Quote: Originally Posted by bobkn
Quote: Originally Posted by Erick Aguilar
Sapphire HD6670 OR 7770 since it is incredibly low power consumption, but I think the 7770's limit is 450.
I'm confused by their listings, but www.sapphiretech.com
has one 7770 that needs a 6 pin PCI-E power connector and a 500W PSU. The other 7770s have no auxiliary power, and only require a 400W PSU.
I'm waiting for someone to invoke the conventional wisdom in this forum, requiring at least a 25% margin over the specified PSUs...
I would commend on the numerous 7700 series offerings, but the sapphire page is terrible and will not load for me.
But yeah, I think the one you are referring to is the flexible 7770 or something like that I believe it's called.
When it comes to the PSU, you are also right, it is recommendable to have some extra power laying around, specially if you do not have a good PSU.
I have the HD7770 Vapor X OC Version and the specifications on the very box says it requires at least a 430Watt PSU, so it is very confusing at times. Either way I have been running mine overclocked over the base OC on a 450Watt PSU and it holds great if you ask me.
Still planning to get a 550WSeasonc PSU in the future though, you never know when your PSU might stop outputting as much wattage as it first used to.