Overclock.net › Forums › Components › Power Supplies › 750W or 850W?
New Posts  All Forums:Forum Nav:

750W or 850W?

post #1 of 10
Thread Starter 
Hey,

I'm new to this website so i;m not 100% sure this is the right place to post.
But I'm building a computer in a few weeks and was wondering what PSU wattage i would need. The parts are:

GTX 580 Lightning
ASRock Z68 Extreme3 Gen3 Motherboard
Intel 2500k (I might overclock in the future)
Noctua NH-D14 CPU Cooler
8 or 16GB G.Skill Ripjaw X (Not sure what i need for gaming?)
Any help would be appreciated

Thanks
post #2 of 10
Welcome to OCN!

Either would be suitable really, but to get a better idea take a look at this and this.

For gaming, 8gb is all you'll need.
post #3 of 10
Quote:
Originally Posted by x-Parabola-y View Post
Hey,

I'm new to this website so i;m not 100% sure this is the right place to post.
But I'm building a computer in a few weeks and was wondering what PSU wattage i would need. The parts are:

GTX 580 Lightning
ASRock Z68 Extreme3 Gen3 Motherboard
Intel 2500k (I might overclock in the future)
Noctua NH-D14 CPU Cooler
8 or 16GB G.Skill Ripjaw X (Not sure what i need for gaming?)
Any help would be appreciated

Thanks
An excellent 550/600W unit or a solid 650W unit, name your budget and the place/s you intend to buy it from so you'll get the best suggestions.

As far as ram goes, few games can use more than 4GB, and there are no games at the moment that use even 8GB, so 16GB is a waste unless you work in Photoshop or other ram heavy applications.

ps. excellent component choice, you might want to add an SSD to that too
post #4 of 10
Also if you ever want to go SLI with another 580 an 850w PSU would leave more wiggle room.
Ada
(24 items)
 
Aegis
(9 items)
 
 
CPUMotherboardGraphicsRAM
AMD 1700 Gigabyte AB350 Gaming 3 EVGA GTX 980 ti Classified F4-3600C16D-16GTZ @3200 
Hard DriveHard DriveHard DriveHard Drive
Intel 520 120GB SSD Samsung F2 1TB X2 Samsung F4 2TB Hitachi 1TB X2 
Hard DriveOptical DriveCoolingCooling
Seagate 3 TB Pioneer BDR 2207 Noctua NH D14 Sunbeam Rheobus Extreme 
CoolingOSMonitorMonitor
Enermax 140mm T.B. Vegas Duo x2 Win 10 Pro Extreme Edition Catleap 2B  ASUS VH242H  
KeyboardPowerCaseMouse
Logitech mk260 NZXT Hale90 750 Fractal Design Arc Midi Logitech G9x 
Mouse PadAudioAudioAudio
Steelseries QcK Denon AH D2000 Harman Kardon AVR 2600 Polk RTi8s, Rti4s and CSi3 
CPUMotherboardGraphicsRAM
Intel G645 Asrock z77 Extreme 4 Nvidia Branded GTX 460 SLI 8GB Corsair Vengeance Low profile DDR3 1600 
Hard DriveOSPowerCase
Hitachi 1TB Windows 7 Antec HCG 750 Bitfenix Shinobi Window 
Mouse Pad
Diablo 3 Steel Series.  
  hide details  
Reply
Ada
(24 items)
 
Aegis
(9 items)
 
 
CPUMotherboardGraphicsRAM
AMD 1700 Gigabyte AB350 Gaming 3 EVGA GTX 980 ti Classified F4-3600C16D-16GTZ @3200 
Hard DriveHard DriveHard DriveHard Drive
Intel 520 120GB SSD Samsung F2 1TB X2 Samsung F4 2TB Hitachi 1TB X2 
Hard DriveOptical DriveCoolingCooling
Seagate 3 TB Pioneer BDR 2207 Noctua NH D14 Sunbeam Rheobus Extreme 
CoolingOSMonitorMonitor
Enermax 140mm T.B. Vegas Duo x2 Win 10 Pro Extreme Edition Catleap 2B  ASUS VH242H  
KeyboardPowerCaseMouse
Logitech mk260 NZXT Hale90 750 Fractal Design Arc Midi Logitech G9x 
Mouse PadAudioAudioAudio
Steelseries QcK Denon AH D2000 Harman Kardon AVR 2600 Polk RTi8s, Rti4s and CSi3 
CPUMotherboardGraphicsRAM
Intel G645 Asrock z77 Extreme 4 Nvidia Branded GTX 460 SLI 8GB Corsair Vengeance Low profile DDR3 1600 
Hard DriveOSPowerCase
Hitachi 1TB Windows 7 Antec HCG 750 Bitfenix Shinobi Window 
Mouse Pad
Diablo 3 Steel Series.  
  hide details  
Reply
post #5 of 10
I personally recommend Corsair PSUs. I've had my 750w for about two years now and it's handled a lot of stuff I've done on this rig (rendering, BOINC, gaming, etc).
2011 Workstation
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 860 MSI P55-GDR Sapphire HD 6970 2GB G-Skill 8GB 
Hard DriveOptical DriveOSMonitor
4x WD 750GB (Raid 0+1) LG lightscribe Windows 7 Home Premium 64bit Acer AL2216W x2 
KeyboardPowerCaseMouse
Microsoft ergonomics Corsair 750w Antec 902 Logitech MX815 
Mouse Pad
none 
  hide details  
Reply
2011 Workstation
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 860 MSI P55-GDR Sapphire HD 6970 2GB G-Skill 8GB 
Hard DriveOptical DriveOSMonitor
4x WD 750GB (Raid 0+1) LG lightscribe Windows 7 Home Premium 64bit Acer AL2216W x2 
KeyboardPowerCaseMouse
Microsoft ergonomics Corsair 750w Antec 902 Logitech MX815 
Mouse Pad
none 
  hide details  
Reply
post #6 of 10
Thread Starter 
Yeah, I was looking at the Corsair HX-750 but wasn't sure if it would be enough.
post #7 of 10
Depends, If you want to go SLI in the future, Go for a nice 850w

But if you are going to stay with just one GTX580, Then even 650w should be sufficient.

As for RAM, Go for 8GB, That is all you will really need.
My system (AMD)
(14 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 BE "Deneb" @ 3415Mhz Gigabyte GA-MA790X-DS4 (1x) Gigabyte AMD Radeon 5770 Kingston HyperX DDR2 1066 4GB 
Hard DriveOSMonitorKeyboard
2x 500GB, 1x 1TB external Windows 7 Ultimate Deep Blue 32bit 1x Asus VE248H 24" Monitor Tt eSPORTS Challenger Gaming Keyboard 
PowerCaseMouseMouse Pad
Thermaltake 550w Aero Cool Syclone II Logitech MX518 1800DPI Red Mousepad 
Audio
Creative Headphones 
  hide details  
Reply
My system (AMD)
(14 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 BE "Deneb" @ 3415Mhz Gigabyte GA-MA790X-DS4 (1x) Gigabyte AMD Radeon 5770 Kingston HyperX DDR2 1066 4GB 
Hard DriveOSMonitorKeyboard
2x 500GB, 1x 1TB external Windows 7 Ultimate Deep Blue 32bit 1x Asus VE248H 24" Monitor Tt eSPORTS Challenger Gaming Keyboard 
PowerCaseMouseMouse Pad
Thermaltake 550w Aero Cool Syclone II Logitech MX518 1800DPI Red Mousepad 
Audio
Creative Headphones 
  hide details  
Reply
post #8 of 10
Quote:
Originally Posted by AMDrocks View Post
Depends, If you want to go SLI in the future, Go for a nice 850w

But if you are going to stay with just one GTX580, Then even 650w should be sufficient.
He can do better at both price points
post #9 of 10
Go for 650w or if you believe buying a second GTX580 is possible, then buy an 850w unit to handle SLI duties.
Ryzen 5 1600
(12 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600 MSI B350 Gaming Plus Gigabyte GeForce GTX 1060 WINDFORCE2 OC 16GB (2x8GB) Corsair DDR4 Vengeance LED, PC4-24... 
Hard DriveHard DriveCoolingOS
256GB Samsung PM961 Polaris M.2 NVMe  1TB Toshiba DT01ACA100 3.5" HDD, SATA III  Cooler Master Hyper 212 Evo Windows 10 64 
KeyboardPowerCaseMouse
Unicomp Model M 650W EVGA SuperNOVA G1, 80PLUS Gold, Full Modular Kolink Luminosity Cooler Master Reaper Aluminium 
  hide details  
Reply
Ryzen 5 1600
(12 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600 MSI B350 Gaming Plus Gigabyte GeForce GTX 1060 WINDFORCE2 OC 16GB (2x8GB) Corsair DDR4 Vengeance LED, PC4-24... 
Hard DriveHard DriveCoolingOS
256GB Samsung PM961 Polaris M.2 NVMe  1TB Toshiba DT01ACA100 3.5" HDD, SATA III  Cooler Master Hyper 212 Evo Windows 10 64 
KeyboardPowerCaseMouse
Unicomp Model M 650W EVGA SuperNOVA G1, 80PLUS Gold, Full Modular Kolink Luminosity Cooler Master Reaper Aluminium 
  hide details  
Reply
post #10 of 10
850..always better to have a little headroom..8 gb of RAM would be plenty..i'd recommend some ddr3 2133 LV RAM
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › 750W or 850W?