Little to no improvment in anything that is not a synthetic benchmark.... consider that this data is with a 4GHz QX6700, I doubt your laptop CPU is going to be anywhere near as "memory bandwidth starved" ...
Another thing to consider is if your laptop will even support 4 gb of RAM - it may have come with 3 for a reason. I have a 2006 vintage HP with a 2.0 Ghz core 2 duo. I looked at the chipset in the machine and knew from that that that chipset supports 4 GB. DDR2 got so cheap at one point that I bought a couple of DDR2 modules to upgrade it from 2GB to 4GB...and the system would only see 3.0GB even with a 64 bit OS installed. Windows says 4 GB installed, 3 GB usable...and as I said, there is a 64 bit OS installed (Win 7 Pro x64). When I checked with HP I learned that the system really only supports 3 GB even thought the chipset its using supports 4. It's a limitation on HP's bios.
Yup and top that off with the fact that a laptop is going to have other performance bottlenecks like a slow disk drive that will limit the benefit even more.
Another thing to consider is if your laptop will even support 4 gb of RAM - it may have come with 3 for a reason. I have a 2006 vintage HP with a 2.0 Ghz core 2 duo. I looked at the chipset in the machine and knew from that that that chipset supports 4 GB. DDR2 got so cheap at one point that I bought a couple of DDR2 modules to upgrade it from 2GB to 4GB...and the system would only see 3.0GB even with a 64 bit OS installed. Windows says 4 GB installed, 3 GB usable...and as I said, there is a 64 bit OS installed (Win 7 Pro x64). When I checked with HP I learned that the system really only supports 3 GB even thought the chipset its using supports 4. It's a limitation on HP's bios.
I had a Gateway with a GMA950 chipset in it that was the same way. Installed 2x2GB DDR2-800 into it, but the BIOS and Windows would only recognize 3GB, even thought I put Win7 64-bit on there.
It is ICH9 = Sata 1yeah ssd first. ram second. ddr2 is getting more and more expensive - so dont wait too long
It is ICH9 = Sata 1
For $ 150 I will loose 200 GB. Also the failure rate is little too high for my taste. I think SSD need lot maturity before I can switch from HDD.
SSD for me is more like a novelty item!
20 to 30 % failure.......ICH9 is SATA2.
There are cheaper SSD's.
Failures are low.
Novelty huh? LOL!