What is the difference between these tow PSU's?

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The difference is power efficiency, warrenty, the CX series doesn't have fanless mode, the RM preforms under hotter temperatures, and the modular difference.

The 80+ certified means power efficiency rated in bronze, silver, gold and titanium
Basically the higher you go, the more power efficient your PSU, so you consume less power but bring the same preformance, so it will affect your electricity bill, that said the difference between bronze and gold is about 5% efficiency

However if you are looking to buy a PSU I wouldn't buy a corsair Ever, they are a good brand in general but are known for bad PSU's, I'd go with an EVGA Supernova G2 750W PSU instead
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Exeonx

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Jul 5, 2015
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The difference is power efficiency, warrenty, the CX series doesn't have fanless mode, the RM preforms under hotter temperatures, and the modular difference.

The 80+ certified means power efficiency rated in bronze, silver, gold and titanium
Basically the higher you go, the more power efficient your PSU, so you consume less power but bring the same preformance, so it will affect your electricity bill, that said the difference between bronze and gold is about 5% efficiency

However if you are looking to buy a PSU I wouldn't buy a corsair Ever, they are a good brand in general but are known for bad PSU's, I'd go with an EVGA Supernova G2 750W PSU instead
 
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Solution
k1114

k1114

Titan
May 2, 2010
14,240
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The main difference is quality. The rm is much better quality longer lasting components, better build quality, more stable power. The rm can be fanless because of the better efficiency.

Corsair are known for being one of the best in the higher end. There low end like the cx are where you stay away from. Evga is the same. They have some poor stuff I'd say is worse than the cx.
 
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cellblokwlamp

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Aug 26, 2015
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what about the RM series? do you any recommendations in the 500-750 watt range? that i can get at microcenter or frys? id like to keep it below 120USD
 
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Exeonx

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Jul 5, 2015
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http://www.microcenter.com/search/search_results.aspx?Ntt=EVGA+G2+supernova+

Those are my recommendations, all of those are Tier 1 power supplies, and yes i'd avoid low-end EVGA PSU's as well, but mid to high range supernova/superflower models from EVGA are known to be one of the highest quality and yet low priced PSU's on the market, with a wooping 10-year warranty(7-years on the 650/550w models)

If you're tight on budget you get get the 650W model on microcenter for 87$ which is a steal to be honest.
 
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cellblokwlamp

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Aug 26, 2015
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i need 500 watt minimum (as recommended by my EVGA GTX 970 SSC Graphics card) . it wont hurt to have extra power for future upgrades or re-use on new builds.
 
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cellblokwlamp

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Aug 26, 2015
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im not on the tightest budget, but as i said earlier the max i'm willing to pay is $120 minus tax. i also looked at reviews for the $87 psu and it looks to be pretty good. its got enough power, with a little wiggle room for upgrades. and the price is great.
 
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