Question 2 rams with diffrent frequencies

[Kian8492]

Hi everybody.i am using 2 rams with different frequencies, one with 1333 mhz 2gb and another one with 1600 mhz 4gb, I activated xmp profile for the second one, should I remove the weaker one or motherboard will use both of them as their frequency?

 

[boju]

Faster ram will downclock to match

Dual channel in flex mode 1333 is better than single stick at 1600 + 2gb more. Flex mode (automatic), half of the 4gb in dual channel with the 2gb stick and remaining 2gb in single channel.

This is if mixing both works at all.

Place 4gb in the first designated slot and 2gb in the second.