Apple will precritical, have you heard about the main scandal of the week.
The new, expensive 15-inch MacBook Pro with Core i9 was slower than last year’s model on Core i7. More expensive half, but slower!
How could this happen? Because Intel Core i9 — a true six-core monster, which is any problem in the teeth. It’s much cooler than i7 for all tests.
Alas, Apple deliberately made this situation. Not for the first time. The reason underlying the modern strategy of the company, and to fix anything, Apple is clearly not plan.
There is a throttle, and there is marketing. The second won
But when Apple boasted that its products are not subject to the throttle. The above is taken from the presentation of the iPhone 6.
To understand what happened with the MacBook Pro and why it is reflected in all products of the “Yabloko”, separate the problem from the cause.
The problem is the throttle, But it itself is not to blame.
If you have little time, and you broke read, here’s a simple conclusion. Blame greed, which has lost all understanding for whom they do their most expensive line of products.
If you want to probe deeper, respect. Go.
What is the “throttle”?
The throttle is a restriction of CPU performance for emergency lowering its temperature. He somehow could be used in 99% of all modern devices: computers, smartphones and tablets. There he and iPhone.
When you are doing something serious on a computer or smartphone, its processor begins to give more and more resources until it reaches 100%-a large load.
This level of loading greatly increases the temperature of the chip. As high temperatures are dangerous: they reduce the service life, can cause immediate breakage or damage to neighboring components of the computer.
For CPU cooling, use the three methods, including simultaneously.
First, the heat around him blown active system cooling — fans-coolers, high speed blow air from the outside through the components of the computer. Thus, the temperature of the chip is reduced — just like yours, when sitting in front of the air conditioner in the 32-degree heat.
Second, good laptops are designed so that the heating of internal components “extinguished” dissipation on the maximum area that will be cooled faster by itself. This is achieved through thoughtful arrangement of the circuit Board, using heat-conductive internal structures and materials. For example, metal is very well absorbs and distributes heat, but the fashion in Windows-laptops “carbon” makes it much worse.
Finally, the third method is the throttle. Every processor from the factory laid a manual action in the event of excessive heat and the risk of reaching so-called “limiting temperature”, after which there is a critical failure and/or fatal damage. The bulk of the instructions is to skip cycles, that is, in slowing down the execution of instructions.
In simple terms, the throttle causes the CPU to run slower to cool below the theoretically dangerous levels. Usually this mark is 100 degrees Celsius. The degree of the throttle and its impact on the operation of the processor is often a multi-step closer to a dangerous temperature, the stronger slowing down of the computation.
These three cooling methods I mention in order of their effectiveness.
The coolers in a PC case is to minimize the passive dissipation of heat generated by the processor. Passive diffusion should be possible to delay the moment of switching on of the throttle. And the throttle should not give the CPU to heat up to dangerous temperatures.
These three ways of cooling, of course, doesn’t work “from the bulldozer”.
As laptop manufacturers are designing cooling
It is clear that in an ideal world throttle should not be. But in reality, almost all processors “throttled”.
To a lesser extent this happens in desktops: the ability to install a variety of systems of active cooling, large volumes of the hull and the air inside allows the processors to operate at maximum power, not heat up to dangerous temperatures.
Most of all “trottles” processors in smartphones: the lack of active cooling, a closed housing, and the race for specifications force manufacturers of processors and the developers of operating systems to come up with incredibly complex mechanisms to limit the performance. Additionally, the added low-power batteries, whose capacity is not able long to maintain the maximum power of the mobile chips.
Into a full-fledged computer case fans to overclock the processor even manage to put a cooling system with liquid nitrogen. But there is a free space.
With laptops the situation is very different. If the efficiency of coolers and the dissipation of the processor is balanced, and the throttle will occur only minimally.
Conversely, if under a powerful fan has no place, and passive cooling can not cope, then the laptop will run significantly slower under high load.
This “balance” is called TDP — requirements for the heat sink in watts (W here means the output thermal energy), and is set by the manufacturer of the chip. That is, the higher the TDP the more heat the chip. The TDP should be laid in the design of the cooling system of the laptop, otherwise the trouble.
The value of TDP calculated heat dissipation during operation of the processor on nominal frequency — the one that is listed first in the specifications. For example, the MacBook Air CPU TDP is 15 watts, and the MacBook Pro 2018 — 35/45 watts.
And everything would be fine and understandable. But Intel has a feature called Turbo Boost.
This is actually overclocking the chip in real time up to 1.8 times. It is activated automatically when the CPU load approaches the maximum.
Overclocking does not go unnoticed: increases not only power consumption but heat dissipation. To extinguish it before activating serious throttle, it is logical to pre-design the cooling of the laptop with the expectation of Turbo Boost.
It was made for the first generation of ultra-thin MacBook Pro with Touch Bar. The old layout of the case “enough” and for the next generation (model 2017: 13 and 15 inches). But for the new Core i9 — all the bolts.
Physics will not be canceled. To put a good active cooling system in the laptop is required not only engineering tricks, but the banal space for more powerful coolers, as well as effective methods of purging the body. This is the biggest problem.
Powerful MacBook, poor cooling. Now you know what happened next
Let’s look at what it looks like MacBook Pro 2018. Question. Where is there to deliver more powerful cooler?
The answer is simple: a body — anywhere.
Despite setting a powerful 6-core Intel Core i9, the possibility of the cooling system of the MacBook Pro remained at the level of two years ago. Though TDP is not increased at the nominal frequency, but when overclocking, whoosh.
When his users turn on Turbo Boost, the laptop almost instantly goes to the throttle. Very hard. Up to reduce the frequency to 3 and a half times to a pathetic 800 megahertz!
Two generations in a row, Apple reduced MacBook Pro with all sorts of tricks. And now she faced a harsh reality: in order to continue to doing laptops, “Pro”, this principle will have to sacrifice.
New MacBook Pro just can’t pull the Intel Core i9 under load. Youtuber showed that the laptop with this configuration, it is necessary to put in the freezer to disclose potential or he would not be faster than last year’s model!
This should not be in the computer with the label “Pro”. The failure is obvious.
Here we are approaching the fact that the current design of the MacBook Pro is not viable for the future flow, because the casing is too thin.
Why is the case of the MacBook Pro so thin? Yes because Apple are obsessed with loot and mass market. To sell to normal people’s thinnest smartphone easier than thick but powerful. The laptop… well, you get the same thing.
Once this principle is totally inappropriate when it comes to computers, whose chip is in power. You can’t have it all: an ultra CPU, ultra-slim, ultradolce time. From this set you can choose only two items at a time.
But Apple gave up and decided to bail on the consequences. Cool specifications, benchmarks, high — get, expensive Pro, now leave me alone and go to the store.
The result you know.
Apple wanted the MacBook powerful, and more sales. Third time not rolling
In General, what MacBook Pro? It’s supposedly a computer for professionals: high load, significant challenges and strict requirements.
Once the name “Pro” in the names of MacBook really meant: it is a serious computer professionals. A dozen ports, powerful strong body, good display, decent battery life and productive iron — here is a portrait of MacBook Pro 2010-ies.
But then things began to change.
Initially we saw a bit of “raw,” but ground-breaking MacBook with Retina display. In addition to the steep screen, Apple made the casing is noticeably thinner and lighter, but at the same time removed the ports and reduce performance.
Negodaeva changes then decided to stay on the previous generation Pro. However, three years later, MacBook Pro more or less returned to its “powerful” beginnings in the 2015 model, and non-Retina displays, many tired. Rumors that Cupertino will soon release a brand new model, improving its literally everything.
Professionals had expected the company adds promising the USB-C port, will fix the problem with oleophobic coating and improves performance. Instead came the laptop, which shocked many.
MacBook Pro 2016, was the way nobody had expected to see. It is thinner, lighter, less — but not much more powerful, and had a problematic keyboard, lost almost all the ports for USB-C, and the upper row F-keys, whose place was now occupied by the touchpad is Touch Bar.
No one wanted it. I still remember the confusion of millions and the abuse of the media in unison with the bloggers after the announcement.
It was two years ago. Looking back at the previous model, to date, Apple had to finalize the disadvantages of ultra-thin “proshek”, which was a lot. The main complaint, in addition to the keyboard, was and remained relatively low productivity.
And a week ago, without warning, he released MacBook Pro 2018. The performance of the wild, the last generation is almost two times slower. The keyboard corrected. RAM added. Heard all the wishes!
Alas, marketing prevented.
Do not blame excessive requests of users, of processing heavy 4K HDR videos on two monitors. Blame the marketing. Damn marketing admitted that the desire of key buyers of the MacBook Pro just cannot be performed.
I have said that oppose the thinning of iPhones. But with laptops, as it turned out, the trouble no less.
So, guys, I love Pro, but even stressful, if in 2019 it will become thicker. I hope you do too, it’s for the best.
Apple, leave the marketing as far as possible from their most important laptops. Okay?
And let it remain slim 12-inch MacBook.