Ryzen 5 1400 SKU is the least expensive processor from the series you can get right now, which does come with half of the L3 cache, a base clock of 3.2GHz, an all-core clock of the same 3.2GHz, a 2-core boost of 3.4GHz while the single-core boost does add 50MHz over this frequency. The processor does still feature a 65W TDP, is overclocking unlocked and on retail we can see it shipped along with the Wraith Stealth CPU cooler.
As we have mentioned before, the Ryzen 5 1400 SKU does feature quite low stock clocks, so we did expect lower overclocking abilities versus the more expensive processors. Our first attempt was at 4GHz, where the system did not seem to boot no matter which voltage we have thrown at it.
3.9GHz is the speed most SKUs were able to achieve at decent voltage, meaning that it was usable 24/7; in the case of the Ryzen 5 1400, the system did not boot while the CPU voltage was set at 1.4V but started showing video output at 1.412V and froze at the login screen. Our last attempt was at 1.418V, where we have succeeded to load Windows 10, but right after we have started the Prime95 stress application, we have got a black screen.
Given the results, we were forced to go one step lower at 3.8GHz; at 1.381V and 1.393V the system has proven unstable, while at 1.4V we have got a crash in Prime95 after a few minutes. To our surprise, when we did set the CPU voltage at 1.412V, the Prime95 instance has passed with flying colors!
Via CPU-Z, we have also performed a validation at this frequency:
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