6850 with 300w psu?

[nemoh]

Hello, I currently have a dell xps420 Q6600 and I'm looking to replace my 8800gt but the psu is only 300w, I heard that dell's psu are pretty good.

Could I replace my 8800 for a 6850hd without changing the psu?6

 

[Sick Jargon]

http://www.amd.com/us/products/desktop/graphics/amd-radeon-hd-6000/hd-6850/Pages/amd-radeon-hd-6850-overview.aspx#3

Afraid not, you would require a 600W PSU. Though they do recommend some certified PSU's on that link I provided. Not the most cheapest options mind.

Hope you find something to suit your needs either way.

 

[yummerzzz]

Yo do not need a 600W PSU for a single HD 6850, you can run a HD off a Antec Earthwatts 380W PSU, or even a Corsair Builder Series CX430 430W PSU.

EDIT: You could probably run a HD 6850 on that PSU as it only uses around 10 more watts than your 8800GT, but if you want to stay safe, grab a HD 5770 or HD 6770, as they use the same or less power as the 8800GT but perform much better.

 

[nemoh]

I either stick with my 300w psu or buy an high end psu so I can upgrade the rest of my hardware soon. So I'll prolly get a 600-750w psu with and a hd 6850 for now...

thanks for the quick response

 

[yummerzzz]

I think your PSU is the 375W one, IIRC the Dell XPS 420 ships with the 375W PSU, which is enough for a HD 6850 as it consumes around the same power (Only 10 watts more) than your current GPU.

 

[Sick Jargon]

So in AMD's suggestion its based on SLI conditions not just the single card?

Sorry if I threw you off for a moment nemoh

 

[nemoh]

You are probably right... I can't check right now but I think I'll order a 6850 and if it doesnt work out ill just upgrade my psu.

Do you have any recommandation on wich 6850 should I get?? I was thinking about the Powercolor one

 

[yummerzzz]

Hm, not sure, any with a good cooler and exhaust would be fine.

 

[iam2thecrowe]

i have the powercolour one with the PCS cooler, its great, low temps, low noise, low price

 

[nemoh]

Best answer selected by nemoh.