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Do I need a new PSU for GTX 780TI?

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  • Gtx
  • Power Supplies
  • Hard Drives
  • Systems
Last response: in Systems
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August 26, 2014 8:18:22 AM

Hello people,
I'm planning to buy the GTX 780TI (probably EVGA OC ACX), however I'm not sure if my current PSU can handle it.

My current build is:
PSU - Corsair 500W

CPU - i5-3570K (+ 3rd party cooler)
M/B - Z77 Pro3
GPU - HD 7870 (Club 3d Jokercard + 3rd party cooler)
RAM - G.Skill Ares Series 2x8 GB
HDD - 500 GB and 2 TB HDD (both 7200 rpm, if that matters)

PCI
- Two optical drives (nothing special)
- WLAN PCI card

I understood that (under load) the 7870 draws about 180W and the GTX 780 TI 260W.
Right now everything works fine (not entirely true but that has nothing to do with the PSU). Do you think I need more than my current 500W if I swap the HD7870 with the GTX780?
If so, does 700W suffice?

Thanks

More about : psu gtx 780ti

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August 26, 2014 8:24:41 AM

Yes you will be needing at least 600W PSU, would recommend 620W from seasonic of xfx/rosewill/evga 700W+
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August 26, 2014 8:29:28 AM

Proofy said:
Yes you will be needing at least 600W PSU, would recommend 620W from seasonic of xfx/rosewill/evga 700W+


Thanks for the quick reply! I think I'll be getting the Cooler Master G700, not sure yet.
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August 26, 2014 8:45:09 AM

I wouldn't go with the cooler master G series (or the Corsair CX for that matter) on a gtx 780 ti. Try to grab a good quality PSU for a GPU like that. Here are some I would recommend:

Power Supply: XFX 650W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)

Power Supply: SeaSonic 620W 80+ Bronze Certified Fully-Modular ATX Power Supply ($69.99 @ Newegg)

The Seasonic is actually a really good deal for a fully modular good quality PSU.
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August 26, 2014 9:06:56 AM

numanator said:
I wouldn't go with the cooler master G series (or the Corsair CX for that matter) on a gtx 780 ti. Try to grab a good quality PSU for a GPU like that. Here are some I would recommend:

Power Supply: XFX 650W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)

Power Supply: SeaSonic 620W 80+ Bronze Certified Fully-Modular ATX Power Supply ($69.99 @ Newegg)

The Seasonic is actually a really good deal for a fully modular good quality PSU.


Thanks, I'll look in to it.
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