Hi, I bought a Samsung Notebook with the new Centrino2 technology , which doesnt have Intel Turbo Memory and just this slower RAM (3GB). Do you think the performance differences will be big? Will I be able to upgrade the ram to the stronger version, if my notebook seems slow.
The difference would only be huge if you used your computer for games and videos because the main difference between DDR2 and DDR3 is just the amount of stream processors and how fast its pumps that information to your screen. So it all really depends on what your going to be using the laptop for. If you want games, go with DDR3 (It's a little more expensive but it's worth the extra money) And if you just want to do like...text work or 2D work, then DDR2 is your best choice, and no matter what kind of RAM you get, there won't be a big performance boost. And your notebook might seem slow because it probably doesn't have enough RAM to support the OS so...like if you have windows XP you need atleast 512Mb which isn't a lot. And for vista you need at LEAST 2048Mb...Hope this helped. 
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