Overclock.net › Forums › Graphics Cards › NVIDIA › Sli gtx 580 nf200?
New Posts  All Forums:Forum Nav:

Sli gtx 580 nf200?

post #1 of 13
Thread Starter 
I currently own a single GTX 580. I've been thinking about getting a second GTX 580, but I will need a PSU and MOBO upgrade. Just wondering if I need NF200 or if there's a big difference between NF200 vs x8, x8.
post #2 of 13
Quote:
Originally Posted by igortbelem View Post
I currently own a single GTX 580. I've been thinking about getting a second GTX 580, but I will need a PSU and MOBO upgrade. Just wondering if I need NF200 or if there's a big difference between NF200 vs x8, x8.
Unless you're going tri-sli or more don't worry about it, just find a board you like. NF200 is usually not used when only populating two slots as you will use the native PCI-E lanes first.
post #3 of 13
Yea, x8/x8 is fine.
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
post #4 of 13
Quote:
Originally Posted by Scorpion49 View Post
Unless you're going tri-sli or more don't worry about it, just find a board you like.
Yep.

Quote:
Originally Posted by Scorpion49 View Post
NF200 is usually not used when only populating two slots as you will use the native PCI-E lanes first.
Depends on mobo and slot configuration though. The Maximus does it that way, however others I can recall switch from dual x8 to x16 when the first two are populated.
eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
post #5 of 13
Quote:
Originally Posted by Johnny Doe View Post
Yep.



Depends on mobo and slot configuration though. The Maximus does it that way, however others I can recall switch from dual x8 to x16 when the first two are populated.
I should have clarified, usually you WANT to populate the native slots first and the manual usually suggests you do so for maximum performance.
post #6 of 13
installing a gtx 580 on a 16x slot and an 8x slot doesn't make any difference coz the full bandwith of a 8x pci-e 2.0 still can't be fully utilized. afaik the only cards that will bottlenecked by 8x slots are the 5970(very slight) 6990 and gtx 590.

2-way sli gtx 580 8x/8x vs. 16x/16x = zero performance difference.
post #7 of 13
Quote:
Originally Posted by Scorpion49 View Post
I should have clarified, usually you WANT to populate the native slots first and the manual usually suggests you do so for maximum performance.
No, you don't. NF200 gives a minimal performance hit, which is overcompansated by a heavier duty cycle. Sandy can only provide dual x8 natively, so NF200 helps. But as you said, it's an insignificant difference.

Quote:
Originally Posted by jprovido View Post
2-way sli gtx 580 8x/8x vs. 16x/16x = zero performance difference.
Nope.

eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
post #8 of 13
Thread Starter 
Currently looking at x8, x8 mobos since mine would only run at 16x, x4, and I'm not sure it supports SLI. Cheapest I'm seeing goes for $179.99 CAD(ASUS P8P67 PRO). Is that about right or are there cheaper ones? Any suggestions?
post #9 of 13
Quote:
Originally Posted by Johnny Doe View Post
No, you don't. NF200 gives a minimal performance hit, which is overcompansated by a heavier duty cycle. Sandy can only provide dual x8 natively, so NF200 helps. But as you said, it's an insignificant difference.



Nope.

@_@. ive read a long time ago that the bandwidth can be provided by the pcie 1.0 16x/2.0 8x is more than enough for a gtx 480. even a 5970 isn't bottlenecked that much. I had the exact numbers before but I don't have it anymore. oh well. it's good to learn something new
post #10 of 13
Not saying it isn't sufficient, of course it is. But unlike you said, the performance difference isn't "zero" with a setup like 580 SLi. There's little difference, but the difference is there.

The thing here is though, the OP should look for a P67 with a solid PSU. H67 can't OC.
eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
eBay Hunt
(13 items)
 
  
CPUMotherboardGraphicsRAM
Xeon E5640 X58 UD9 Four GTX 470's 3X2 GB Reaper 1866's 
Hard DriveMonitorPower
VRap 600 GB HP P1230 Real Power Pro 1250/Teapo's on the secondary 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › Sli gtx 580 nf200?