You can but you probably shouldn't. If u wanna overclock your GPU you should get a tier 2 power supply.
Here are some PSU tier list of 1 and 2
tier 2Andyson
Platinum-R 850 / 1200 Andyson
Titanium N 700w Andyson
Antec
EDGE Seasonic
Earthwatts Delta Electronics/ Earthwatts Platinum FSP
High Current Gamer Delta Electronics (Non-Modular) / Seasonic (Semi-Modular)
Truepower Classic Seasonic (Essentially a Non-Modular version of the EDGE series)
Azza Platinum Super Flower
Be Quiet Straight Power 10 FSP
Cooler Master VS Series Enhance
Corsair RM 850w Channel Well Technology
Cyonic AU-550X / 650X Seasonic
Enermax Platimax Enermax
EVGA Supernova B2 Super Flower
Firepower
Silencer MK III 400 500 600 / 750 850 Super Flower
ZX Great Wall
Fractal Design Edison M Seasonic
High Power / Sirfa Astro GD Sirfa
Rosewill
Capstone series Super Flower
Lightning series Super Flower
Quark 1000w Enhance
Silent Night 500 Watts Super Flower
Tachyon series Super Flower
Seasonic
G series / G series V2 Seasonic
M12-II EVO (fully modular) Seasonic
S12G (Think of 2011 - 2013 Seasonic G series) Seasonic
S12-II Seasonic
SilentumPC Supremo M1 Gold 550w Sirfa
Silverpower
SP 460w Fully Modular Seasonic
SP Semi-modular Seasonic
Silverstone
Strider Gold Evolution Enhance
Strider Plus 750w 850w 1000w 600w Enhance
SFX-G / SFX-LG SX-G = Enhance / SFX-LG = High Power / Sirfa
Super Flower Golden Green / Modular / HX series Super Flower
Sentey Golden Steel Power 850 Watts Super Flower
Thermaltake
Toughpower Gold 850M Enhance
Toughpower Grand 1200F High Power / Sirfa
Toughpower Grand Platinum 850w 1200w Enhance
Toughpower DPS Gold Channel Well Technology
XFX
TS 430w / 550w-SEW Seasonic
XTR series Seasonic
Tier 1Antec High Current Pro Platinum Delta Electronics
Be Quiet
Dark Power Pro P10 / 850w FSP (550w - 750w) / Seasonic (850w - 1200w)
Dark Power Pro P11 850w FSP
Corsair
AX / AXi series 760w - 1200w Seasonic (AX) / Flextronics (AXi)
AX1500i Flextronics
HXi Channel Well Technology
RMi Channel Well Technology
RM1000x Channel Well Technology
Cooler Master V series / V series 1200w Seasonic
EVGA
SuperNova G2 / P2 / T2 Super Flower
Supernova GS Seasonic
Supernova GQ FSP
Supernova PS Seasonic
Enermax DigiFanless 500w Channel Well Technology
Firepower Silencer MK3 1200w Super Flower
FSP
Aurum PT FSP
Hydro G FSP
LEPA G1600 Enermax
Seasonic
Platinum series Seasonic
Snow Silent 1050w Seasonic
X series / X series XM2 Seasonic
Silverstone Nightjar Platinum 520w Seasonic
Super Flower
Leadex Gold / Platinum / Titanium Super Flower
Golden King Super Flower
Golden Silent / 430w Super Flower
Thermaltake
ToughPower DPS-G RGB 1250w Channel Well Technology
Toughpower DPS-G Platinum 1050w Enhance Electronics
XFX
Pro series Black edition Seasonic
Pro series Black edition Limited Edition 1000w Seasonic
Pro series XXX / Semi-Modular Seasonic
XTS Fanless Seasonic