Intel Launches Whiskey Lake-U and Amber Lake-Y: New MacBook CPUs?

Earlier this year Intel announced that it would be introducing two new families to its low power notebook range: Whiskey Lake for new 15W (U-Series) processors, and Amber Lake for new sub-5W (Y-Series) processors. These new parts are at the core the same as the current 8th generation Kaby Lake Refresh parts, but they have been equipped with newer chipsets. With this announcement, we are expecting to see a large number of OEMs with new devices on display at the IFA trade show this week in Berlin.

Making a Name
These new processors will fall under Intel’s 8th Generation branding, which already contains its Kaby Lake Refresh 15W processors, both with and without extra embedded DRAM for its graphics. The reasoning for retaining the branding, to paraphrase Intel, is that they consider the new parts to be on a similar field as those out in the market, but with minor updates.

The updates in this case really are relatively minor from the feature set: the new parts will offer native USB 3.1 support without the need for an extra controller, and also include an integrated 802.11ac 160 MHz WiFi MAC, meaning that OEMs only need to include a Companion RF (CRF) module in order to activate it. If this sounds similar to the changes in the latest desktop chipsets, moving from Z270/Z370 to B360 and the like, it is because it is basically the same. Intel also states that these new parts also have support for Thunderbolt, even to the extent of including it in the chipset block diagram, despite not actually being part of the chipset (you still need a TB controller).

From the two families, there are three SKUs apiece. Some of these may look familiar – the Core i5-8265U for example is a mirror to the Core i5-8269U which already exists under the Kaby Lake Refresh brand, albeit with eDRAM and better graphics, but not as many features native to the integrated chipset. Intel told us that for these parts, Gen 9 graphics is being used.

Each set of three is divided into i7/i5/i3 (or m3 for the Y series), however the way the chips change is different. In the U-series, the i3-8145U is a dual core and has the highest base clock, while the i7-8565U is a quad-core and has the highest turbo frequency. Moving from i7 to i5 to i3 also reduces the L3 cache size, and we get into this interesting middle ground where the i3-8145U has more L3 cache per core than the i5-8265U. All three chips support DDR4-2400 and LPDDR3-2133, though no LPDDR4.

For the Y series, the base frequency decreases from 1.5 GHz on the i7-8500Y down to 1.1 GHz on the m3-8100Y, and turbo frequencies also decrease. All three parts are dual core processors, although Intel does not state if these are native dual core parts or quad-cores with two cores disabled. The TDP / PL1 of these chips is 5W, which is actually a slight rise from the previous generation Y series processors that were at 4.5W. These CPUs also only support LPDDR3-1866 memory natively. It is also worth noting that the naming scheme for the Y-series has changed yet again: in the last generation, the m3 was given the name 7Y10c – but now the naming has come in line with the other processors.

Leave a Reply

Your email address will not be published. Required fields are marked *