Comparison of CPU performance during gaming and stress testing.
Comparison of CPU performance during gaming and stress testing.
I am curious about how my Ryzen 7800X3D CPU performs. With the PBO curve at -20 and PPT at 80W, I see temperatures staying under 78°C in CR23, reaching up to 18500 points. During The Last of Us Part II, where shaders load dynamically, I observed usage spikes and temperature increases to around 84°C.
You're likely correct. I examined the CPU monitoring data in a graph format. The sudden increases in usage and temperature during gaming suggest the cooling system isn't responding quickly enough. This might be the reason. Regarding the maximum temperature for the 7800x3d, it's often mentioned as around 89°C, but official AMD documents for the 7000 series state the overall maximum is 95°C.
Stress tests and similar benchmarks rely on different instructions and patterns than the one your game used. Certain ones aim to create heat for cooling purposes, like an Intel burn test. Processors track their temperatures, which vary widely. If a critical threshold is hit, the processor may reduce speed or shut down to safeguard itself. 89C could be one of those. Brief, occasional slowdowns are normal, but sustained throttling is not.
The CPU stress test only puts intense pressure on the CPU cores.
A CPU is more than just its cores; it includes Memory controllers and cache, which the Ryzen 7800X3D has in abundance with its stacked 3D cache.
During gaming, the games rely on the 3D cache for quicker shader loading, which helps cut down on RAM delays and boosts performance.
This results in increased heat generation across the entire chip when cores and cache operate at 90% capacity, compared to just the cores at full 100%.
In semiconductors, 3D cache often causes temperature spikes. This happens because the stacked cache layers can trap heat temporarily when data is being loaded.