New MacBook Air slower than the old one?

Apple today introduced the new laptop MacBook Air. I described the novelty in the first news. Among other things, I noticed on the processor.

Let me remind you, a new Air-based CPU Core i5, which is actually refers to the range of Core m family of Amber Lake. It seems that it’s just a overclocked version of the Core i5-8200Y.

These CPU’s were designed to work in thin and light notebooks and PCs are often doing passive cooling. But because of this they are less efficient than “full” Core.

In older models the Air the last (to date) the generation of used CPU Core family Broadwell. In particular, the older model had, if I’m not mistaken, Core i7-5650U.

In fact, against this background, the question arose: will there be a new Air faster old?

Given that the generation of Amber Lake just appeared, comparing these with the old CPU Broadwell, of course, no. But you can try to compare through intermediaries.

For example, Air used in the new processor the most similar to Core i7-7Y75. The same two cores with support for Hyper-Threading, the same 4 MB cache and similar frequency: 1,3-3,6 Core i7-7Y75 and 1.6-3.6 GHz — CPU in the new Air. Given that the base frequency of the processor under normal loads, does not work, you can take these CPU conventionally. That is, we assume that Air is installed in the new Core i7-7Y75. If the difference will be minimal.

Next, the Core i7-5650U. It’s not the most common processor, so it also needs to be “replaced”. For example, Core i7-5500U. The frequency of the first if old Air is 2.2-3.2 GHz, and the second is a 2.4-3.0 GHz, that is, the difference is also small. They have different GPU, but the us performance in games and 3D benches are not interested.

So I found a direct comparison of Core i7-7Y75 and Core i7-5500U, and our Ukrainian colleagues Here are the results of the tests, but I removed the synthetics. To start — sign parameters of the tested laptops so that you are focused.

Now tests.

Separately, I note the result in photoshop. It is very strange. Perhaps the loss of the Core i5-7200U due to the fact that the laptop with this CPU was only 4 GB of RAM, while the rest is 8 GB. In General you can see that the Core i7-7Y75 merges Core i7-5500U is about 15-35%.

There is now such tests.

And now, perhaps, more useful tests directly on the Mac. Let me remind you, 12-inch MacBook based on the Intel Core m last generation (Kaby Lake-Y). In particular, the Junior model features a Core m3-7Y32, only overclocked to 1.2-3.0 GHz. This, of course, less than the new Air, but to map at least in General, we can. And based on what tests.

So what are we to do? Again, the better, of course, in a forehead to compare old and new directly Air under macOS specific apps, not the benches. But while it appears that in some tasks the new model could give the top-end version of the old Air! I really hope that in reality it is not so, but, if you really wanted a brand new MacBook Air, but the performance for you is not in last place, wait for direct comparisons. However already now it is possible to assert with confidence that the difference in performance with the MacBook Pro 13 even without Tabara will be very large, let alone the other versions and can not speak.

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