HD 5770 Power and amp requirements

[Dudey007]

Hi everyone

Im Planning to put either a HD 4870 or HD 5770 graphics card to replace my old 8880GTS. What are the power and amp requiremetns of the cards. Will Hiper HPU-4K580 PSU do the job? It does have a dedicated PCI-E connection if that makes any difference.

Computer Specs:

Intel E6600 2.4 GHz
ASUS P5NE-SLI motherboard
Gainward 8800GTS 640mb
2GB Corsair RAM
Windows Professional x32

Thanks

 

[davcon]

Yes it has more then enough power and amps for either card.

 

[Dudey007]

The reason im asking is that my PSU can only carry 20A over the 12v which is not enough according to some people, is it the dedicated PCI-E connection that makes the dfifference?

 

[Henry Chinaski]

A quality 400W PSU with one PCIE connector for the 5770 and a quality 500W PSU with two PCIe connectors for the 4870 is recommended.
A 5770 can pull 110W(9A) (more or less) at full load.
A 4870 can pull 200W (17A) (more or less) at full load.

Yours is a multi-rail design PSU. It can deliver 20A on the +12V1 and 18A on the +12V2.

http://www.hipergroup.com/products.php?lv=3&cate=1&type=30&pid=12

As Davcon has said, your PSU has power enough (it can deliver 30A/360W (aprox.) on the +12V output).

 

[Dudey007]

so do both the HD 5770 and HD 4870 haver 2 PCI-E power connections- i.e. have to power cables fed ito them

 

[Henry Chinaski]

To feed the 5770 you need a 6-pin PCIe connector
To feed the 4870 you need two 6-pin PCIe connector

Since your PSU presents two 6-pin PCIe connectors, it's able to feed both.
http://www.hipergroup.com/products.php?lv=3&cate=1&type=30&pid=12&block=Connectors

Anyway, I would think about buying a new PSU in the future because the quality of your PSU is very low. Its capacitors are extremely bad (Fuhjyyu...).
Therefore I would go for the 5770.

 

[Dudey007]

Will it supply thre demand for power even when running high powered games and HD movies through the HD 5770?