|Well, kinda. If you're using that dual-core CPU to run several programs at once, having lots of memory will let the CPU run at full speed--no need to access the slow mechanical hard drive. |
"upgrade my Toshiba L505 laptop from 3 to 4Gb"
What are you using it for?
It won't speed up your web browser.
It might speed up game loading times.
It will speed up any video editing tasks.
HTPC | Pentium M @ 2.82GHz, 2MB L2) | 4GB | 1.0TB | Radeon HD5750 | Blu-Ray
Win 7 Pro | HDMI out to Onkyo TX-SR707 receiver & Samsung Series 5/63"