This week AMD announced two entry-level quad-core processors, the Ryzen 3 3100 and 3300X. The difference between the two 4-core / 8-thread parts, however, is to be found in the way how the active processor cores are assigned. 

In a block diagram leaked by ViveK oneindia.co.in (as you can see watermarked in the screenshot), you can see that there are some subtle differences in-between the two new Ryzen 3 processors. First and foremost the CCX assignments are different. While each die used for Ryzen 3000  still is a physical the 8-core (ZEN2 processor die) part, it holds two 4-core clusters with each cluster of four processors cores called a CCX. 

The 3100 will get a 2+2 configuration (8MB+8MB L3) thus is grabbing two cores per CCX cluster, and that (should/could) make it slower than the 3300X for latency in relation to the full 16 MB L3 cache. The 3300X, on the other hand, has one full CCX activated, four cores e.g. 4+0, this processor will benefit from that, albeit a little. Earlier on a single thread CB15 score already leaked for the 3300X, which shows it's a potent quad-core processor. Time will tell, you can expect reviews next month. 

AMD Ryzen 3 3300X Has a fully enabled CCX, unlike the Ryzen 3 3100