new R7 3800x, how to know which one is better OC?

[EmualDave2k12]

I bought 2 R7 3800x, one for me and the other for my son, how can I test which one overclock better, is there any way to test, for the time being I will be using the cooler that came with the CPU, later I will be upgrading to water cooler.

Now, how can I test which one is better for overclocking?

Thanks in advance.

 

[Forsaken1]

Without running them.I would pick a Malaysian packaged one over China.

Quick & dirty.Running.Set max cpu volts your comfortable with and move multi up till it will not post.Run cinebebech.

 

[tom_ozahoski]

I would look at the build week and pick the newest.