Intel’s Skylake chips for mobile devices including notebooks and tablets will come in several different flavors. Skylake-H chips will offer the highest performance, but they’ll also use the most power. Skylake-U chips will be 15 watt processors aimed at ultrabooks and other devices that are designed to balance power consumption and performance.

And then there’s the Skylake-Y series, which are the lowest-power chips to be part of the Intel Core product family. There are at least four new Intel Core M chips based on Skylake-Y architecture on the way.

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Intel is expected to officially launch its Skylake chips for mobile devices at the IFA show in Berlin in September. But details have been emerging, thanks to a series of product listings for Core M Skylake-powered devices.

Now CPU World has published more detailed specs for some of the first Skylake Y chips. We don’t know much about their performance, but all of the processors feature 4MB of L3 cache, Intel HD 515 graphics with a base clock speed of 300 MHz, and a 4.5 watt TDP. They’re also all dual-core processors with support for hypethreading, which means the chips have two cores but support four processes.

  • Core M3-6Y30: 900 MHz base speed with 2.2 GHz Turbo speed and 850 MHz GPU boost speed
  • Core M5-6Y54: 1.1 GHz base speed with 2.7 GHz Turbo speed and 900 MHz GPU boost speed
  • Core M5-6Y57: 1.1 GHz base speed with 2.8 GHz Turbo speed and 900 MHz GPU boost speed
  • Core M7-6Y75: 1.2 GHz base speed with 3.1 GHz Turbo speed and 1 GHz GPU boost speed

All of the chips are said to feature support for 2 SATA 6 Gb/s ports, up to 10 lanes of PCI-Express interface, up to six USB ports, and support for DDR3L-1600 and LPDDR3-18ss memory. While they all have a thermal design power rating of 4.5 watts, Intel says they have a 3 watt “scenario design power,” which means they’ll typically use less than 4.5 watts. But they can also run at up to 7 watts for a performance boost.

Each chip supports VT-x and VT-d virtualization and AES encryption. The two fastest chips also support Intel vPro and Trusted Execution.


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8 replies on “Intel Core M Skylake details start to emerge”

  1. The relevant figure isn’t TDP, but idle power usage. This is what matters for phones, tablets, and other mobile devices.

    How does this figure for the Skylake M compare to that of a, say, Cortex A53 on a 20nm TSMC process, or whatever is comparable?

  2. Core M is so TDP limited, so the 7w TDP ceiling is appreciated. I wonder if it’s boost only, or if we can enable 7w full throttle all of the time, assuming the temps are in-line. I mention this for primarily gaming on a tablet or 2-in-1 with active cooling.

    I did a video to show gaming performance in SKYRIM with a 5Y-51 –

    CPU and GPU clocks speeds are extremely low because of the TDP limts – Temps are good.

    Used A HP Elite X2 1011 G1 with active cooling.

  3. Anything below the top line Skylake-Y (Core M7-6Y75) is going to be a bit slow even for everyday usage. I say this because the performance specs seem similar to the atom chips I use from time to time, and it chugs in Windows 8/10.

      1. Very interesting. I wonder why that is. The atom has more cores and higher clock, but still much slower. I know cores and clock don’t mean everything, stuff like L4 cache play a role, but still…

        1. It’s all about the architecture. Some of these Core M CPUs are faster than the first gen Core i5’s from yesteryear. 4.5w vs. 95w – Pretty impressive.

        2. IPC gains, the way cache works, how good multythreading scheduling they have, the hyperthreading which party replaces the 2 missing cores etc. Its not just about frequency and core number. These aroms are way off compared to what intel has to ffer today. Also ther is the law of diminishing returns which means that the more power you put the lesser the gain will be. Still an architecture that scales from 100 watt tdp to 4.5 watt is impressive

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