i'm getting a second gtx 770 for sli do i need get new psu. my psu is RM Series™ RM750w

mohamed8989

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i'm getting a second gtx 770 for sli do i need get new psu my psu is RM Series™ RM750w
so GTX 770 2GB can it handle 1920x1080 at max settings for games like crysis 3,battlefield 4,witcher 3,wolfenstein the new order,arma 3,titanfall. between 100 to 144 fps or do i need to get sli

my rig
1 INTEL CORE I7 -4770K
2 GIGABYTE GTX 770 2GB DDR5 OVERCLOKED EXTREME
3 RM Series™ RM750 — 750 Watt 80 PLUS® Gold Certified Fully Modular PSU
4 CORSAIR HYDRO SERIES H100I HIGH PERFOMANCE LIQUID CPU COOLER
5 GIGABYTE GA-Z87X UD4H SOCKET 1150 PROCESSOR 4TH GENERATION MOTHERBOARD
8 WINDOWS 8.1 PRO
9 G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL10D-16GBXL
10 CASE(Cooler Master Storm Trooper Case )
12 WESTERN DIGITAL 1 TB SATA 7200RPM 64MB CACHE INTERNAL DESKTOP HARDDRIVE BLACK WD1003FZEX
 
Solution
I often contradict people with this,but imo will you be fine with that psu,750watts is more than enough for sli of the gtx 770.
just try it with this one before spending such a load of money on something else.

mohamed8989

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Isn't Corsair a good manufacturer
 
Your PSU is tier 3, and not recommended for heavy loads. I'd instead get one from the ones i7 recommended. Your SLI setup should get atleast 650W supply all the time for it to function correctly, don't expect that from your PSU, more than 75% load and the weak links (LTEC capacitors) will be exposed. Atleast a good 850W Tier 2 is recommended in such setups.

Reference: http://www.tomshardware.co.uk/answers/id-1804779/power-supply-unit-tier-list.html
 


Corsair is not a manufacturer. They sell what someone else makes. Their good ones are made by Seasonic. Same with XFX and Antec.

 

mohamed8989

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i want to get xl2420z benq i know i will not reach 100fps but in future i might get new gbu so in 60 fps the monitor is it good and can i play fps games in 120 fps if i lower the setting and leave it
in 1920x1080