After a few years it was time again to upgrade my computer. The “itch” started during the summer already. When I started looking at nearest release dates to see if it would be worth while to wait a bit. As Intel hadn’t made too much progress over the years over my current system, just added some cores and that’s it and AMD’s coming Zen3 was rumored to be really good. So I decided to wait and I’m so glad I did. After seeing AMD-s presentation I thought I might as well give it a try.

On the launch day I managed to grab myself a Ryzen 5800X. So that meant that after many more than a decade I was switching back to the Red Team from the Blue Team.

I paired the 5800X with the NZXT X63 AIO cooler and currently I think it was a good choice that I didn’t try and save on the cooler. Initially thought I botched the cooler installation somehow when I saw the full load temperatures go well over 87 degrees Celsius, under CineBench R23 multicore load . Even went as far as swapped the original paste that was pre-applied at the factory for Thermal Grizzly Hydronaut paste. Temp dropped only ~1-2 degrees.

Although while gaming or other lighter multicore loads the temperature is a bit more reasonable, the CineBench temperature still bothered me. So I started googling a bit about 5800X temperature. As it turns out some of the 5800X CPU-s seem to be running a bit warm, as other people had reported similar higher temperatures. Also it is interesting that the 5800X seems to be running on higher voltage out of the box when compared to other Ryzen 5000 series CPU’s.

To get the temperature to a more comfortable zone I finally turned to under volting. By lowering the voltage by 0,05 the temperature while gaming is ~63 degrees and running Cinebench R23 it is ~81 degrees Celsius. Still a bit high, but much better. Lowering the voltage didn’t luckily cost me any performance. At least when looking at the boost clock and benchmark numbers. I haven’t actually had time to find the lowest stable under volt yet, maybe I could get it lower and cooler.

Long story short. Although CineBench R23 load shouldn’t be the normal load for most of the people, but as I’m getting 67 degrees Celsius under normal gaming load and ~81 degrees Celsius on Cinebench with the NZXT X63. It makes me wonder if only a high end cooler is a must for these “warmer” CPU-s. Also I’m wondering what would the temperatures be with a regular cheaper (~30$ or so) AM4 air cooler. Even if the temperatures are higher than I’m used to, even compared to my old overclocked I7. I’m still pleased with my purchase and the performance boost was phenomenal.

What was interesting is, that even after under volting the CPU I was able to set boost clocks 200Mhz higher and its stable. So single core boost is over 5019Mhz, lighter multi core load 6 cores or so goes over 4900Mhz, yet all core full load is 4541 Mhz.

On the infinity fabric side, getting it to run on 1900Mhz didn’t require much messing about, just set it at that and that’s it. So 3800Mhz memory is easy to get working with 1:1 settings.