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Can I install DDR3 1333 RAM into a notebook that is currently running DDR3 1066 and will it have any effect on performance?

  • 1
    Depends on the motherboard , check your motherboard model and see if it can support ddr3 1333 RAM – Shekhar Apr 21 '11 at 17:24
  • use cpuz -filehippo.com/download_cpuz to check your motherboard model – Shekhar Apr 21 '11 at 17:26
4

If the memory is otherwise identical, it will work fine at the lower speed. The clock speed specified for a memory module is the MAXIMUM speed that it will work at. There is no harm in using in a system configured to go slower.

0

lookup the manual on your notebook, it should mention all the different speeds of ram the motherboard supports.

-1

Old question, but only partially answered, as the question has two parts; the second part is “will it have any effect on performance?.

And the answer is yes. Not really noticeable under common routine tasks; but on heavy tasks, the faster speed will be noticed up to a 15% increase from 1066 to 1333 in the different stream memory tasks, as shown in the following test.

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