Go for the size or for the bus

Cuong Nguyen

Honorable
Jan 1, 2014
2
0
10,510
Hi,
I have a netbook which has 512 Mb RAM integrated on board (1.6Ghz) and 512 Mb RAM stick (1.6Ghz) to put into the slot.
My friend give me 1 Gb RAM stick (800Mhz). When i plug it into the RAM slot, it becomes 1.5 Gb with 800Mhz.
Should i go for 1Gb RAM with 1.6 Ghz or 1.5 Gb RAM with 800 Mhz ? In other words, should i sacrify the space or the speed to get the best performance ?
Thanks