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New Video Card - 6770 vs 6790

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  • Graphics Cards
  • Graphics
Last response: in Graphics & Displays
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October 15, 2011 8:27:45 AM

Hello guys ! I'm kinda new arround here, and i would really like your help and suggestions.

I want to upgrade my videocard and I was wondering if i could go for a ATI HD 6790 instead of an 6770, without having the "bottleneck" issue. My CPU is a Core 2 Quad Q8400, overclocked a little to 3.0GHz and a PSU Sirtec HP 450W.

I'm opened to any discussions and suggestions. Thank you.

More about : video card 6770 6790

October 15, 2011 1:10:20 PM

6790 all the way. With the psu you are running you should be able to handle a 6870. Spend around 40-50 bucks more and get the better card. I think you would be happier. Do not get me wrong those two cards you have picked out are great but there is always better for just a tad bit more money.
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October 15, 2011 1:46:27 PM

Resolution??
Since if u r on lower side any one of them is more than enough.
Also make us available total amps present on your psu's +12v rails
a c 214 U Graphics card
October 15, 2011 1:49:06 PM

Don't go with the 6790.It's a bad thermal design.It consumes 150 watts yet it's not very fast.I would suggest going with a 6850.It's faster and only consumes 120 watts which is better for you and your PSU in the long run.
October 15, 2011 1:57:19 PM

gagan_prakash2009 said:
Also make us available total amps present on your psu's +12v rails


I'm sorry but i'm afraid i don't understand what you mean :o 

I was thinking for the 6790 too, but someone told me that i would need at least a 500W psu for that, but i've googled a little and found out that 450W it's more than enough to keep a 6790 up on my sistem, but then again i was wondering if my cpu is good enough for this card, that's why i wanted to ask you guys...

@purple stank: I'm kinda' on the budget here, as I want to buy a new led monitor too (philips 21.5' led full HD) ... so i think the price for a new video card should not be higher than a 6790 ...
a c 214 U Graphics card
October 15, 2011 2:16:15 PM

The 6850 is only $15 more.It's much much better.Well worth the money,imo.But it's your decision.

Their's a chart on the back of your PSU.We need to know how many amps are on the +12/v rail(s).


October 15, 2011 2:33:40 PM

purple stank said:
Their's a chart on the back of your PSU.We need to know how many amps are on the +12/v rail(s).


+3.3V 20A
+5V 20A
+12V1 18A
+12V2 18A
-12V 0.3A
-5VSB 2.5A

Is this the info you are looking for ? Sorry but when it comes to PSUs, i'm kinda' noob :lol: 
a c 214 U Graphics card
October 15, 2011 2:45:08 PM

Your PSU is capable of deliver around 300+watts on the +12/v rail so it should be enough for the 6790.Just know that you can't crossfire with it.
October 15, 2011 3:12:18 PM

Purchase any card,in this case 6790 is winner & u have no problem regarding cpu it's a decent one capable of handling any mid-range graphic cards
October 16, 2011 1:32:34 PM

Ok. Thanks purple stank , thank you all for your info. I'll go for the 6790. :)  I'm not an addict to play games at high resolutions with outstanding quality, i just want to have a good gaming experience at 1920 x 1080 with no problems, i don't need ultra high game video settings, high will be enough :D 
a c 214 U Graphics card
October 16, 2011 8:03:58 PM

Alright.But I seriously suggest getting some extra money for the 6850 if it's possible.
October 31, 2011 3:39:54 PM

purple stank said:
Alright.But I seriously suggest getting some extra money for the 6850 if it's possible.


I've bought a ASUS HD 6850 and I'm glad I did. This video card is awesome, it's just perfect for what I needed, maybe a little more :bounce:  . Thanks purple stank for being so persuasive.

This video card runs perfectly with a 450W PSU (Sirtec High Power 450W) (for future references)
a c 214 U Graphics card
October 31, 2011 8:31:03 PM

Glad your happy with it.It really is a better choice in every way over the 6790.
!