This is a quiet PSU. The difference between it and the 650 P2 is so small as to be imperceptible. Efficiency Rating The RM650x easily meets the ErP Lot 6 2013 directive's requirements. Fan RPM, Delta Temperature And Output Noise

Archangel (Desktop) CPU: i5 4590 GPU: Asus R9 280 3GB RAM: HyperX Beast 2x4GB PSU: SeaSonic S12G 750W Mobo: GA-H97m-HD3 Case: CM Silencio 650 Storage: 1 TB WD Red I'm glad the new RM series is much higher quality. All I remember Corsair having is a bunch of bad PSUs with select few good PSU (like AX and HX). PSU calculator recommends 590w (I overcompensated for everything, including some crazy OC's), so not fussed about extra 100w (unless I should be?). The review here just made this unit be one of my recommended 650 models, tied with the EVGA G2/P2 and just below the Seasonic 660XP2! said:for all the good listed in this article, this series of psu just gets bashed in the fourms, just interesting.The Cybenetics organization measures efficiency and noise levels across the PSU’s entire operational range, using more than 1,450 different load combinations. Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards. Aftermarket 980Ti>= Fury X>= Reference 980Ti> Fury> 980> 390X> 390>= 970 > 380X > 380>= 960> 950 >= 370 > 750Ti = 360 Primary side: Half-Bridge & LLC converter Secondary side: Synchronous Rectification & DC-DC converters

Primary side: Half-Bridge & LLC Resonant Converter Secondary side: Synchronous Rectification & DC-DC converters Fun fact: Removing the caps from the cables saved A LOT of money. As you can see, it didn't have much impact. The caps in the cables in other models are only there to appease reviewers (like Aris) that compare ripple from one model to the next within mV of each other. Seraph (Laptop 2) CPU: i7 6700HQ GPU: GTX 970M 3GB RAM: 2x8GB DDR4 Storage: 256GB Samsung 951 + 1TB Toshiba HDD Model: Asus GL502VT Electrolytics: 7x Elite (2-5,000h @ 105°C, EK), 1x Elite (4-10,000h @ 105°C, EY), 1x Elite (2,000h @ 105°C, PF), 2x Su'scon (2-5,000h @ 105°C, MF), 3x Su'scon (4-10,000h @ 105°C, HG) Polymers: Suncon, Elite, NIC Only info I found online was quite a few people saying to "avoid the RM750 as it's a "Tier 3" psu... Whatever that means... They are both Gold rated??Celestial (Laptop 1) CPU: i7 4720HQ GPU: GTX 860M 4GB RAM: 2x4GB SK Hynix DDR3 Storage: 250GB 850 EVO Model: Lenovo Y50-70 Aris_Mp said:Thank you Jon for the explanation on why the price had to drop so little compared to the RMx. Not sure what you mean. EVGA has a couple of 80 Plus Titanium models but Seasonic has Titanium models in their new lineup. I'm not sure if those new Seasonic models are available yet though. Other than that I've had an 80 Plus Platinum Seasonic ( 660XP2 ) for a couple of years and their Platinum line has been out since at least 2011. Thank you Jon for the explanation on why the price had to drop so little compared to the RMx. Every time there is an ATX change, the production cost goes higher :(