Overclock.net › Forums › Graphics Cards › NVIDIA › Will 2 GTX 580's be bottlenecked by my CPU?
New Posts  All Forums:Forum Nav:

Will 2 GTX 580's be bottlenecked by my CPU? - Page 2

post #11 of 77
I think it depends on whether it is gaming or benchmarking. If gaming, then it depends on the game and resolution and AA/AF applied.
But, in general, I say, an i7 920 at 4GHz can max out a pair of GTX580s.

My analysis:-
GTX580 is faster than GTX570 and GTX570 is roughly the same as GTX480.
So, GTX580 SLI should more or less perform somewhere between GTX480 2-way and 3-way SLI.

Now, take a look at the i7 920 scaling graphs with one, two and three GTX480s:
http://benchmarkextreme.com/Articles...leneck/P9.html

I say, an i7 920 at 4GHz maxes out GTX480 2-way and 3-way SLI good for the 10 or so games tested.
Therefore, it can also max out GTX580 SLI.
post #12 of 77
Quote:
Originally Posted by Stensby View Post
While they may be slightly hindered, you should most definitely not upgrade. That i7 is more than capable of gaming anything with those GPU's.
Not even slightly hindered with his CPU OC'd to 4.2 GHz.
post #13 of 77
Quote:
Originally Posted by dihartnell View Post
Not even slightly hindered with his CPU OC'd to 4.2 GHz.
Au Contraire. In fact, there's not even the slightest question that they COULD be hindered by an i7 OC'd to 4.2GHz.

Try running 3dMark06 on SLI 580's and comparing the GPU test scores with the cpu at 4.2GHz vs 5.2GHz and you will discover a very significantly sized CPU bottleneck to be present at 4.2GHz.

In fact, you'd even discover that you had a small CPU BN on the GPU tests in Vantage Performance Mode. It'd disappear though if you ran it in Extreme mode ... which is a far more appropriate setting for such a rig.

Now ... on the flipside, the effects of CPU limitation with this setup are very unlikely to ever be SEVERE, and would be very infrequent ... but like I say ... it'd very easy to create a measurable CPU BN with this setup w/o much effort.

IOW, @ lower resolutions, easier IQ settings, low AA, etc ... you'd BN like a mofo.
Edited by brettjv - 1/6/11 at 11:22pm
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
post #14 of 77
Quote:
Originally Posted by Serious_Don View Post
...if that CPU bottlenecks any GPU on the market I might as well rip out my phenom and throw it in the toilet
My 980x at 4.4ghz is bottle necking my tri-sli 580s.

Don't forget your fishing pole
Main system
(16 items)
 
Editing PC
(8 items)
 
 
CPUGraphicsGraphicsRAM
E5-1680v2 AMD FirePro D700 AMD FirePro D700 64GB 1866mhz 
Hard DriveOSMonitorCase
1TB PCIE SSD OSX 10.10.x Dell U2713H Mac Pro 
  hide details  
Reply
Main system
(16 items)
 
Editing PC
(8 items)
 
 
CPUGraphicsGraphicsRAM
E5-1680v2 AMD FirePro D700 AMD FirePro D700 64GB 1866mhz 
Hard DriveOSMonitorCase
1TB PCIE SSD OSX 10.10.x Dell U2713H Mac Pro 
  hide details  
Reply
post #15 of 77
That's silly.
2013
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-6300 ASRock 970 Extreme3 MSI GTX 470 8GB G.SKILL Sniper 1600 1.25v 
Hard DriveOptical DriveCoolingOS
Kingston HyperX 3K 120GB LG GH22NS50 CM Hyper 212 Evo W7 Ultimate x64 
MonitorKeyboardPowerCase
Asus VE228H i-rocks KR-6820E-BK  Antec Neo ECO 520C  HAF 912 
Mouse
G9x  
  hide details  
Reply
2013
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-6300 ASRock 970 Extreme3 MSI GTX 470 8GB G.SKILL Sniper 1600 1.25v 
Hard DriveOptical DriveCoolingOS
Kingston HyperX 3K 120GB LG GH22NS50 CM Hyper 212 Evo W7 Ultimate x64 
MonitorKeyboardPowerCase
Asus VE228H i-rocks KR-6820E-BK  Antec Neo ECO 520C  HAF 912 
Mouse
G9x  
  hide details  
Reply
post #16 of 77
it is impossible to bottleneck a core i7 at over 4.0GHZ.

cant be done...
    
CPUMotherboardGraphicsRAM
Core i7 920 4.2GHZ @1.325 (HT on) Asus Rampage II Extreme X58 None. 6GB corsair i7 dominator CAS7 DDR3 Elpida Hypers 
Hard DriveOptical DriveOSMonitor
2X WD 500GB Caviar black Raid-0 + 1TB Caviar Green Samsung superwrite master Windows 7 X64 home premium SP1 Samsung Syncmaster 2243 
KeyboardPowerCaseMouse
Razor Lycosa + Das keyboard II Themaltake toughpower 1200watt Coolermaster HAF X Razor Deathadder 3500Dpi 
Mouse Pad
none. 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i7 920 4.2GHZ @1.325 (HT on) Asus Rampage II Extreme X58 None. 6GB corsair i7 dominator CAS7 DDR3 Elpida Hypers 
Hard DriveOptical DriveOSMonitor
2X WD 500GB Caviar black Raid-0 + 1TB Caviar Green Samsung superwrite master Windows 7 X64 home premium SP1 Samsung Syncmaster 2243 
KeyboardPowerCaseMouse
Razor Lycosa + Das keyboard II Themaltake toughpower 1200watt Coolermaster HAF X Razor Deathadder 3500Dpi 
Mouse Pad
none. 
  hide details  
Reply
post #17 of 77
The only way to bottleneck your system would be to run GTA4 at 1280x1024 with all visual settings down low.
Bench Stuffs
(32 items)
 
ITX Daily Driver
(11 items)
 
For Sale: 6GHz+ 980X
$225 (USD) or best offer
CPUCPUCPUCPU
Intel Core i7 920 Intel Xeon W3520 Intel Core i7 4770K Intel Core 2 Duo E8500 
CPUCPUCPUCPU
Intel Pentium G3258 Intel QX9650 AMD FX 4300 Intel E2140 
CPUMotherboardGraphicsGraphics
E4300 Asus Rampage Extreme / P5E3 Deluxe / Gigabyte X... MSI GTX 275 Lightning MSI HD 7970 Lightning 
GraphicsGraphicsGraphicsGraphics
Asus GTX 285 Matrix Platinum MSI HD 5870 Lightning EVGA GTX 980 TI Classified K|ngp|n Edition MSI GTX 580 Lightning 
RAMRAMRAMRAM
Corsair Dominator Platinum 2666 10-12-12 Samsung Corsair Dominator GT 2000 7-8-7 Hypers Kingston HyperX 2000 9-9-9 BBSE G.Skill Trident 2000 9-9-9 PSC 
Hard DriveHard DriveHard DriveCooling
Kingston SSD Now! 128GB Patriot Torqx 2 32GB Seagate 80GB XPSC Rasa + EK VGA + HWLabs Black Ice GTX 360 +... 
OSOSOSKeyboard
W7 Pro x64 SP1 Windows XP x86 SP3 W8.1 Ducky Shine 3, Cherry Brown Switches 
PowerCaseMouseMouse Pad
Corsair AX1200 Dimastech Easy V2.5! <3 Logitech G5 Battlefield 2142 Edition Puretrak Stealth 
  hide details  
Reply
Bench Stuffs
(32 items)
 
ITX Daily Driver
(11 items)
 
For Sale: 6GHz+ 980X
$225 (USD) or best offer
CPUCPUCPUCPU
Intel Core i7 920 Intel Xeon W3520 Intel Core i7 4770K Intel Core 2 Duo E8500 
CPUCPUCPUCPU
Intel Pentium G3258 Intel QX9650 AMD FX 4300 Intel E2140 
CPUMotherboardGraphicsGraphics
E4300 Asus Rampage Extreme / P5E3 Deluxe / Gigabyte X... MSI GTX 275 Lightning MSI HD 7970 Lightning 
GraphicsGraphicsGraphicsGraphics
Asus GTX 285 Matrix Platinum MSI HD 5870 Lightning EVGA GTX 980 TI Classified K|ngp|n Edition MSI GTX 580 Lightning 
RAMRAMRAMRAM
Corsair Dominator Platinum 2666 10-12-12 Samsung Corsair Dominator GT 2000 7-8-7 Hypers Kingston HyperX 2000 9-9-9 BBSE G.Skill Trident 2000 9-9-9 PSC 
Hard DriveHard DriveHard DriveCooling
Kingston SSD Now! 128GB Patriot Torqx 2 32GB Seagate 80GB XPSC Rasa + EK VGA + HWLabs Black Ice GTX 360 +... 
OSOSOSKeyboard
W7 Pro x64 SP1 Windows XP x86 SP3 W8.1 Ducky Shine 3, Cherry Brown Switches 
PowerCaseMouseMouse Pad
Corsair AX1200 Dimastech Easy V2.5! <3 Logitech G5 Battlefield 2142 Edition Puretrak Stealth 
  hide details  
Reply
post #18 of 77
Quote:
Originally Posted by Yoko Littner View Post
it is impossible to bottleneck a core i7 at over 4.0GHZ.

cant be done...
I presume you meant to say 'to BE bottlenecked BY a core i7 ...', correct?

Well, that's really only true if you're making up your own definition of what the word 'bottleneck' means. Using the literal definition, you can easily create a CPU BN with a couple (or 3) high-end graphics cards and an i7 at 4.0.

You familiar w/3dMark06?
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
  hide details  
Reply
post #19 of 77
u cant bottleneck an i7.

Litterly impossible no matter how many GPU's u can fit on a board. it cannot be done...

The QPI speed's and ultra high bandwith of the X58 platform prevent's this.

IF The X58 platform has anything of overkill it is bandwith. so much so, most app's and things done with a pc cant even use half of it!
    
CPUMotherboardGraphicsRAM
Core i7 920 4.2GHZ @1.325 (HT on) Asus Rampage II Extreme X58 None. 6GB corsair i7 dominator CAS7 DDR3 Elpida Hypers 
Hard DriveOptical DriveOSMonitor
2X WD 500GB Caviar black Raid-0 + 1TB Caviar Green Samsung superwrite master Windows 7 X64 home premium SP1 Samsung Syncmaster 2243 
KeyboardPowerCaseMouse
Razor Lycosa + Das keyboard II Themaltake toughpower 1200watt Coolermaster HAF X Razor Deathadder 3500Dpi 
Mouse Pad
none. 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i7 920 4.2GHZ @1.325 (HT on) Asus Rampage II Extreme X58 None. 6GB corsair i7 dominator CAS7 DDR3 Elpida Hypers 
Hard DriveOptical DriveOSMonitor
2X WD 500GB Caviar black Raid-0 + 1TB Caviar Green Samsung superwrite master Windows 7 X64 home premium SP1 Samsung Syncmaster 2243 
KeyboardPowerCaseMouse
Razor Lycosa + Das keyboard II Themaltake toughpower 1200watt Coolermaster HAF X Razor Deathadder 3500Dpi 
Mouse Pad
none. 
  hide details  
Reply
post #20 of 77
Quote:
Originally Posted by Confessed View Post
That's silly.
Your a troll, also bottlenecking is a myth with ANY i7 cpu it the RAM you have to worry about. people try to run GTX 480's on DDR2 800mhz ram and they run into problems 1600mhz is a safe spot
Sandstorm
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k MSI P67A-G45 Sapphire 6870 Patriot 2x2gb 1333mhz 
Hard DriveOptical DriveMonitorPower
500gb Wester Digital Caviar Blue Sony DVD/RW Drive Acer P216HV 21.5in + Acer P205H 20in 730W Raidmax 
Case
NZXT Gamma 
  hide details  
Reply
Sandstorm
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k MSI P67A-G45 Sapphire 6870 Patriot 2x2gb 1333mhz 
Hard DriveOptical DriveMonitorPower
500gb Wester Digital Caviar Blue Sony DVD/RW Drive Acer P216HV 21.5in + Acer P205H 20in 730W Raidmax 
Case
NZXT Gamma 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › Will 2 GTX 580's be bottlenecked by my CPU?