PS3 emulator gets faster without Intel Core 12000 leaked E cores

Apparently it is RPCS3, in other words, the most powerful and popular free (open source) emulator on the PlayStation 3 that manages to get superior performance if it happens to disable the efficiency-focused cores in the recently introduced Intel Core 12000 processors.

It’s strange … but it’s true!

PS3 emulator runs faster without Intel Core 12000 E cores

PS3 emulator

Therefore, after some tests by the team behind the RPCS3 emulator, the new Intel Alder Lake processors (Core 12000) have a very significant increase in performance when the E cores are deactivated. In other words, when the processing cores are geared towards efficiency, they are put on the drawer. But isn’t it weird to have more power with less active cores?

Ultimately, in case you didn’t know, the new Intel processors are based on a hybrid configuration. That means a big, SMALL design. Based on a mixture of nuclei, some faster and therefore more energy-hungry (P-nuclei), others less fast and more efficient in the energy field (E-nuclei).

The difference, however, is not just in the performance itself, as the P-cores are based on the Golden Cave architecture. Therefore, you can easily execute AVX-512 commands. The problem here is that this AVX-512 ‘Boost’ is only available when the E cores are ‘off’. In this way, of course, due to software problems, view the processor as a “whole” … More processors can mean a decrease in performance.

Interestingly, not all “slow” E-cores are as fast as the cores we find in Intel Core 8000, 9000, or 10000 processors. However, because of this problem, in some cases (not just in this emulator) it is easier to get a performance boost just with the P-cores in-game.

Finally a feeling, even with the E cores switched off … There is an increase in performance of approx. 15%! This is when we compare the new Intel Core i9-12900K with the ‘old’ i9-11900K.

Besides, what do you think of all of this? Please let us know what you think in the comments below.

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