Overclock.net › Forums › Graphics Cards › AMD/ATI › Should I Xfire 5870s
New Posts  All Forums:Forum Nav:

Should I Xfire 5870s

post #1 of 5
Thread Starter 
I've come back to deciding wether or not I should xfire my 5870 I currently have. I was originally going to wait for the 7850 or 7870 card but not have gone back to maybe xfiring my current setup. One of the reason I recently decided to xfire my 5870 is because my DP cable seems to be stuck in my gpu and I can't budge it out. It seems like the button won't bring the teeth in to pull it out or I'm just not using enough strength, has anyone ever gotten their DP cables stuck before? If so are there anyways I can try getting it out? I don't care about damaging the cable but don't wanna damage the DP input on my gpu. Also would 650w psu be enough for a xfire 5870 setup?


Sent from my iPhone using Tapatalk
Edited by Trials - 2/14/12 at 11:03am
First Build
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1055t OC'd 3.7 1.428V Asus Crosshair IV ATI Radeon HD 5870 G.SKILL Ripjaws X Series 8GB 
Hard DriveCoolingOSKeyboard
1 TB Seagate Cooler Master Hyper 212 Plus  Windows 64 Bit Leopold TKL FC200R 
PowerCaseMouse
Ghetto 600 Watt Antec Three Hundred Illusion Black Steel Razer Deathadder 
  hide details  
Reply
First Build
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1055t OC'd 3.7 1.428V Asus Crosshair IV ATI Radeon HD 5870 G.SKILL Ripjaws X Series 8GB 
Hard DriveCoolingOSKeyboard
1 TB Seagate Cooler Master Hyper 212 Plus  Windows 64 Bit Leopold TKL FC200R 
PowerCaseMouse
Ghetto 600 Watt Antec Three Hundred Illusion Black Steel Razer Deathadder 
  hide details  
Reply
post #2 of 5
Hey man! Coming from a guy with 5870's and HAD at 7970...ALL depends on what you're playing. Here is what the deciding factor was for me...

CrossFire is awesome and the 5870's scale well, and in CrossFire they are basically bench for bench, neck and neck with the single 7970. But! If you're someone that plays games in Borderless Windowed Mode then get the 7970! CrossFire has a downfall where it can't recognize a windowed 3d image and doesn't activate the crossfire. (Its one of the small things those dang SLI'ers have one upped us on, SLI works in windowed mode) If you don't play in windowed mode then yes, get the second 5870 but I'll warn you. 650 is not going to cut the CrossFire but it should suit the single 7970. Keep these things in mind. All in All. If you're a type of person that get's 5870's and 7970's (aka flagship GPU's) then you should probably upgrade you PSU soon anyways so don't let that be your limiting factor. PLEASE, feel free to PM me with any questions. I actually had the 7970 and returned it when I found out it was the EXACT same FPS as my CrossFire 5870's. I planned on doing CrossFire 7970's but then I saw the leaked Kepler benches and whether they're right or not, I have to wait and see before spending $1000+ on GPU's again.
post #3 of 5
Thread Starter 
Oh dang I just upgraded to a modular 650 psu from my previous 600 no name :/ I originally was going to get a 750 to be on the safe side for 7870s or 6870s but someone told me 650 would be more then adequate. Do the 5870s really use that much more power then the 6 series gpu because I've heard that people run xfire 6870s under 100% load and only use about 540w is that true? Also when someone says a gpu scales well what does that exactly mean? I've heard that 5870s don't scale well compared to 6870s in xfire, if that is indeed true about what percentage of performance is the difference?


Sent from my iPhone using Tapatalk
First Build
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1055t OC'd 3.7 1.428V Asus Crosshair IV ATI Radeon HD 5870 G.SKILL Ripjaws X Series 8GB 
Hard DriveCoolingOSKeyboard
1 TB Seagate Cooler Master Hyper 212 Plus  Windows 64 Bit Leopold TKL FC200R 
PowerCaseMouse
Ghetto 600 Watt Antec Three Hundred Illusion Black Steel Razer Deathadder 
  hide details  
Reply
First Build
(11 items)
 
  
CPUMotherboardGraphicsRAM
AMD 1055t OC'd 3.7 1.428V Asus Crosshair IV ATI Radeon HD 5870 G.SKILL Ripjaws X Series 8GB 
Hard DriveCoolingOSKeyboard
1 TB Seagate Cooler Master Hyper 212 Plus  Windows 64 Bit Leopold TKL FC200R 
PowerCaseMouse
Ghetto 600 Watt Antec Three Hundred Illusion Black Steel Razer Deathadder 
  hide details  
Reply
post #4 of 5
http://extreme.outervision.com/psucalculatorlite.jsp

Het dood, try that website and find out exactly how much power you need. Then worry about if your supply has enough juice or needs more.

But to summarize, yes they'll use more power than the 6870's...I don't remember EXACTLY how much and rather than making a number up and getting trolled for the rest of the tread I'll just say look it up.

Scaling is how well the graphics cards (multi-gpus) work together. For instance, if you have 1 card...it's working at 100% of it's capability. It doesn't need to trade info with any cards, doesn't need to error check with anyone else, doesn't need to dedup any information (dedup is double-checking the other card hasn't done the same task and if it has, removing it so it's only got 1 instance of the info). IF my one card ran a game at 100FPS and I added a second card, I'm obviously going to get better performance but based on how well it SCALES is how much performance I'll get. I'm not going to get 200FPS but hopefully close. So if I get 175FPS then you card scales 75%. Not a very good scale, which I found is what the 5870's did. (GREAT for it's time though). The 6870's should scale to about 185-195FPS. They scare very well...about 85-95% depending on the game. Then if you run to a third card you have to scale again....so 1 card=100FPS...2nd card =195FPS....the third and fourth card usually don't scale as well...only another 60% usually. so 3rd card = 260FPS...4th = 290-320FPS....I'm COMPLETELY making up the 4th cards FPS but you get the idea. If you hear a card scales well, that's what they're talking about. GL HF!
post #5 of 5
5870 CFX is good stuff
Mighty-iTX
(12 items)
 
One foot in..
(17 items)
 
mATX
(12 items)
 
CPUMotherboardGraphicsRAM
i7-4770K M7-Impact Strix GTX980 Samsung 
Hard DriveCoolingOSMonitor
Crucial M4 256 Glacer 240L W8.1 K272HUL 
KeyboardPowerCaseMouse
Saitek Seasonic X-650 Prodigy MX518 
CPUMotherboardGraphicsGraphics
4770K/45/43 Maximus VI Extreme R290X R290X 
RAMHard DriveHard DriveOptical Drive
Samsung Crucial M4 64GB RAIDR LSSWM 
CoolingOSMonitorKeyboard
Cooler Master Glacer 7 Ultimate 64 SyncMaster Eclipse 
PowerCaseMouseMouse Pad
XFX 1050 BE 600T Silver MX518 Desk 
CPUMotherboardGraphicsRAM
i5-4330 Z87 Gryphon GTX690 G.Skill RipJawsX 
Hard DriveCoolingOSMonitor
WD Blacks Hyper 212 W8.1 ACER 
KeyboardPowerCaseMouse
Logitech Ultra X3 1000w Corsair 230T Orange Razer 
  hide details  
Reply
Mighty-iTX
(12 items)
 
One foot in..
(17 items)
 
mATX
(12 items)
 
CPUMotherboardGraphicsRAM
i7-4770K M7-Impact Strix GTX980 Samsung 
Hard DriveCoolingOSMonitor
Crucial M4 256 Glacer 240L W8.1 K272HUL 
KeyboardPowerCaseMouse
Saitek Seasonic X-650 Prodigy MX518 
CPUMotherboardGraphicsGraphics
4770K/45/43 Maximus VI Extreme R290X R290X 
RAMHard DriveHard DriveOptical Drive
Samsung Crucial M4 64GB RAIDR LSSWM 
CoolingOSMonitorKeyboard
Cooler Master Glacer 7 Ultimate 64 SyncMaster Eclipse 
PowerCaseMouseMouse Pad
XFX 1050 BE 600T Silver MX518 Desk 
CPUMotherboardGraphicsRAM
i5-4330 Z87 Gryphon GTX690 G.Skill RipJawsX 
Hard DriveCoolingOSMonitor
WD Blacks Hyper 212 W8.1 ACER 
KeyboardPowerCaseMouse
Logitech Ultra X3 1000w Corsair 230T Orange Razer 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Should I Xfire 5870s