Yes, You Can Get Your Hands On An AMD Ryzen 5 PRO 4650G 1

Yes, You Can Get Your Hands On An AMD Ryzen 5 PRO 4650G

AMD Hardware News
Yes, You Can Get Your Hands On An AMD Ryzen 5 PRO 4650G 2

Assuming That The eBay Seller Still Has Some

It would be a bit of a gamble to grab a Ryzen 5 PRO 4650G from an overseas reseller but it is also the only way to get your hands on one short of buying a full system which is build around one.  It seems a few people managed to get their hands on a certain number of this Renoir chip and are selling them via eBay and similar markets and The Guru of 3D managed to get their hands on one.

It is a 65W 8-core multi-threaded APU with a base 3.6GHz clock that can boost up to 4.4GHz with an integrated GPU that has 8 CUs running at 2.1GHz, which makes it the fastest iGPU in this family of AMD processors.  This is born out by the TimeSpy GPU result of 1443, which surpasses any other APU that Guru of 3D has in their stables. 

The CPU performance is broken down by memory speeds, they tested with two different types of memory at frequencies ranging from DDR4-3200 to DDR4-4533 which had a large effect on memory bandwidth but not so much on performance.   Generally the CPU performs a hair better than a Ryzen 5 3600, but take a look for yourself in the full review.