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Which 2 ATi Cards can my Q6600 handle?

post #1 of 18
Thread Starter 
It's currently at 3.6GHz

Was thinking of getting a couple 6850's

How do you find out if the GPU's will get bottlenecked by the CPU?
post #2 of 18
You will be fine with 6850's in CF - I had SLI 470's on a Q6600 and they ran fine - the way you would find out is to look at GPU utilization in something such as MSI Afterburner - if it is 80%+ then you're pretty good, if its any lower than that you would definitely have a CPU bottleneck.
The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
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Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
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The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
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post #3 of 18
I had some bottlenecking on my old dual core with this gtx 460, it isn't nice, but with a quad you'll have slightly more than double the power of that (you have loads more cache and stuff). You should be fine with 2 6850's. Make sure your power supply can handle that though. What one have you got?
     
CPUMotherboardGraphicsRAM
Intel Core i5 2500k @ 4ghz Asus P8P67 pro Gigabyte GTX780 12GB Corsair RAM (2/3 vengance, 1/3 XMS3) 
Hard DriveHard DriveHard DriveOptical Drive
500gb Spinpoint f3 Samsung 840 EVO 120gb Seagate 7200.14 2tb Samsung dvd+-rw 
CoolingOSMonitorMonitor
Noctua NH-D14 Windows 7 ultimate x64 LG 24MP55 x2 LG 32LD450 
KeyboardPowerCaseMouse
Dell thing. Corsair TX650 Coolermaster cm690 Logitech G500 
Mouse PadAudioAudio
none Xonar DG and logitech X-540 Beyer DT770 PRO 
CPUMotherboardGraphicsRAM
AMD A6-4455m 2.1ghz Dual Covered in tea stains Radeon 7500G 6GB 
Hard DriveOptical DriveCoolingOS
SSD soon None Inadequate Win7 of course 
MonitorKeyboardCase
It's awful A bit meh, Bodged hinge repair (Nut and bolt through back ... 
CPUMotherboardGraphicsRAM
Celeron M 360 1.4ghz Packard bell easynote (lynx banias) Intel 855gm 768mb 
Hard DriveOptical DriveOSMonitor
50gb seagate Cd dvd combi XP sp3 15 
KeyboardPowerCaseMouse
one with buttons Brick It has one It has leds 
Mouse Pad
my lap or the chair 
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CPUMotherboardGraphicsRAM
Intel Core i5 2500k @ 4ghz Asus P8P67 pro Gigabyte GTX780 12GB Corsair RAM (2/3 vengance, 1/3 XMS3) 
Hard DriveHard DriveHard DriveOptical Drive
500gb Spinpoint f3 Samsung 840 EVO 120gb Seagate 7200.14 2tb Samsung dvd+-rw 
CoolingOSMonitorMonitor
Noctua NH-D14 Windows 7 ultimate x64 LG 24MP55 x2 LG 32LD450 
KeyboardPowerCaseMouse
Dell thing. Corsair TX650 Coolermaster cm690 Logitech G500 
Mouse PadAudioAudio
none Xonar DG and logitech X-540 Beyer DT770 PRO 
CPUMotherboardGraphicsRAM
AMD A6-4455m 2.1ghz Dual Covered in tea stains Radeon 7500G 6GB 
Hard DriveOptical DriveCoolingOS
SSD soon None Inadequate Win7 of course 
MonitorKeyboardCase
It's awful A bit meh, Bodged hinge repair (Nut and bolt through back ... 
CPUMotherboardGraphicsRAM
Celeron M 360 1.4ghz Packard bell easynote (lynx banias) Intel 855gm 768mb 
Hard DriveOptical DriveOSMonitor
50gb seagate Cd dvd combi XP sp3 15 
KeyboardPowerCaseMouse
one with buttons Brick It has one It has leds 
Mouse Pad
my lap or the chair 
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post #4 of 18
Thread Starter 
Corsair TX650W

What's the max power consumption of the 6850?
My PC idles at 140~ watts
post #5 of 18
I had a Q8400 at 3.2 GHz with a 5870, and I was severely bottlenecked in games such as Crysis, BFBC2, and even Portal 2. 3.6 won't be much different on the older 65nm process vs the Q8400 which was 45nm.

I think you're gonna be bottlenecked.
SCTDF
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K P8P67 PRO GTX 480 G.Skill 8GB 
Hard DriveHard DriveOptical DriveCooling
Callisto Deluxe  WD Green 1TB Samsung H-50 w/ AP-14's push-pull 
OSMonitorKeyboardPower
Windows 7 x64 Asus VH236H X2 Logitech G15 PC Power & Cooling 750W 
CaseMouseMouse PadAudio
Antec 300 Illusion MODDED Logitech G700 Razer Tron  Creative SB Titanium 
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SCTDF
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K P8P67 PRO GTX 480 G.Skill 8GB 
Hard DriveHard DriveOptical DriveCooling
Callisto Deluxe  WD Green 1TB Samsung H-50 w/ AP-14's push-pull 
OSMonitorKeyboardPower
Windows 7 x64 Asus VH236H X2 Logitech G15 PC Power & Cooling 750W 
CaseMouseMouse PadAudio
Antec 300 Illusion MODDED Logitech G700 Razer Tron  Creative SB Titanium 
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post #6 of 18
Every game is different. XFire 6970's would be bottlenecked in some games, and in others not. It all depends. I would Xfire 6850/6870's and call it a day.
Liquid
(18 items)
 
  
CPUMotherboardGraphicsGraphics
3930k ASUS Rampage IV Gene EVGA GTX480 @ 900MHz @ 1.1V EVGA GTX480 @ 900MHz @ 1.1V 
RAMHard DriveOptical DriveOS
4 x 4Gb Corsair Dominator 1866MHz Samsung 830 256GB LG DVD Burner Win 7 x64 
MonitorMonitorMonitorKeyboard
DELL U3011 DELL U3011 DELL U2410 Ducy Shine 2 
PowerCaseMouseAudio
Enermax Platinum 1200W Silverstone FT03 G500 Native Instruments Komplete Audio 6 
Audio
Yamaha HS80m 
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Liquid
(18 items)
 
  
CPUMotherboardGraphicsGraphics
3930k ASUS Rampage IV Gene EVGA GTX480 @ 900MHz @ 1.1V EVGA GTX480 @ 900MHz @ 1.1V 
RAMHard DriveOptical DriveOS
4 x 4Gb Corsair Dominator 1866MHz Samsung 830 256GB LG DVD Burner Win 7 x64 
MonitorMonitorMonitorKeyboard
DELL U3011 DELL U3011 DELL U2410 Ducy Shine 2 
PowerCaseMouseAudio
Enermax Platinum 1200W Silverstone FT03 G500 Native Instruments Komplete Audio 6 
Audio
Yamaha HS80m 
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post #7 of 18
Should be fine with that psu and with some room to spare. I was just checking to see if you had one of those junk ones included with cases or something, but that's a good quality unit.
     
CPUMotherboardGraphicsRAM
Intel Core i5 2500k @ 4ghz Asus P8P67 pro Gigabyte GTX780 12GB Corsair RAM (2/3 vengance, 1/3 XMS3) 
Hard DriveHard DriveHard DriveOptical Drive
500gb Spinpoint f3 Samsung 840 EVO 120gb Seagate 7200.14 2tb Samsung dvd+-rw 
CoolingOSMonitorMonitor
Noctua NH-D14 Windows 7 ultimate x64 LG 24MP55 x2 LG 32LD450 
KeyboardPowerCaseMouse
Dell thing. Corsair TX650 Coolermaster cm690 Logitech G500 
Mouse PadAudioAudio
none Xonar DG and logitech X-540 Beyer DT770 PRO 
CPUMotherboardGraphicsRAM
AMD A6-4455m 2.1ghz Dual Covered in tea stains Radeon 7500G 6GB 
Hard DriveOptical DriveCoolingOS
SSD soon None Inadequate Win7 of course 
MonitorKeyboardCase
It's awful A bit meh, Bodged hinge repair (Nut and bolt through back ... 
CPUMotherboardGraphicsRAM
Celeron M 360 1.4ghz Packard bell easynote (lynx banias) Intel 855gm 768mb 
Hard DriveOptical DriveOSMonitor
50gb seagate Cd dvd combi XP sp3 15 
KeyboardPowerCaseMouse
one with buttons Brick It has one It has leds 
Mouse Pad
my lap or the chair 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Intel Core i5 2500k @ 4ghz Asus P8P67 pro Gigabyte GTX780 12GB Corsair RAM (2/3 vengance, 1/3 XMS3) 
Hard DriveHard DriveHard DriveOptical Drive
500gb Spinpoint f3 Samsung 840 EVO 120gb Seagate 7200.14 2tb Samsung dvd+-rw 
CoolingOSMonitorMonitor
Noctua NH-D14 Windows 7 ultimate x64 LG 24MP55 x2 LG 32LD450 
KeyboardPowerCaseMouse
Dell thing. Corsair TX650 Coolermaster cm690 Logitech G500 
Mouse PadAudioAudio
none Xonar DG and logitech X-540 Beyer DT770 PRO 
CPUMotherboardGraphicsRAM
AMD A6-4455m 2.1ghz Dual Covered in tea stains Radeon 7500G 6GB 
Hard DriveOptical DriveCoolingOS
SSD soon None Inadequate Win7 of course 
MonitorKeyboardCase
It's awful A bit meh, Bodged hinge repair (Nut and bolt through back ... 
CPUMotherboardGraphicsRAM
Celeron M 360 1.4ghz Packard bell easynote (lynx banias) Intel 855gm 768mb 
Hard DriveOptical DriveOSMonitor
50gb seagate Cd dvd combi XP sp3 15 
KeyboardPowerCaseMouse
one with buttons Brick It has one It has leds 
Mouse Pad
my lap or the chair 
  hide details  
Reply
post #8 of 18
Thread Starter 
Quote:
Originally Posted by Doodlebro View Post
I had a Q8400 at 3.2 GHz with a 5870, and I was severely bottlenecked in games such as Crysis, BFBC2, and even Portal 2. 3.6 won't be much different on the older 65nm process vs the Q8400 which was 45nm.

I think you're gonna be bottlenecked.
can anyone verify this?
post #9 of 18
Quote:
Originally Posted by Captainobvious View Post
can anyone verify this?
I can

But seriously, Crysis and BFBC2 were barely playable on that system. Portal 2 wouldn't go above 40 FPS, and other games were pretty bottlenecked. CPU usage was always at 100% on intensive games. Switching to my 2500K gave me 60 frames smooth in all of the games on my same 5870.
SCTDF
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K P8P67 PRO GTX 480 G.Skill 8GB 
Hard DriveHard DriveOptical DriveCooling
Callisto Deluxe  WD Green 1TB Samsung H-50 w/ AP-14's push-pull 
OSMonitorKeyboardPower
Windows 7 x64 Asus VH236H X2 Logitech G15 PC Power & Cooling 750W 
CaseMouseMouse PadAudio
Antec 300 Illusion MODDED Logitech G700 Razer Tron  Creative SB Titanium 
  hide details  
Reply
SCTDF
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K P8P67 PRO GTX 480 G.Skill 8GB 
Hard DriveHard DriveOptical DriveCooling
Callisto Deluxe  WD Green 1TB Samsung H-50 w/ AP-14's push-pull 
OSMonitorKeyboardPower
Windows 7 x64 Asus VH236H X2 Logitech G15 PC Power & Cooling 750W 
CaseMouseMouse PadAudio
Antec 300 Illusion MODDED Logitech G700 Razer Tron  Creative SB Titanium 
  hide details  
Reply
post #10 of 18
Quote:
Originally Posted by Doodlebro View Post
I can

But seriously, Crysis and BFBC2 were barely playable on that system. Portal 2 wouldn't go above 40 FPS, and other games were pretty bottlenecked. CPU usage was always at 100% on intensive games. Switching to my 2500K gave me 60 frames smooth in all of the games on my same 5870.
Thats odd. my QX6700 (3.4GHz overclocked) manages all those games fine with a single 6870. I run Crysis with the Natural Mod as well, and i get around 30-40fps.

I do run the Crysis 64bit exe though. I just playtested and my GPU usage is at around 95-100% while playing crysis, so i dunno what Doodlebro's problem was as that processor is newer then my QX6700.
Edited by Thingamajig - 8/1/11 at 1:31pm
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