Overclock.net › Forums › Graphics Cards › AMD/ATI › Crossfire HD 4870x2? Requirements? Bottleneck?
New Posts  All Forums:Forum Nav:

Crossfire HD 4870x2? Requirements? Bottleneck?

post #1 of 25
Thread Starter 
Hi guys,

if you haven't heard...

http://www.overclock.net/online-deal...-104-23-a.html

for 100 bucks... yup

Anyways I was wondering if my system is able to handle at least one of these let alone crossfire? Will I need a new PSU if I want to Crossfire these? I bet the CPU is bottlenecking it as hell overclocked at 3.2Ghz?
post #2 of 25
I would recommend a 1000w psu - they are not that expensive

and get that cpu to around 3-3.2 ghz and you should be set
post #3 of 25
Quote:
Originally Posted by RagingAzn628 View Post
Hi guys,

if you haven't heard...

http://www.overclock.net/online-deal...-104-23-a.html

for 100 bucks... yup

Anyways I was wondering if my system is able to handle at least one of these let alone crossfire? Will I need a new PSU if I want to Crossfire these? I bet the CPU is bottlenecking it as hell overclocked at 3.2Ghz?
If you want to run two of them in CrossFire, then you should get a quality 750W (850W if you want to be completely safe) PSU with 4 PCI-E connectors. For single, your current PSU will suffice.
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
post #4 of 25
Thread Starter 
Quote:
Originally Posted by goldboy View Post
I would recommend a 1000w psu - they are not that expensive

and get that cpu to around 3-3.2 ghz and you should be set
Sweet how much power would I need for just 1 of these bad boys? is 750w fine? I was thinking of getting Sandy Bridge i5/i7 and a completely different mobo etc. and ofc PSU now LOL
post #5 of 25
750w is fine for one
post #6 of 25
Thread Starter 
Sweet thanks I will donate other to my cousin? He has the OCZ XStreamII 600w is that good enough? i5 sandy bridge.
post #7 of 25
I run mine on a 4.1Ghz Phenom 2 x6 and a 1Kw PSU.

Make sure you have decent air flow in your case they get very hot, And I meen hot.
post #8 of 25
I have seasonic 850 watts PSU. Will it work with 4870 x2 quad?
Crazy Rig
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.1ghz HT Asus Rampage III Extreme Zotac GTX 660 Powercolor 7870 Tahiti LE CF 
GraphicsRAMHard DriveOptical Drive
Asus 6970 + 6950 (6970shader) CF Patriot Viper Extreme 3x2gb 2000mhz Kingston Hyperlink 120GB SSD, Crucial M4 64GB S... LG dvd writer 
OSMonitorMonitorKeyboard
Window 8 Professional DELL U3011 A01 DELL U2313HM X3 Steelseries 7G 
PowerCaseMouseMouse Pad
Seasonic 850 Silver Corsair Obsidian 650D Logitech G9X Steel Series QCK 
Audio
Asus Xonar ST 
  hide details  
Reply
Crazy Rig
(17 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.1ghz HT Asus Rampage III Extreme Zotac GTX 660 Powercolor 7870 Tahiti LE CF 
GraphicsRAMHard DriveOptical Drive
Asus 6970 + 6950 (6970shader) CF Patriot Viper Extreme 3x2gb 2000mhz Kingston Hyperlink 120GB SSD, Crucial M4 64GB S... LG dvd writer 
OSMonitorMonitorKeyboard
Window 8 Professional DELL U3011 A01 DELL U2313HM X3 Steelseries 7G 
PowerCaseMouseMouse Pad
Seasonic 850 Silver Corsair Obsidian 650D Logitech G9X Steel Series QCK 
Audio
Asus Xonar ST 
  hide details  
Reply
post #9 of 25
Quote:
Originally Posted by krazyatom View Post
I have seasonic 850 watts PSU. Will it work with 4870 x2 quad?
Yes. Most people seem to be kinda overstating the power requirements of a 4870X2. It only requires a quality 550W for single and a quality 750W for dual. This card doesn't draw too much power.
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core 2 Duo P7450 @2.7GHz Pegatron G60VX (A12) GeForce GTX 260M 1GB @610/1500/2000 Hynix 4GB DDR2 @1000MHz 
Hard DriveOptical DriveOSMonitor
Seagate Momentus 7200.4 320GB LG GSA-T50N, HP dvd1170r Windows 7 Home Premium 64-bit HP W2207 22" (1680x1050) 
KeyboardPowerMouse
Microsoft Digital media Keyboard 3000 Delta Electronics ADP-120ZB BB 120W Logitech G500 
  hide details  
Reply
post #10 of 25
Thread Starter 
Quote:
Originally Posted by scatteh316 View Post
I run mine on a 4.1Ghz Phenom 2 x6 and a 1Kw PSU.

Make sure you have decent air flow in your case they get very hot, And I meen hot.
Do you have the visiontek one? Because it looks like these might run cooler than the others because of the ram placements. I have the NZXT Phantom Case with incredible airflow!
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Crossfire HD 4870x2? Requirements? Bottleneck?