How much is the PSU watt needed for Radeon HD 5770?

Hello buddies, i have a 450 W PSU.

My specs-

intel dual core E5200. OC at 3.00 GHz.

3 GB RAM.

320 GB HDD.

So my question is will radeon HD 5770 run smooth on my rig without game crashes and all that bad stuff. Thanks|||450 W is the minimum and it will be fine as long as you have a 6 pin 75 W pci express power cable.do not use any 4 to 6 pin converter.I myself have the card on my cooler master 600 W psu.it is a very good can handle any games at demanding settings.Go for 600 W if you want to use Crossfire later.|||The HD5770 pulls 75w through a 6-pin PCIe power connector. The 450w PSU is the minimum requirement listed for this card. If you (ever) plan to use 2 cards in a Crossfire setup however, you'll need 2 such PCIe slots and a minimum 600w PSU.

Personally, I'd opt for a bigger power supply though. Running things at full capacity all the time just wears them out more quickly.|||450w PSU with 1 6-pin PCI-e



If that's not a no name PSU, you'll be okay with that one. But if it is look into picking up one from a reliable company like Antec, XFX, Seasonic, or Corsair. Lower quality PSUs may not be able to provide the rated wattage.



You should check your system power usage here, and use it as a guideline to find a PSU with a decent amount of headroom for any future expansion:



http://www.antec.outervision.com/





A nice one that could comfortably support that:

http://www.newegg.com/Product/Product.as…|||450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)