What is the difference between ?

[KeimiOne]

Hello

I want ask what is the difference between Corsair HX750i 750W and Corsair RMx Series RM750x 750W ?

Thank you.

 

[raisonjohn]

Hello

I want ask what is the difference between Corsair HX750i 750W and Corsair RMx Series RM750x 750W ?

Thank you.

The main differences between two good-quality Corsair PSUs, the HX750i (CP-9020072) and the RM750x (CP-9020092) are the following:

HX750i has CorsairLink (Software for monitoring/controlling PSU via USB2.0) | RM750x has none
HX750i has a Fan Test Button | RM750x has none
HX750i has 5x sockets for PCIE/CPU cables | RM750x has 3x sockets for PCIE/CPU cables
HX750i has 5x sockets for SATA/Periph. cables | RM750x has 4x sockets for SATA/Periph. cables
HX750i has 2x CPU (ATX12V) 4+4 pin cables | RM750x has 1x CPU (ATX12V) 4+4 pin cable
HX750i has 3x PCIE 6+2 pin cables (w/ 2 connectors ea.) | RM750x has 2x PCIE 6+2 pin cables (w/ 2 connectors ea.)
HX750i has 3x SATA cables (w/ 4 connectors ea.) | RM750x has 3x SATA cables (w/ 3 connectors ea.)
HX750i has 2x FDD cables | RM750x has 1x FDD cable
HX750i has better efficiency in load tests (~90%), hence, the 80+ Platinum | RM750x has slightly lower efficiency in load tests (~88%), hence, the 80+ Gold
HX750i uses the Corsair NR135P (135mm Fluid Dynamic Bearing Fan) | RM750x uses the Corsair NR135L (135mm Low-Noise Rifle Bearing Fan)
HX750i produces slightly higher noise levels at 50% load (~12dBA) | RM750x produces slightly lower noise levels at 50% load (~8dBA)
HX750i produces lower noise levels at 100% load due to fan's 950rpm max. speed (~20dBA) | RM750x produces higher noise levels at 100% load due to fan's 1,350rpm max. speed (~25dBA)
HX750i has a Blue+White colored sticker label | RM750x has a Gray+White sticker label
HX750i is expensive at $160 (Amazon) | RM750x is more affordable at $100 (Amazon)

More info here:
HX750i: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=392
RM750x: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=452

I'd recommend getting the RMx for better price/performance than the HXi.