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Radeon HD 7770...Wattage?

Last response: in Graphics & Displays
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December 31, 2012 10:30:47 PM

Hey everyone I just got a MSI radeon HD 7770 OC edition video card on sale for $90

I currently have a prebuilt system with a 250W PSU

My uncle has a new system for me with a full tower case, 430W PSU, intel dual core...etc.

how much wattage will this card use in my current system?

I have a 500GB 7200 RPM HDD

a Anthlon x2 215 2.7GHZ cpu dual core
No case fans
an old Narra 5 Mobo
and currently using a 8500 GT video card (I haven't installed the 7770)

So is my 250 wattage PSU good enough to use for part time till I get my newer power supply?
Here is my current PC:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

More about : radeon 7770 wattage

December 31, 2012 10:58:39 PM

anyone? :[
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a b U Graphics card
December 31, 2012 11:11:36 PM

Hi. Just from looking at the pictures of the inside I doubt you even have enough unused cables for the card let alone enough power. I'm guessing you'll be upgrading to the new system from you uncle? If so (I'm going to guess it's the Corsair CX430), you'll be able to power your new rig with that card.
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December 31, 2012 11:23:09 PM

johnsonjohnson said:
Hi. Just from looking at the pictures of the inside I doubt you even have enough unused cables for the card let alone enough power. I'm guessing you'll be upgrading to the new system from you uncle? If so (I'm going to guess it's the Corsair CX430), you'll be able to power your new rig with that card.


Yeah i'm upgrading the new system from my uncle tomorrow. The PSU is this thermaltake one:
http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...
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a c 358 U Graphics card
December 31, 2012 11:31:24 PM

The radeon HD 7770 consumes about 73w peak power and I believe it's typical max is about 66w.

Your current system with the 250w PSU is way under powered for it, but the PC you are getting from your uncle with the 430w PSU should be fine. The thing is Thermaltake PSUs are at best average quality, but as long as you do not push the PSU too hard you should be fine. The Radeon HD 7770 should still be alright. But if you were to install a graphics card that consumes over 110w of power, then I would recommend the Thermaltake be replaced.

High end ($90+) Thermaltake PSU are generally of good quality.
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a b U Graphics card
December 31, 2012 11:33:38 PM

I was afraid it might be Thermaltake. Well at least it has a 6-pin PCI-E connector and overload protection but it an outdated PSU that can't deliver anywhere near 430W. If you have money to spend, I recommend replacing that PSU. Here's a review of it:

http://www.hardwaresecrets.com/article/Thermaltake-Pure...
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January 1, 2013 12:47:23 AM

hmm..well i did a power wattage calculation with this:
http://extreme.outervision.com/psucalculatorlite.jsp

According to that (and Im pretty sure that I calculated correctly)
The max load of my new build will be around 250-270W So even if the powersupply is 350W it'll be fine i suppose. I will upgrade the PSU in the near future. Thanks to everyone who replied.
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a b U Graphics card
January 1, 2013 12:52:31 AM

Good luck with your new build then. The CX430 is a good budget PSU or CX500 if you need more for future upgrades.
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