KitGuru KitGuru.net – Tech News | Hardware News | Hardware Reviews | IOS | Mobile | Gaming | Graphics Cards
We would encourage you to watch our video review for visual indications of how the clock dynamics function on the Ryzen 7 5700G in its differing operating modes. We will briefly analyse the behaviour here though.
Stock-Clocked Operating Frequencies:
In terms of CPU-only load clock speeds, the Ryzen 7 5700G typically ran at around 4.375GHz for 88W package power under a CPU-only load. Maximum boost was generally 4650MHz single-threaded.
The GPU would stick to 2GHz flat when not having its power diverted to CPU cores – i.e. in a GPU-only loading scenario.
Running Cinebench plus 3DMark stress test simultaneously saw the GPU and CPU cores share the 88W power budget. This often resulted in around 1.5GHz on the GPU cores and around 4.2GHz on the CPU cores.
Precision Boost Overdrive (PBO) Clocks:
Clearly power-limited at stock, we applied PBO to remove the shackles.
The CPU now run at around 4.43GHz under heavy load. This was only a modest boost versus stock.
However, a package power usage of just under 120W proved beneficial from PBO when both the CPU and iGPU were loaded simultaneously. The GPU now maintained 2GHz flat whilst the CPU ran at the same 4.43GHz all-core.
This is a good upgrade provided you can cool 120W of package power.
Manual Overclocking and Further PBO Tuning:
We did a little playing about with manual overclocking and pushed the GPU cores to 2.3GHz through the UEFI. This delivered a roughly 7% gain in the 3DMark Time Spy graphics score.
We also messed with manual PBO adjustments. This allowed us to push the GPU cores to 2.2GHz using the maximum allowable offset of +200MHz. And the CPU cores delivered from 100MHz slower up to similar speeds to what we saw from standard PBO.
Clock Speeds Conclusion:
Put simply, there are a few different – enjoyable – ways to tinker with the Ryzen 7 5700G APU and the headroom looks to be reasonable. We particularly like the flexibility that added package power budget from applying PBO provides, whilst also maintaining worry-free levels of stability.
