Most people do not recommend either of these.
The difference between good supplies and bad supplies:
- Better control of output voltage
- Better hold up time
- Better components with a longer life span
The worst supplies don't have rated efficiency over 80% or active power factor correction.
This list is a good place to start:
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
VS and RM series are tier 3, which are ok but not great
The output on these supplies is generally within specification, just using some components that are not as good as better quality supplies.
From Corsair, the TX and HX series are better.
What are your CPU and graphics card and I can recommend a supply?