In this roundup, we examined the newly announced SO-DIMM DDR2-800 memory that can run up to 400MHz and improve performance...or perhaps not? Actually, none of the currently sold laptops can support this memory to its fullest (400MHz). So whether you buy SO-DIMM DDR2-667 or SO-DIMM DDR2-800 memory modules, the performance will be more or less exactly the same. There is no question about memory compatibility, since the DDR2-800 memory modules will work just fine at 667MHz in every laptop. Of course, we all would like to have a product that works according to its specs in our laptop, but its not the fault of the memory manufacturers, they indeed offer memory that can work at 400MHz, its just the laptops cannot utilize it.

Moving on to our tests, both Crucial and OCZ are well respected memory manufacturers and both their modules worked perfectly in our laptops, Asus A6JA and A7s. In half the tests, Crucial memory was faster and in the other half, OCZ got first place.

Looking at the test results in greater detail, we can see that upgrading your laptop's memory from 1GB DDR2-533 to 1GB DDR2-667 does offer an improvement in the overall performance as most tests showed. Adding a second 1GB of DDR2-667 is a good idea also (total 2x1GB), since this affects memory bandwidth in most tests.

Ending this roundup, we are satisfied with the performance of the memory modules from Crucial and OCZ. You probably won't notice huge differences between the various memory modules from different vendors, so the only issue would be compatibility, which wasn't an issue with either of the tested memory modules and price.