450W PSU - R9 270x?

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Farzana Roomy

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Oct 22, 2014
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Ive got an antec VP450(tier two) PSU, and i want to buy an r9 270x GPU.. I just want to know whether there wud be any problems here. I know any serious overclocking is impossible, but I dont think im going to do serious OC, maybe some mild tweaks here and there, but nothing serious.

And also, Ive got 2GB of RAM, and Im getting 4 more(6gb total then) by February/January hopefully. Will there be any problems running the R9 270x on 2gb of RAM? I know I wouldnt be able to run most games with this RAM, but thats only until January hopefully :) My main question - would there be any problems like stuff burning up or stuff like that? cos i dont want to harm my PCs components! (The second question applies to an EVGA GTX 750TI also)
 
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Abmario
Graphics card manufacturers always recommends higher power requirements for other references and considerations, like putting some margins for their products... Nothing wrong with that... However,

It's nice that some manufacturers are now including advice on power requirements on their products, but that doesn't mean you should take this information at face value.

Logically (listen to your instinct) a GTX750ti draws power only from motherboard pcie slot (slot can only supply max. 75w), means 750ti would not just go more than that?

Even AMD R9-270x performance is not so powerful card compare to R9-280x or R9-290... Here are some reviews of actual power readings and gone through details.. Note: Total system wattage at idle...
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Abmario

Abmario

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Oct 1, 2014
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Rhe R9-270x draws power up to 180w to 280w on intensive graphics gaming.. It should be fine if you are not into overclocking..

the R9-270x is better than GTX750ti in performance but has advantages in other features, 750ti draws power from motherboard pcei slot which has max 75w, means GTX750ti will not go over 75w... this for sure your psu is sufficient enough on this set up
 
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pierrerock

pierrerock

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Keep in mind running this card on a 450 W PSU will probably take as much juice out of this PSU as it can deliver which means heat will be a thing.

it highly depend of your CPU there. at max, A R9 270x will draw around 300 W

59869.png


What is your CPU and do you have any other PCIE component installed in there ?
 
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Farzana Roomy

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Oct 22, 2014
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the gpu im buying will depend on the price it is in december.. im not planning for serious OC, but there would be some OC, maybe a very very little.. and No, i dont have any other PCIE stuff installed. And, Can you answer my other question too? Would there be a problem running the R9 270X/GTX 750ti on 2gigs of RAM? my friends said my RAM would burn out or something, but then, theyre always kidding around.. :)

MY PC -
Intel 2nd Gen core i3 2100
 
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Mousemonkey

Mousemonkey

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That chart shows the TOTAL system usage, the 270x is rated as a 180w part not 300w.

http://www.anandtech.com/show/7503/the-amd-radeon-r9-270x-270-review-feat-asus-his
 
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pierrerock

pierrerock

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yeah but if he would have a FX 8 core CPU the value would be much higher than what this chart gives.

A GPU doesn't even know how much RAM your CPU has. A GPU has it's very own VRAM ( GDDR5 2GB for both model you mentionned)

So no, there is no problem with your RAM. There is not enough for your CPU to run big games, but nothing will burn ! your friends were either kidding or missing knowledge.
 
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Libero

Libero

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Your recommended PSU wattage for whole system include R9 270X is at 500W. For GTX 750 Ti is at 400W.
PSU Requirements
 
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gopher1369

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Nope, the 8 core FX processors have a lower TDP than the processor used to create this chart (125 Watts AMD FX Vs 130 Watts Intel Core i7-4960X )
 
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Abmario

Abmario

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Oct 1, 2014
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Graphics card manufacturers always recommends higher power requirements for other references and considerations, like putting some margins for their products... Nothing wrong with that... However,

It's nice that some manufacturers are now including advice on power requirements on their products, but that doesn't mean you should take this information at face value.

Logically (listen to your instinct) a GTX750ti draws power only from motherboard pcie slot (slot can only supply max. 75w), means 750ti would not just go more than that?

Even AMD R9-270x performance is not so powerful card compare to R9-280x or R9-290... Here are some reviews of actual power readings and gone through details.. Note: Total system wattage at idle "without video card" is 95W.
http://www.hardocp.com/article/2014/03/10/amd_radeon_r9_270x_270_video_card_review/11#.VFI4kjSUfVo

If your system is running at peak with not good quality psu, particularly with those low quality caps, may degrade over time... (but yours is tier two)

Here are Load tests and Overload test for Antec VP450W (PASSED all the tests!); Look how it performs, temp vs max load on each test and how about the Overload test (123% max load)...
http://www.hardwaresecrets.com/article/Antec-VP450-Power-Supply-Review/1487/7

On this I would say, your psu can handle any of those cards..
 
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