Linux update indicates that Ryzen 4000 processors will support LPDDR4X-4266 memory

Robert Sole August 30, 2019

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Linux August 28 update, refers to AMD Renoir (Ryzen 4000) processors, which would support LPDDR4X-4266 memory

AMD Ryzen 3000 processors They went on the market last July 7 and are based on Zen2 @ 7nm. These processors have had quite a few problems with RAM, especially on pre-X570 chipset boards. Despite this, the thing does not stop and in the last Linux driver patch of August 28, mention is made of the next generation of processors, the AMD Renoir.

AMD Renoir will be, if all goes according to plan, the family of processors that arrives in 2020 under the 7nm + lithography. Not much is known about it, except that AMD has already confirmed that development is ready. Now comes the engineering phase, which is based on doing different tests on the silicon.

The frequency of RAM that the AMD Renoir would support is filtered

Within the drivers it is mentioned that Renoir would support LPDDR4X-4266MHz, come on, that it would support up to 4266MHz. As we know the frequency of the RAM is important for the performance of the Ryzen and especially in the APUs. We have already verified that the better the frequency, the better performance in games is obtained.

Thus within the latest Linux patch a reference to Renoir has been found. Specifically, it appears within the integrated memory controller (IMC) where it is indicated that it would support LPDDR4X-4266 memory.

The LPDDR4 standard was introduced to the market in 2014 and peaked at 3200MHz. In 2017 LPDDR4X was announced that allows to improve the speed up to 4266MHz. The current Ryzen do not support this by chance, but it seems that the Ryzen 4000 will. A reference to Renoir with LPDDR4 memory appears in the first patch, but in this second it already speaks of a speed of 4266MHz.

Renoir, according to the previous patch, will continue to have Vega graphics, specifically a Vega 10, we do not know why. This new patch adds new information about it. You can see that Renoir possibly uses the Display Next Core 2.1 (DCN) engine, while the Raven Ridge APUs are still using DCN 1.0. Navi already use DCN 2.0.

Source: TH