Is CMSO8GX3M1A1600C11 compatible with CMSO8GX3M1A1333C9

[Mahesh Abnave]

I have Dell XPS 15 L502X laptop with Intel i7 2630QM Processor with two RAMs:

• 
  ■Samsung 4GB DDR3
  ■Corsair 8GB CMSO8GX3M1A1333C9 with below specs
  • 
    ■DDR3-1333/PC3-10600
    ■SO-DIMM Memory Module
    ■204-pin Configuration
    ■9-9-9-24 CAS Latency

Both these running fine for at least an year. Now I want to remove 4GB RAM and buy another 8GB one by Corsair. But this one is a bit different model. The specs are as below:

• 
  ■Corsair 8GB CMSO8GX3M1A1600C11
  ■DDR3-1600/PC3-12800
  ■SO-DIMM Memory Module
  ■204-pin Configuration
  ■9-9-9-24 CAS Latency

So the only difference between Two corsair's is that the one I currently have is DDR3-1333/PC3-10600, while the one which I am planning to buy is DDR3-1600/PC3-12800. Will these work together well in dual channel?

 

[NormH]

try to match the ram but unless you are doing CAD or heavy video editing 8gb is more than enough for any laptop. also the 4gb may be slowing you down by restricting your performance to single thread speed id match the 8gb you already have or just leave it as is.