650W Psu for overclock 4690k and r9 290

McNoxey

Reputable
Aug 1, 2014
20
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4,510
Hi all,

I'm looking to get a power supply for my system. Here's my build:

http://pcpartpicker.com/p/nhH7sY

I'm looking at getting this PSU:
http://www.canadacomputers.com/product_info.php?cPath=33_1238_443&item_id=072019

I don't plan on cross firing, so I know I can get away with a lower PSU. i'm just wondering if 650 is enough to power an overclock i5 4690k and an overclocked r9 290 with water cooling.

I can get a 750 for $10 more, however it's got a horrendous handle that sticks out the back of the case. I also know it won't be enough to xfire anyway, so it may be overkill now.
 
Solution


then G2 750w is your best option from EVGA

Price breakdown by merchant: http://ca.pcpartpicker.com/p/tQtjGX/by_merchant/
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX)
Total: $99.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-15 12:24 EDT-0400
Price breakdown by merchant: http://ca.pcpartpicker.com/p/3yygQ7/by_merchant/
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($82.99 @ Canada Computers)
Total: $82.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-15 12:10 EDT-0400

650w is plenty for your setup however i suggest this new B2 model, better quality than the nex model! an quality unit like this one will handle even an crossfire setup!

http://www.guru3d.com/articles-pages/radeon-r9-290-crossfire-review-benchmarks,4.html
intel 6core 4.6ghz / 2x R9 290
System in IDLE = 130W
System Wattage with GPU in FULL Stress ~ 603W
 


then G2 750w is your best option from EVGA

Price breakdown by merchant: http://ca.pcpartpicker.com/p/tQtjGX/by_merchant/
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX)
Total: $99.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-15 12:24 EDT-0400
 
Solution


That's FSP made, it was discontinued for the newer G1. This is the one you'll want IMO:

EVGA Supernova G2 750W: http://ca.pcpartpicker.com/part/evga-power-supply-220g20750xr

9.8/10
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=380
 
Those solutions are significantly more expensive. Which is why I'm trying to see if the 650 will power a strongly over clocked system. If it won't, I'll get the other 750 I listed as it's only 79.99
 


semi and full modular isnt that different since you will have to use 20+4pin mobo and 4+4pin cpu power cables! i would prefer the better quality! B2 with the similar price! i wouldnt suggest Nex750g for crossfire! for just one gpu, its ok though!
 


It's reduced to clear the stock, as it's a discontinued item.
http://www.techpowerup.com/reviews/EVGA/NEX750G/11.html

The B2 should be better (no official reviews out yet sadly), as it has a better manufacturer behind it, one of the best in Super Flower, comparable to Seasonic. That would be the company i'd rather take a gamble on.

It's up to you, your money.