What would improve the performance of my laptop more? Specifically:
Upgrading the CPU from:
upgrading from a 1GB Elpida to a 4GB memory chip (KEMBONA SODIMM LAPTOP DDR2 4 GB 4G 800 MHZ PC2-6400 RAM)?
And a follow up question: How do I know which CPU is compatible with my laptop (Dell Inspiron 1545 PP41L)? Do I just look at the socket type? I know from experience, that Socket P fits into my laptop, but I don't know:
if phsyically fitting also means 'compatible' and
which other socket types would also fit and be compatible.
I apologize if this has been asked before, in this fashion, please point me to the previous questions.