PSU comparison! Help me what is better choose

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Oct 31, 2014
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I have 2pcs PSU Corsair RM850 and Corsair AX760i

What is better and heavy duty PSU
Corsair RM850
or
Corsair AX760i
Help me what is better choose!

My Computer Spec:
CPU: i7 4790k OC @ 4.6Ghz
Mobo: Sabertooth mark 1 z97
GPU: Singel Card Asus Strix 970
Corsair h100i Ram: Corsair Dominator Platinum 4x4 1866mhz
Samsung Pro 126GB
HDD: 1T Seagate
Case: Corsair 760T Full tower Case Black

Monitor: ASUS VG248QE 24inch 144hz
Mouse and Keybord: Razer taipan/ Razer blackwidow 2014
Speaker Logitect
 
Solution
If you do get the Corsair the AXi is best for sure. It is a difference of Tier 1 vs Tier 3.
You will only need 650w for your system. Even overclocked :)

This PSU is probably your best bet and cheapest,
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA GS 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($59.99 @ NCIX US)
Total: $59.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-05 23:35 EDT-0400

If you plan to SLI this is best:
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.99 @...
If you do get the Corsair the AXi is best for sure. It is a difference of Tier 1 vs Tier 3.
You will only need 650w for your system. Even overclocked :)

This PSU is probably your best bet and cheapest,
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA GS 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($59.99 @ NCIX US)
Total: $59.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-05 23:35 EDT-0400

If you plan to SLI this is best:
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($84.99 @ NCIX US)
Total: $84.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-05 23:36 EDT-0400
 
Solution

mastrom101

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Jun 12, 2010
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IntelTurtleFan is correct. Both of the PSUs you mentioned are excellent, but the AXi is definitely better. I wouldn't go as far as saying tier 1 to tier 3, but the AX is definitely a better bet. If you don't plan to use SLI in the future, 650 watts should be good. If you do want to add another card later, I would look for at least 750 watts, but preferably 800 watts or more.