Using different ram speeds

[SwaggMcSwaggySwag]

Will there be problems if  use different ram speeds on one motherboard  my cpu only supports 1333 MHz i want to upgrade to 8 gb of ram but the 1600 MHz one is cheaper don't know how so i want to know will there be any problems.

[Lolucoca]

There shouldn't be any problems, the 1600 should clock down to 1333 if you're using single-channel or 667 on dual-channel.

[ApolloX75]

Will there be problems if use different ram speeds on one motherboard my cpu only supports 1333 MHz i want to upgrade to 8 gb of ram but the 1600 MHz one is cheaper don't know how so i want to know will there be any problems.

It'll clock down fine, the only issues that usually come up are when you mix RAM voltages. Say one set requires 1.4v and the other is hungrier 1.5v then you might end up with some instabilities.