(Tested) Ryzen 7 5800X Cooling: Wraith Stealth and Dark Rock 4

 
I upgraded my testbed from Intel Core i7-8700K to AMD Ryzen 7 5800X. And I must say, the Ryzen 7 5800X brings a nice boost in performance. With its 8 cores / 16 threads, it shows around +60% gain the physics score of 3DMark FireStrike benchmark (17988 points for the core i7-8700K vs 29503 points for the Ryzen 7 5800X).

In CPU-Z benchmark, the Ryzen 7 5800X is +22% faster in single thread and up to +70% faster in the multi-threaded test:

Ryzen 7 5800X:

Core i7-8700K:

 
First time I really appreciate an AMD CPU!

 
Enough with CPU benchmarks, the web is full of these kind of tests.

The Ryzen 7 5800X is shipped in a box that has enough room for a CPU cooler… But instead of a CPU cooler, you have this: a piece of cardboard.

 
Fortunately, I have two CPU coolers in my lab:

• a Dark Rock 4 (be-quiet!) which is a 200W TDP cooler for AMD and Intel processors.
• a Wraith Stealth (AMD), a CPU cooler designed for a 65W TDP processor (like the Ryzen 5 3600).

The Ryzen 7 5800X is a 105W TDP processor. Even if the Wraith Stealth has been developed for a 65W TDP CPU, let’s see if it can cool a 105W TDP CPU.

The Wraith Stealth CPU cooler (shipped with some AMD CPUs):

 
The Wraith Stealth trying to cool the Ryzen 7 5800X:

 
The first test I did is to enter in the BIOS and see the CPU temperature at idle. After few minutes, the CPU temperature reached 58°C.

 
58°C is hot but the Ryzen 7 5800X can run up to 90°C.

Now let’s start Windows and AMD Ryzen Master. At idle the CPU temperature is 35°C:

 
Why this temperature is lower than in the BIOS? Probably due to the CPU voltage: in the BIOS screenshot, you can see 1.408V and on the Ryzen Master screenshot, the CPU voltage is 0.986V. A higher voltage leads to higher CPU temperature.

Ryzen Master has a built-in CPU stress test:

On the screenshot, the CPU temperature reached 83°C. Great! The Wraith Stealth cooler is able to dissipate all the heat produced by the Ryzen 7 5800X.

Another CPU stress test: the CPU Burner shipped with FurMark:

 
Ouch! The max temperature (90°C) is reached in few seconds.

Conclusion: the Wraith Stealth CPU cooler can cool a Ryzen 7 5800X at idle and under moderate CPU loads. For higher CPU loads, a serious CPU cooler is required, like the Dark Rock 4:

 
CPU temperature in the BIOS: 47 °C:

 
Ryzen Mater at idle: 29°C:

 
Ryzen Master stress test: 67°C:

 
FurMark CPU Burner: 83°C:

 
The Ryzen 7 5800X is a processor that can generate a lot of heat. A high-end CPU cooler is required to enjoy this great CPU. I will try to update this article with a test of the Dark Rock PRO 4 CPU cooler.