Ryzen's internal bandwidth depends on the ram

The new AMD Ryzen processors are based on an almost completely new design inside, their Zen micro-architecture has been developed from scratch to finally offer a very competitive product capable of fighting with the highest range of Intel. Among the most important novelties we find the new Infinity Fabric bus.

Ryzen interconnect bus is RAM dependent

Infinity Fabric is the successor to HyperTransport and becomes AMD's newest interconnect technology. This new bus is used in the advanced Ryzen processors to connect the different CCX complexes to each other with the rest of the elements of the chip that are not part of the processing cores, for example the PCI-Express complex and the integrated south bridge (southbridge). AMD has claimed that this Infinity Fabric bus is synchronized with the memory clock frequency.

The speed of RAM has a very important impact on the performance of AMD Ryzen processors, in fact it influences much more than in the case of Intel processors. Finally the secret comes to light, this dependence on the speed of RAM should be due to being connected to the interconnection bus. Infinity Fabric is a 256-bit bi-directional interface that is used in Zen microarchitecture and will also be used in Vega graphics cores.

This bus has a direct dependence on the clock speed of the RAM used, for example if we use memories at 2133 MHz the bus will operate at a speed of 1066 MHz, therefore the use of high-speed RAM has a great influence on the bandwidth of the interconnection of all the elements that make up the AMD Ryzen processors.

After knowing this information we can affirm that the speed of RAM is more important than ever for users of AMD processors, let's hope that the motherboard manufacturers have solved all the BIOS problems as soon as possible and can mount high-speed memories, then we will see the true potential of Ryzen.

Source: techpowerup