For 660/760 SLI you could do it with a silver/gold rated 600+ watt PSU, for 770 SLI I'd recommend 700watts or greater. And for a single 780ti, you'd be fine with a quality 500w PSU to be honest.
For any of those combinations, a good quality 750W (or better) PSU would be recommended. You may get by with less, but you would loose some headroom. What CPU would they be paired with?
For any of those combinations, a good quality 750W (or better) PSU would be recommended. You may get by with less, but you would loose some headroom. What CPU would they be paired with?
For 660/760 SLI you could do it with a silver/gold rated 600+ watt PSU, for 770 SLI I'd recommend 700watts or greater. And for a single 780ti, you'd be fine with a quality 500w PSU to be honest.
For 660/760 SLI you could do it with a silver/gold rated 600+ watt PSU, for 770 SLI I'd recommend 700watts or greater. And for a single 780ti, you'd be fine with a quality 500w PSU to be honest.