CPU
Zen 3+, which was to bring increases in IPC by about 5-10% and in combination with an increase in clock frequencies and a 6nm process in the form of a processor Warhol bring the largest half-generation shift in performance of the past Zen, was probably canceled. Leaker ExecutableFix confirmed that there have been no reports of this product for some time. At the same time, however, pointed out that the APU Rembrandt equipped Zen 3+ and manufactured on a 6nm process, still hear them.
Although AMD APU has so far equipped a slightly improved version of the architecture than the standalone processors were built on, the core equipment Zen 3+ would bring an above-standard shift that would allow the APU Rembrandt on the same beats with the desktop Ryzeny 5000 could achieve at least 5% higher performance. Taking into account previous IPC reports Zen 3+, then it would be opposite the APU Cezanne (even with regard to higher measures) we could expect shifts of ~ 10%, which is a significant shift for a half-generation upgrade. In the end, however, it may not be a luxury, but rather a necessity, because sometime at the turn of 2021/2022 Intel will probably release its mobile Alder Lake, whose large cores may have an IPC about ~ 20% above current Zen 3 and thus about 10% above Zen 3+. Mobile Rembrandt can be expected in early 2022.
GPU
The strong point of this APU can be the integrated graphics, which thanks to the deployment of the RDNA 2 architecture can bring a 1.5-generation shift. Original mobile Vega in fact, it has already been improved by some elements of the first generation RDNAso step by step Vega+ -> RDNA 2 cannot be seen as a full two-generation step.
HELP Rembrandt according to the mentioned leaker, it has to offer up to 12 CU (Compute Units), which is an intergenerational shift of 50%. If we take into account that the energy efficiency between RDNA and RDNA 2 also increases by ~ 50%, then in a consumption-limited chip, this 50% increase in energy efficiency brings room for a 50% increase in performance given by the number of CPUs. Memory data throughput could also be increased by 50% by using DDR5-4800 instead of DDR4-3200. Thus, it seems that for 15W mobile models, 50% acceleration is practically given.
We can speculate on other improvements that could bring an even more significant performance shift. For example, the 6nm process itself will allow some small increase in beats on the one hand and some small reduction in energy requirements at the same beats on the other. We can also speculate whether the energy improvement between Vega+ a RDNA 2 will not be higher than ~ 50% between RDNA a RDNA 2.
~ 50% acceleration of the integrated GPU with limited TDP can therefore be considered as plus or minus a realistic outlook; however, there is some room for a more optimistic scenario, which could be one percentage point higher (but we must not forget that the 6nm process is nothing more than a tightened 7nm EUV process; but the improvements are relatively small, so miracles cannot be expected).
Given that we expect the APU to be released around the first half of the year Cezanne for retail desktop, we could expect the announcement of a mobile APU at the beginning of the year (CES 2022) Rembrandt. By analogy, the desktop version would make sense in the middle of 2022 (following Computex 2022), but given the fact that it will be tied to socket AM5 (DDR5) and boards equipped with this socket will probably not arrive until the second half of 2022, this interval slightly longer.
–
