AMD’s Ryzen 6900HX is expected to be announced on January 4, 2022 at CES in Las Vegas, but its specs have already been leaked and a few things look particularly interesting, especially on the RAM and GPU side.
AMD Rembrandt (Ryzen 6000) processors will power laptops in 2022 and a leak tells us a little more about the technical advances we can expect in this regard. Our colleagues from Wccftech have indeed revealed some interesting information about the Ryzen 6900HX, a very high-end processor that will replace the current 5900HX on laptops.
DDR5, but no 3D V-Cache
This CPU will embed 8 cores (and 16 threads) based no longer on the Zen 3 architecture, but Zen 3+. The latter is a small evolution which brings an engraving process in 6 nm (against 7 nm currently), as well as 3D V-Cache, a vertical stacking technique of the cache memory which should provide a good performance boost, in game in particular. Unfortunately, it looks like the mobile versions of the Zen 3+ CPUs won’t take advantage of 3D V-Cache and this Ryzen 6900HX will have to make do with its 16MB L3 cache and 4MB L2.
Clocked at 4.6 GHz, it can on the other hand be coupled to DDR5 RAM and take advantage of its wide bandwidth, while this is not expected for CPUs desktop only from the next architecture, Zen 4.
The integrated GPU part of the processor may benefit from serious performance gains since the RDNA 2 microarchitecture – found in particular in the Xbox Series and PlayStation 5 consoles – will be included under the name Radeon 680M and will replace the Vega architecture. . That said, this type of processor intended for very high-end PCs will generally be coupled with dedicated graphics cards and the interest of the integrated GPU may seem limited. If the RDNA 2 architecture were to be integrated into other processors in the range, such as the Ryzen 5 and 7, this could, on the other hand, prove to be particularly interesting for ultrabooks which do not have a dedicated GPU. According to recent leaks of benchmarks, we can expect performance worthy of that of a GeForce GTX 1050 or an MX550 from Nvidia, dedicated entry-level graphics cards.
We don’t yet know how many GPUs these RDNA 2 chips will ship or when the Ryzen 6900HX will start powering laptops, but we should learn more very soon at the next CES in early January 2022.