoC to know.

As long as new releases of ARM processors don't consume more power than their predecessors, I say keep up the work. Otherwise - STOP!!! When the Cortex A15 was released, sure, it was a nice model, but its power efficiency was just too high for phones. It was ok for HTPCs and tablets, but the reason ARM made so much success was because of phones. I don't need a phone more powerful than my office computer. I need a phone with a reliable battery and performance good enough to get me through my day.

The uses for ARM have increased because of the power increase of ARM systems. I mean you even have servers that are ARM based now. For power draw, the A15 was never meant to be just an SoC for phones. It was made for mobile devices, and while the final power draw was higher than compared to the A9, A15 did feature more power saving techniques to where the increase in highest power draw didn't make any difference. Also look at Nvidia, they aren't in the mobile phone world anymore since their ARM SoC's use too much power for one.

#5007709

schmidtbag

2015-02-04 18:53

*double post*

#5007710

leefuji

2015-02-04 18:55

Not necessarily. The 50X improvement likely involves all of the following: * GPU performance improvements (I get the impression part of their claims involves GPU, in a similar way AMD advertises APUs) * More instruction sets * Possibly 64 bit * Larger caches * Different pipeline structure * Smaller fabrication node * And the obvious multitude of cores and higher frequency I'm not saying it has all of these things, they're just some factors that can improve the performance of a processor. As an example: back in the P4 days, one of the reasons AMD was faster at a lower frequency is because they had a bi-directional FSB. It's stuff like that where you can have hardware that's worse in every way than the competitors yet it still has better performance.

Got it. cool 🙂

#5007776

kendoka15

2015-02-04 21:07

They could launch a new processor every year if they want, but i still can´t tell the difference in performance between an S3 and an S5 for example.

Do you own both? I've seen a massive difference just between an S3 and an S4 (though comparing Samsung phones in everyday performance isn't the best benchmark as the Touchwiz UI has always been a laggy mess)

#5007795

asturur

2015-02-04 21:34

Let s not compare phones please. Here at guru3d wi do not compare processors for how windows runs on them. Because you now, phone is a soc, but still touchscreen and flash memory and ram is paried by the vendor. Also.. for s3 and s4 maybe he was referring to the snapdragon models? With this power efficency maybe we will see soon 512 cores affordable servers 🙂 with all this virtualization fashion they could be a nice deal.