Question: what is the difference between low density and high density ram?
Answer: Generally speaking, low-density 1GB modules are made with 16 chips, 8 on each side, using 64Mx8 device, while high-density 1GB modules are made with 16 chips, 8 chips on each side, using 128Mx4 device. I've actually looked, and not all RAM is actually labeled one way or the other.