![]() ![]() This configuration is interesting because it uses only one CCX and avoids CCX inter-connection issues (mainly the slowness: two cores on different CCX can communicate at around 30GB/s –via Ryzen Infinity Fabric which depends on the memory controller clock speed– while two cores on the same CCX can communicate at 175GB/s). This can be emulated on a Ryzen 7 with two configurations: FOUR (2 + 2) or FOUR (4 + 0). ![]() It’s a HEIGHT (4 + 4) or Auto configuration: 1Ī Ryor 1600X has two CCX and 6 cores ( 6C/12T) enabled:Ī Ryor 1500X has two CCX and 4 cores ( 4C/8T) enabled. Here is the downcore control in the MSI X370 Gaming Pro Carbon BIOS:Ī Ryzen 7 CPU has two CCX with all cores enabled (8 cores or 8C/16T). The downcore control is an option available in the BIOS of X370 motherboards (maybe on other chipsets like the B350 too, I don’t know). So disabling cores on Ryzen 7 makes it possible to emulate a Ryzen 5 CPU. Ryzen 7 and Ryzen 5 chips use the same die, which is made up of two CCX ( Cpu CompleX), each CCX having 4 cores. This feature allows to enable / disable cores. ![]() AMD Ryzen 7 processors comes with a nice feature: the downcore control. ![]()
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