Power supply and GPU performance

Seeyou

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I have a Gtx 780Ti, i5 2500K, 16gb ram and a 750w CoolerMaster PSU. I bought the graphics card to be able to game at my monitor's native resolution, which is 2560x1440. It performs well enough, but I've always had the feeling it should be running faster. I've recently started playing DA: Inquisition, and had to ratchet down the quality settings from ultra, to high and then started disabling various features as the frame rate was still pretty shoddy.

I took out my old backup LED monitor which runs at full HD and tried it instead. It obviously runs faster, but still seems like at that resolution it should be running at a solid 60fps, but I still notice frame rate drops pretty often.

Coincidentally, I was recently looking at my UPS manual (thanks eskom!) and I happened to notice the maximum rated power output for the UPS is 390w.

My question is, is it possible that the GPU isn't getting enough power because of the UPS, and under performing because of it, or would the card not run at all if this were the case?

Obviously I could just plug the pc directly into the mains and see if anything changes, but I wanted to know if this was even possible first.

Thanks in advance!
 
I have a Gtx 780Ti, i5 2500K, 16gb ram and a 750w CoolerMaster PSU. I bought the graphics card to be able to game at my monitor's native resolution, which is 2560x1440. It performs well enough, but I've always had the feeling it should be running faster. I've recently started playing DA: Inquisition, and had to ratchet down the quality settings from ultra, to high and then started disabling various features as the frame rate was still pretty shoddy.

I took out my old backup LED monitor which runs at full HD and tried it instead. It obviously runs faster, but still seems like at that resolution it should be running at a solid 60fps, but I still notice frame rate drops pretty often.

Coincidentally, I was recently looking at my UPS manual (thanks eskom!) and I happened to notice the maximum rated power output for the UPS is 390w.

My question is, is it possible that the GPU isn't getting enough power because of the UPS, and under performing because of it, or would the card not run at all if this were the case?

Obviously I could just plug the pc directly into the mains and see if anything changes, but I wanted to know if this was even possible first.

Thanks in advance!

If your pc as a whole wasn't getting enough juice you'd see more issues than just FPS drops in Dragon Age.

The problem is dragon age. Never buy EA/Ubisoft games new. They need plenty of patches first.
 
If your pc as a whole wasn't getting enough juice you'd see more issues than just FPS drops in Dragon Age.

The problem is dragon age. Never buy EA/Ubisoft games new. They need plenty of patches first.

lol, this pretty much sums it up.
 
Watch Dogs running pretty good though when you meet the requirements. Assassins Creed on the other hand.

Horribly optimized games, CPU decent but might be holding you back just a little, and because well Dragon Age is horribly optimized. Just see how well GTX970 sli does with that game.
 
Watch Dogs running pretty good though when you meet the requirements. Assassins Creed on the other hand.

Horribly optimized games, CPU decent but might be holding you back just a little, and because well Dragon Age is horribly optimized. Just see how well GTX970 sli does with that game.

Also 2560x1440 is a pretty big resolution.
 
Coincidentally, I was recently looking at my UPS manual (thanks eskom!) and I happened to notice the maximum rated power output for the UPS is 390w.

My question is, is it possible that the GPU isn't getting enough power because of the UPS, and under performing because of it, or would the card not run at all if this were the case?

Obviously I could just plug the pc directly into the mains and see if anything changes, but I wanted to know if this was even possible first.

Thanks in advance!

If you have a line interactive UPS (which 99.999% of cheap ones are), then your pc will be running off mains power, and not hampered in any way by the UPS. The UPS limit of 300W would only kick in when the power fails.
 
Good points all round :)

@mister - you learn something new every day - thanks for the info :)
 
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