Confusion

[logan141]

hi guys i am having a 450 watt dc output computer and iam planning to buy a graphic card so iam planing to buy this graphic card Sapphire AMD/ATI HD 7870 HDMI OC Edition 2 GB GDDR5 Graphics Card but its power supply required is 500 watt so i want to know will it work on my computer

 

[Sumukh_Bhagat]

You should probably get a new 600w PSU, as that card is a OC Edition.

 

[dheeraj9933]

http://www.guru3d.com/articles_pages/amd_radeon_hd_7850_and_7870_review,7.html
this is a power consumption chart for 7850 and 7870
a 7870 OC dosent consume too much power from a regular one, it is very little.
a 500W good quality PSU is more than enough even if u want to OC some more
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094
a 520W Seasonic PSU, will be enough,
No worries at all

 

[Sunius]

Depends on the brand and model of your current power supply unit. If you could tell us the model, we could give you an exact answer.

@Sumukh: 600w for an HD 7870 is totally unreasonable. A decent 450 watt unit can easily drive it.

 

[dheeraj9933]

+1

 

[bc5]

Alternatively, GTX660 is a very low power card. If you go with a Radeon, I'd avoid Sapphire - I've had a number of bad experiences with them.