Clock Speed and Memory Bandwidth
Before we dive into performance, let’s start by looking at the clock frequencies we experienced with the CPU. We will also look at the memory bandwidth here.
The all-core boost frequency on the Intel Core i5-10600K is supposed to be 4.5GHz. It can Turbo Boost, on single-core, up to 4.8GHz.
In the screenshot above you will see the CPU running in Cinebench R20 showing the all-core frequency. This shows that the CPU is indeed hitting its maximum all-core that it should be. It reaches 4.496GHz running all the cores at once.
In this second screenshot above you will see the CPU running a single-core in Cinebench R20. This shows that we do see a single-core hitting 4.8GHz at a given time. The cores switch to which one hits the 4.8, eventually, all of them do, but not at the same time. Therefore the maximum Turbo Boost at 4.8GHz is working.
Now we will look at memory bandwidth between the systems. Keep in mind that the memory is running at 3600MHz on all three CPUs here. The timings are also the same, except for the Command Rate, which is 1T on the AMD system and 2T on Intel, we are using XMP II and DOCP settings.
In the first graph above is the memory read performance. We see all the CPUs very close together on memory read. Technically the Ryzen 5 3600X is just slightly faster at 50GB/s versus 49GB/s on the Intel CPUs, but they are so close you can call them all similar. Both platforms have a lot of memory bandwidth on read.
In this graph, we are showing the memory write performance. Now on this one, we really see a big difference. The two Intel CPU platforms take off on memory writes with 52GB/s and 50GB/s versus the Ryzen 5 3600X on X570 at a much lower 28GB/s. This is consistent with past tests. For whatever reason, Intel exceeds greatly on memory writes. The Intel Core i5-10600K even seems to be faster than the Intel Core i5-9600K at 52GB/s versus 50GB/s.