auxy wrote:I'm sure you mean GTX 650 Ti BOOST, not 550. The one that TechReport did a review over recently?
Star Brood wrote:The 650 Ti Boost is about 150W, the 7850 about 130W, and the 7790 about 90W.
DPete27 wrote:Star Brood wrote:The 650 Ti Boost is about 150W, the 7850 about 130W, and the 7790 about 90W.
If you can't figure out how to select your system components from drop-down lists on a power supply calculator you can always head over to the power, temperature, and noise page of any TR GPU article for a rough estimate, then multiply that by ~2x for recommended PSU wattage. Keep in mind what the test rig consists of compared to what you have.
Using your system in a PSU calculator I'm getting a recommended 400W PSU. Those recommendations are based on ~50% PSU load at 90% system usage for max efficiency and some allowable headroom. I don't think I'd trust your current PSU much further than a GTX660 or GTX650 Ti Boost (both use about the same power).
From what I've seen, good sale prices for GPUs (after MIR) are: GTX 660 = $180, 7850 2GB = $170, GTX 650 Ti Boost = $155, 7790 = $120. At those prices, all the aforementioned GPUs are on roughly the same plane of price/performance (ignoring the subjective value of game bundles). Keep in mind, just because a 7790 can "only" play almost every game at 1080p on high settings cranking out ~50fps doesn't mean it won't kick the pants off your current GT620. It's all a matter of budget. Also, newegg.com reviews won't lead you astray. I would steer clear of any card that has a 3-egg rating or lower.
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