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Power Consumption Overclocking

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March 13, 2012 1:46:44 AM

I recently installed an MSI GTX 560 Ti Twin Frozr II 2GB, and I know it has high overclocking cababilitys, but I want to know how much extra power it will take when overclocking. I have an XPS 8300 with a 460W PSU. Other components are as follows:
Core i7-2600
2x 500GB hard drives in RAID 0
4 sticks of RAM, 8gb total
The graphics card above.
I basically want an estimate of power consumption so I can know how much I can over clock the graohics card.
March 13, 2012 2:37:56 AM

ill take a stab and say 100 for cpu, 15 per hdd (30), 10 per dimm (40), 20 for disk drive, 20 for mobo, 170 for card sooo thats 380w total by my shady calculations. That leave 80w for ocing which I think means you can do a (250/170*100%)/2=23% oc? I don't know why I thinks that works but i think thats roughly it. Assuming u have a high enough amperage on your psu
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March 13, 2012 3:01:10 AM

The DELL PSU won't be able to handle a large OC on that 560 TI. Maybe not even a minimal OC.

DELL gives you exactly as much PSU as you need for the base system. Most of the time you can't upgrade any hardware without also upgrading the PSU.

With OCing, you should figure about 2% more power usage for 1% performance gain. If you could manage to get 40% more performance out of it, you would be looking at 80% more power usage to get there.

Under serious strain, iirc, the 560 TI is a 225w card, which is going to be high 300s with a 40% OC.

- Edit - In case you need a suggestion of a real PSU, I would go for XFX Pro 750w Core.
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March 13, 2012 3:10:45 AM

This review overclocked a 560 (not ti) pretty hard and got.... http://www.legitreviews.com/article/1679/15/

"That max overclock does not come cheap from a power draw perspective. Our power consumption went up 48 Watts on our system in order to support our higher speeds and a whopping 59 Watts during the extreme FurMark 1.9.1 test."


So adding 50 watts for OC'ing video is about right. (the 560ti is actually close to a 570 than a 560 from power consumption, but i couldn't find a 570 ref. maybe you can.)

But, drop $20 and get a kill-a-watt meter. http://www.amazon.com/P3-International-P4400-Electricit... Then take your readings at the PC's wall plug and discount them to 80% to factor in PSU efficiency. You'll see you are not close to the limit, even OC'd.

Aside: I use an i7-920, x58 based system with a GTX260 OC'd. The i7-920 uses more power than an i7-2600, the x58 uses more power than any MB chipset, The GTX260 uses 12 more watts than a 560ti at stock frequency, and I use a mild OC, have 2 disks in raid0, and still never see more than 300 watts measured at my APC ups. Works with the 460w PSU in my system (hp OEM bustec psu).
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March 13, 2012 12:53:05 PM

matter37 said:
I recently installed an MSI GTX 560 Ti Twin Frozr II 2GB, and I know it has high overclocking cababilitys, but I want to know how much extra power it will take when overclocking. I have an XPS 8300 with a 460W PSU. Other components are as follows:
Core i7-2600
2x 500GB hard drives in RAID 0
4 sticks of RAM, 8gb total
The graphics card above.
I basically want an estimate of power consumption so I can know how much I can over clock the graohics card.

About 20 watts
http://ht4u.net/reviews/2011/nvidia_geforce_gtx_560_ti_...
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March 20, 2012 1:30:09 AM

Best answer selected by matter37.
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