The Netgear unit is very fast. This was one of the reasons I selected it over similar NAS units offered by Buffalo.
I used Google to locate the write/read speed comparisons
these are the reviews/speed comparisons I saw where ReadyNAS was fastest:
http://www.tomsguide.com/us/infrant-readynas-nv,review-654-8.html
http://review.zdnet.com/external-hard-drives/netgear-readynas-nv-network/4505-3190_16-32651256.html
