The new line of MacBook Pros features the latest M3 CPUs, made by Chinese TSMC on their 3nm process. The major issue is that Apple, this time around, keeps the number of cores of the CPU but trades performance cores (big-little architecture as most phone-type ARM CPUs these days) by replacing them with efficiency cores. This makes performance similar in most advanced use-cases to the older M2 MacBooks, despite the substantially raised price-tags. Of course, as always with Apple CPUs, hyper-threading and scalability are inferior to both AMD’s and Intel’s x86 current CPU offerings.
Apart from the marked-up price (most markets) and a refresh of the CPU, the differences are almost negligible.
Apple also offers the measly 8GB RAM option as the standard/base offering for these MacBooks, which is sort of ridiculous as these 8GB is shared between the GPU and CPU so there is no further dedicated video/AI memory