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Wattage of graphic card and psu

Last response: in Graphics & Displays
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I know that you guys are probably mad at me, because this question appears everywhere on internet! But yust to be sure! I have max 300W psu and I have to buy a new graphic card. I have this in my mind:
ATI radeon 5450 1GB, but recomendations says taht I need at least 400W psu! I've heard alot about AMD overstating the power requirements of their lower-end cards. My old graphic card:

ATI radeon HD 2350:
http://www.game-debate.com/hardware/index.php?gid=391&g...


ATI radeon HD 5450:
http://www.game-debate.com/hardware/index.php?gid=411&g...

5450 uses yust 1 wat less than 2350!!!! :o  WTF Where's point?
I have intel core due 2.4Ghz, 2 sticks of 1GB DDR2 ram.
I would like to finish this topic once and for all... TNX

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Graphics card Expert

I would be safe and run with 500watts of power, you cant go wrong with that, whats your budget for a PSU I bet we can find you some nice ones to fit your budget.
(Radeons have tendenct to suckup more power than NVIDIA so a 500W should be fine)

http://www.newegg.com/Product/Product.aspx?Item=N82E168... only 20$

http://www.amazon.com/dp/B000LM7PCS/?tag=pcpapi-20 -24$

http://www.amazon.com/dp/B000TYN2PC/?tag=pcpapi-20 38$

Good Luck!

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Graphics card Authority

The 5450 only draws like 20 watts max. I dont know what you have for a CPU but the most it could possibly draw is like 125 watts, throw in the board, drives and fans and stuff, and your at 150-175 max draw. Now add in the 5450 and your still below 200 watts.

I would not waist time on the PSU upgrade.

On a side note the 6450 only costs about $10 more uses only about 18 watts of power and is a good bit faster. I would grab one of those if you can.
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You have no reason to upgrade your power supply for that card. It has no PCIe 6- or 8-pin connectors, thus it will be powered through the connector on your motherboard. 300 watts is more than enough to run the card with that system.
Graphics card Authority

Dude i dont know where you got those numbers???
5450 draws 20 watts at 12 volts.
20watt / 12volts X 1.66amps.

Its your money, new stuff is always fun to install, and hey fun is what its all about!
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