Overclock.net › Forums › Graphics Cards › AMD/ATI › CrossfireX at x4 vs x8
New Posts  All Forums:Forum Nav:

CrossfireX at x4 vs x8

post #1 of 29
Thread Starter 
So I am looking at a sandy bridge build and am deciding between two motherboards

A Biostar for $115 that has 2 PCI-e lanes (x16 and x4)
An MSI board for $140 with 2 PCI-e lanes (x16, x8)

Most of the other features seem similar

I am getting a single 6870 to start but will be going crossfire eventually...

Will I see a huge FPS drop using x4 x4 vs x8 x8? Is it worth the extra $25 to get the x8 x8?

Biostar
http://www.newegg.com/Product/Produc...82E16813138298

MSI
http://www.newegg.com/Product/Produc...82E16813130582

Thanks
I Shoot to Maim
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700k @ 4.5Ghz Gigabyte GA-Z170X Gaming 7 EVGA GTX 1080 SC ACX 3.0 Crucial 2x8GB DDR4 3200MHz 
Hard DriveHard DriveOptical DriveCooling
480GB Sandisk Extreme Pro 2TB WD Black 7200RPM Blu-Ray Reader/Burner NZXT Kraken x61 Watercooler 
OSMonitorKeyboardPower
Window 10 Dell S2716DGR + Qnix 1440p @ 96Hz + Asus 27" 1080p Logitech G910 Orion Spark Mechanical EVGA GQ 850 watt 
CaseMouseMouse PadAudio
Corsair Carbide 500R Anker 8200DPI SteelSeries QcK Gaming  Logitech Z623 
  hide details  
Reply
I Shoot to Maim
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700k @ 4.5Ghz Gigabyte GA-Z170X Gaming 7 EVGA GTX 1080 SC ACX 3.0 Crucial 2x8GB DDR4 3200MHz 
Hard DriveHard DriveOptical DriveCooling
480GB Sandisk Extreme Pro 2TB WD Black 7200RPM Blu-Ray Reader/Burner NZXT Kraken x61 Watercooler 
OSMonitorKeyboardPower
Window 10 Dell S2716DGR + Qnix 1440p @ 96Hz + Asus 27" 1080p Logitech G910 Orion Spark Mechanical EVGA GQ 850 watt 
CaseMouseMouse PadAudio
Corsair Carbide 500R Anker 8200DPI SteelSeries QcK Gaming  Logitech Z623 
  hide details  
Reply
post #2 of 29
I wouldn't go lower than 8x/8x for sli/cf.
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
post #3 of 29
Yes it's worth it.

For the most part you wouldn't notice.
I saw 5-10% performance drop, with the max being 20%.
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
post #4 of 29
The best is, 2 PCI-E 16X slots... That's full Crossfire.

4X PCI-E slot........ Go for the PCI-E 8X motherboard, the MSI motherboard is far way better with overclocking than the Biostar most of the times.
Amd/Ati
(20 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8150 Asus Crosshair V Formula Gigabyte GV-R697UD-2GD Corsair Dominator GT 1866 CL9 
Hard DriveHard DriveOptical DriveOptical Drive
Corsair Force GT 60GB Samsung Spinpoint F1 1TB Blu-Ray Drive Samsung Plextor PX-L890SA 
CoolingOSMonitorKeyboard
Cooler Master V8 Windows 7 Professional 64 Bit LG Flatron D2342 (3D) Logitech G510 
PowerCaseMouseMouse Pad
Cooler Master Silent Pro 700W Cooler Master HAF X Razer Mamba 2012 (4G) Razer Vespula 
AudioOtherOtherOther
Creative X-FI Fatal1ty G25 Platinum MyDrive 1 TB ocean-blue Logitech Z623 
  hide details  
Reply
Amd/Ati
(20 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8150 Asus Crosshair V Formula Gigabyte GV-R697UD-2GD Corsair Dominator GT 1866 CL9 
Hard DriveHard DriveOptical DriveOptical Drive
Corsair Force GT 60GB Samsung Spinpoint F1 1TB Blu-Ray Drive Samsung Plextor PX-L890SA 
CoolingOSMonitorKeyboard
Cooler Master V8 Windows 7 Professional 64 Bit LG Flatron D2342 (3D) Logitech G510 
PowerCaseMouseMouse Pad
Cooler Master Silent Pro 700W Cooler Master HAF X Razer Mamba 2012 (4G) Razer Vespula 
AudioOtherOtherOther
Creative X-FI Fatal1ty G25 Platinum MyDrive 1 TB ocean-blue Logitech Z623 
  hide details  
Reply
post #5 of 29
Go for the MSi board. I have a motherboard that supports crossfire @ 8x. Its worth getting the 8x than 4x. In the future if you go with higher cards it will helps. Its not really a good idea of running higher cards @ 4x. Since there's quite big drops. Unlike 8x Vs. 16x not noticeable.
Edited by armen16 - 3/19/11 at 12:27pm
post #6 of 29
x4 will seriously limit it, whereas x8 wont
IIRC wont both then run at x4/x4 or x8/x8? Or that might just be my motherboard

Also is there no ASUS alternative? As MSI doesn't have the best rep when it comes to PWR CPU phases.
Yuki
(20 items)
 
Illya
(20 items)
 
Neptunia
(12 items)
 
CPUMotherboardGraphicsRAM
Intel 2500K 5Ghz ASUS P8P67 Pro EVGA 1080 Ti FTW3 G.Skill RipJaws X 2133Mhz 16GB 
Hard DriveHard DriveHard DriveCooling
240GB Corsair Neutron GTX RAID0 Samsung 850 Evo 1TB WD Red 8TB Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Razer BlackWidow 2013 CoolerMaster V1000 Corsair 760T Artic White Logitech G502 Proteus Spectrum 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL ASUS Xonar DX Schiit Magni Sennheiser HD650 
CPUMotherboardGraphicsRAM
Intel Core i7 Skylake-E X190 Nvidia Titan Volta 32GB 3200Mhz DDR4 
Hard DriveHard DriveHard DriveCooling
Samsung 960 Pro 512GB Samsung 850 Evo 1TB 8TB WD Red Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Ducky Shine CoolerMaster V1000 Corsair 760T Artic White Logitech G502 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL Asus Xonar DX Schiit Magni Sennhesier HD650 
CPUMotherboardGraphicsRAM
Core i5 6600 3.3Ghz Asus Z170M Pro AMD RX460 G.Skill 16GB 2133Mhz 
Hard DriveOSMonitorKeyboard
Samsung 850 M.2 256GB Windows 10 LG 34" 3440x1440 Ducky Shine 3 
PowerCaseMouseMouse Pad
CoolerMaster Vanguard 450W BitFenix Phenom Logitech G700S CoolerMaster Swift-RX 
  hide details  
Reply
Yuki
(20 items)
 
Illya
(20 items)
 
Neptunia
(12 items)
 
CPUMotherboardGraphicsRAM
Intel 2500K 5Ghz ASUS P8P67 Pro EVGA 1080 Ti FTW3 G.Skill RipJaws X 2133Mhz 16GB 
Hard DriveHard DriveHard DriveCooling
240GB Corsair Neutron GTX RAID0 Samsung 850 Evo 1TB WD Red 8TB Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Razer BlackWidow 2013 CoolerMaster V1000 Corsair 760T Artic White Logitech G502 Proteus Spectrum 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL ASUS Xonar DX Schiit Magni Sennheiser HD650 
CPUMotherboardGraphicsRAM
Intel Core i7 Skylake-E X190 Nvidia Titan Volta 32GB 3200Mhz DDR4 
Hard DriveHard DriveHard DriveCooling
Samsung 960 Pro 512GB Samsung 850 Evo 1TB 8TB WD Red Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Ducky Shine CoolerMaster V1000 Corsair 760T Artic White Logitech G502 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL Asus Xonar DX Schiit Magni Sennhesier HD650 
CPUMotherboardGraphicsRAM
Core i5 6600 3.3Ghz Asus Z170M Pro AMD RX460 G.Skill 16GB 2133Mhz 
Hard DriveOSMonitorKeyboard
Samsung 850 M.2 256GB Windows 10 LG 34" 3440x1440 Ducky Shine 3 
PowerCaseMouseMouse Pad
CoolerMaster Vanguard 450W BitFenix Phenom Logitech G700S CoolerMaster Swift-RX 
  hide details  
Reply
post #7 of 29
Thread Starter 
Quote:
Originally Posted by thealex132 View Post
x4 will seriously limit it, whereas x8 wont
IIRC wont both then run at x4/x4 or x8/x8? Or that might just be my motherboard

Also is there no ASUS alternative? As MSI doesn't have the best rep when it comes to PWR CPU phases.
Thanks for the responses. Asus doesn't really have much in the price range (trying to keep the prices low).

I guess I will bump it up to the MSI. I wish I knew more about the mobo though - MSI doesn't even show it on their website!
I Shoot to Maim
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700k @ 4.5Ghz Gigabyte GA-Z170X Gaming 7 EVGA GTX 1080 SC ACX 3.0 Crucial 2x8GB DDR4 3200MHz 
Hard DriveHard DriveOptical DriveCooling
480GB Sandisk Extreme Pro 2TB WD Black 7200RPM Blu-Ray Reader/Burner NZXT Kraken x61 Watercooler 
OSMonitorKeyboardPower
Window 10 Dell S2716DGR + Qnix 1440p @ 96Hz + Asus 27" 1080p Logitech G910 Orion Spark Mechanical EVGA GQ 850 watt 
CaseMouseMouse PadAudio
Corsair Carbide 500R Anker 8200DPI SteelSeries QcK Gaming  Logitech Z623 
  hide details  
Reply
I Shoot to Maim
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700k @ 4.5Ghz Gigabyte GA-Z170X Gaming 7 EVGA GTX 1080 SC ACX 3.0 Crucial 2x8GB DDR4 3200MHz 
Hard DriveHard DriveOptical DriveCooling
480GB Sandisk Extreme Pro 2TB WD Black 7200RPM Blu-Ray Reader/Burner NZXT Kraken x61 Watercooler 
OSMonitorKeyboardPower
Window 10 Dell S2716DGR + Qnix 1440p @ 96Hz + Asus 27" 1080p Logitech G910 Orion Spark Mechanical EVGA GQ 850 watt 
CaseMouseMouse PadAudio
Corsair Carbide 500R Anker 8200DPI SteelSeries QcK Gaming  Logitech Z623 
  hide details  
Reply
post #8 of 29
go for the x16/x8 one.
ASUS G750JW
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel® Core™ i7-4700HQ Mobile Intel® HM87 NVIDIA® GeForce® GTX 765M with 2GB GDDR5 VRAM 8GB DDR3 1600MHz  
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB SSD 1TB hard drive (5400 rpm) Multiformat DVD±RW/CD-RW drive Stock Cooling 
OSMonitorKeyboardPower
Windows 8.1 17.3” anti-glare FHD LED backlit (1920 x 1080) Onboard 41.0cm x 31.8cm x 1.7-5.0cm, 4.5Kg (8-cell batt... 
CaseMouseMouse PadAudio
ASUS G750JW  Razer Deathadder 2013 XTRAC PADS Ripper Optical Mouse pad Onboard 
  hide details  
Reply
ASUS G750JW
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel® Core™ i7-4700HQ Mobile Intel® HM87 NVIDIA® GeForce® GTX 765M with 2GB GDDR5 VRAM 8GB DDR3 1600MHz  
Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB SSD 1TB hard drive (5400 rpm) Multiformat DVD±RW/CD-RW drive Stock Cooling 
OSMonitorKeyboardPower
Windows 8.1 17.3” anti-glare FHD LED backlit (1920 x 1080) Onboard 41.0cm x 31.8cm x 1.7-5.0cm, 4.5Kg (8-cell batt... 
CaseMouseMouse PadAudio
ASUS G750JW  Razer Deathadder 2013 XTRAC PADS Ripper Optical Mouse pad Onboard 
  hide details  
Reply
post #9 of 29
Quote:
Originally Posted by seabiscuit68 View Post
Thanks for the responses. Asus doesn't really have much in the price range (trying to keep the prices low).

I guess I will bump it up to the MSI. I wish I knew more about the mobo though - MSI doesn't even show it on their website!
Hmmm, I'm very wery of MSI motherboards, my current one is dying and trying to take my RAM, CPU and GPU with it
Yuki
(20 items)
 
Illya
(20 items)
 
Neptunia
(12 items)
 
CPUMotherboardGraphicsRAM
Intel 2500K 5Ghz ASUS P8P67 Pro EVGA 1080 Ti FTW3 G.Skill RipJaws X 2133Mhz 16GB 
Hard DriveHard DriveHard DriveCooling
240GB Corsair Neutron GTX RAID0 Samsung 850 Evo 1TB WD Red 8TB Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Razer BlackWidow 2013 CoolerMaster V1000 Corsair 760T Artic White Logitech G502 Proteus Spectrum 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL ASUS Xonar DX Schiit Magni Sennheiser HD650 
CPUMotherboardGraphicsRAM
Intel Core i7 Skylake-E X190 Nvidia Titan Volta 32GB 3200Mhz DDR4 
Hard DriveHard DriveHard DriveCooling
Samsung 960 Pro 512GB Samsung 850 Evo 1TB 8TB WD Red Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Ducky Shine CoolerMaster V1000 Corsair 760T Artic White Logitech G502 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL Asus Xonar DX Schiit Magni Sennhesier HD650 
CPUMotherboardGraphicsRAM
Core i5 6600 3.3Ghz Asus Z170M Pro AMD RX460 G.Skill 16GB 2133Mhz 
Hard DriveOSMonitorKeyboard
Samsung 850 M.2 256GB Windows 10 LG 34" 3440x1440 Ducky Shine 3 
PowerCaseMouseMouse Pad
CoolerMaster Vanguard 450W BitFenix Phenom Logitech G700S CoolerMaster Swift-RX 
  hide details  
Reply
Yuki
(20 items)
 
Illya
(20 items)
 
Neptunia
(12 items)
 
CPUMotherboardGraphicsRAM
Intel 2500K 5Ghz ASUS P8P67 Pro EVGA 1080 Ti FTW3 G.Skill RipJaws X 2133Mhz 16GB 
Hard DriveHard DriveHard DriveCooling
240GB Corsair Neutron GTX RAID0 Samsung 850 Evo 1TB WD Red 8TB Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Razer BlackWidow 2013 CoolerMaster V1000 Corsair 760T Artic White Logitech G502 Proteus Spectrum 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL ASUS Xonar DX Schiit Magni Sennheiser HD650 
CPUMotherboardGraphicsRAM
Intel Core i7 Skylake-E X190 Nvidia Titan Volta 32GB 3200Mhz DDR4 
Hard DriveHard DriveHard DriveCooling
Samsung 960 Pro 512GB Samsung 850 Evo 1TB 8TB WD Red Corsair H115i GTX 
CoolingOSMonitorMonitor
EK Vardar fans Windows 10 Dell u2713hm Apple Cinema Display 
KeyboardPowerCaseMouse
Ducky Shine CoolerMaster V1000 Corsair 760T Artic White Logitech G502 
Mouse PadAudioAudioAudio
CoolerMaster Swift-RX XL Asus Xonar DX Schiit Magni Sennhesier HD650 
CPUMotherboardGraphicsRAM
Core i5 6600 3.3Ghz Asus Z170M Pro AMD RX460 G.Skill 16GB 2133Mhz 
Hard DriveOSMonitorKeyboard
Samsung 850 M.2 256GB Windows 10 LG 34" 3440x1440 Ducky Shine 3 
PowerCaseMouseMouse Pad
CoolerMaster Vanguard 450W BitFenix Phenom Logitech G700S CoolerMaster Swift-RX 
  hide details  
Reply
post #10 of 29
Quote:
Originally Posted by thealex132 View Post
x4 will seriously limit it, whereas x8 wont
IIRC wont both then run at x4/x4 or x8/x8? Or that might just be my motherboard

Also is there no ASUS alternative? As MSI doesn't have the best rep when it comes to PWR CPU phases.
Their AMD motherboards are questionable, but as far as I know their Intel boards are nothing but excelent.
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
Dunno
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 3550 Asrock P67 Extreme4 Gen3 MSI HD7850 1GB Kingston Hyperx Blu 2x2GB 
RAMHard DriveHard DriveCooling
Kingston Hyperx Blu 2x4GB Samsung Spinpoint F3 1tb Intel 330 60Gb SSD Scythe Mugen 2 
OSMonitorMonitorPower
Windows 8 Pro Acer AL2416W Samsung 940n Chieftec 750w 
Case
Thermaltake V4 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › CrossfireX at x4 vs x8