Overclock.net › Forums › Graphics Cards › AMD/ATI › x8 x8 x4 vs x16 x8 x8
New Posts  All Forums:Forum Nav:

x8 x8 x4 vs x16 x8 x8

post #1 of 13
Thread Starter 
I'm considering building a intel 1155 system.

P8P67 Deluxe B3 to run 6950 in tri-fire (x8 x8 x4) but it seems as this might not be a good idea on 5760*1080 resolution.

I'm currently on m4a79t AM3 system and can can do dual 16x/16x, triple 16x/8x/8x or quad 8x/8x/8x/8x.

Seems best to just hold on to the phenom ~4ghz and tri/quad 6950?
Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 5820k Stock clocks Gigabyte X99 UD4 2x EVGA GTX 1080 FE SLI  Corsair 64GB (4x16GB) DDR4 2133MHz CL13 Vengean... 
Hard DriveCoolingOSMonitor
Intel 530 M.2 SSD 180GB OS + Samsung 850 EVO st... Mugen 4 push pull Win 7 64bit home prem Acer 27" XG270HU 144hz TN + LG Oled 4k TV 
PowerCaseMouseMouse Pad
EVGA T2 1600W Fractal XL R2 CM Xornet Steelseries Qck+ 45cm black 
Audio
Sennheiser RS185 wireless headphones 
  hide details  
Reply
Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 5820k Stock clocks Gigabyte X99 UD4 2x EVGA GTX 1080 FE SLI  Corsair 64GB (4x16GB) DDR4 2133MHz CL13 Vengean... 
Hard DriveCoolingOSMonitor
Intel 530 M.2 SSD 180GB OS + Samsung 850 EVO st... Mugen 4 push pull Win 7 64bit home prem Acer 27" XG270HU 144hz TN + LG Oled 4k TV 
PowerCaseMouseMouse Pad
EVGA T2 1600W Fractal XL R2 CM Xornet Steelseries Qck+ 45cm black 
Audio
Sennheiser RS185 wireless headphones 
  hide details  
Reply
post #2 of 13
the performance difference will be negligible. you will see slightly more frame rate drops, but not enough to hinder playability.

http://www.hardocp.com/article/2010/...16x16_vs_x4x4/





    
CPUMotherboardGraphicsRAM
I5 2500K 4.7ghz 1.36v MSI Z68A-GD80 (G3) MSI GTX 680 TFIII 4GB SLI 1248mhz core 6.5ghz mem 16GB Patriot Viper X Div 2 
Hard DriveOptical DriveOSMonitor
2xM4 64 GB Raid 0 4x5900rpm Baracuda Raid 0 Pioneer BDR Windows 7 Home Premium Triple Asus 27" monitors 
KeyboardPowerCaseMouse
Tt Challenger Ultimate Corsair AX-1200 NZXT Switch 810 Mionix Naos 5000 
Mouse Pad
Mionix Propus 380 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
I5 2500K 4.7ghz 1.36v MSI Z68A-GD80 (G3) MSI GTX 680 TFIII 4GB SLI 1248mhz core 6.5ghz mem 16GB Patriot Viper X Div 2 
Hard DriveOptical DriveOSMonitor
2xM4 64 GB Raid 0 4x5900rpm Baracuda Raid 0 Pioneer BDR Windows 7 Home Premium Triple Asus 27" monitors 
KeyboardPowerCaseMouse
Tt Challenger Ultimate Corsair AX-1200 NZXT Switch 810 Mionix Naos 5000 
Mouse Pad
Mionix Propus 380 
  hide details  
Reply
post #3 of 13
Quote:
Originally Posted by grandpatzer View Post
I'm considering building a intel 1155 system.

P8P67 Deluxe B3 to run 6950 in tri-fire (x8 x8 x4) but it seems as this might not be a good idea on 5760*1080 resolution.

I'm currently on m4a79t AM3 system and can can do dual 16x/16x, triple 16x/8x/8x or quad 8x/8x/8x/8x.

Seems best to just hold on to the phenom ~4ghz and tri/quad 6950?
Neither is a good way.
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
I do not think you read that all the way through. It does say that at 5760x1080 they saw a drop in performance at that res with x8 and certainly more at x4. The OP is running eyefinity so that x4 drop will bottleneck him for sure.

Quote:
Originally Posted by microfister View Post
the performance difference will be negligible. you will see slightly more frame rate drops, but not enough to hinder playability.

http://www.hardocp.com/article/2010/...16x16_vs_x4x4/





post #5 of 13
Quote:
Originally Posted by Topgearfan View Post
I do not think you read that all the way through. It does say that at 5760x1080 they saw a drop in performance at that res with x8 and certainly more at x4. The OP is running eyefinity so that x4 drop will bottleneck him for sure.
of course there will be more drops in FPS with an x4 in the mix, i did state it above. but as shown by Hardocp the drop in FPS is still pretty negligible with x4x4, the only game that dropped below 30 FPS was Metro, and its a vram hog(2.2gb of my 3gb gets used @ 5760x1080). any games like that (shogun total war 2 will still drop to 0 FPS with trisli 580s) will obviously suffer.
    
CPUMotherboardGraphicsRAM
I5 2500K 4.7ghz 1.36v MSI Z68A-GD80 (G3) MSI GTX 680 TFIII 4GB SLI 1248mhz core 6.5ghz mem 16GB Patriot Viper X Div 2 
Hard DriveOptical DriveOSMonitor
2xM4 64 GB Raid 0 4x5900rpm Baracuda Raid 0 Pioneer BDR Windows 7 Home Premium Triple Asus 27" monitors 
KeyboardPowerCaseMouse
Tt Challenger Ultimate Corsair AX-1200 NZXT Switch 810 Mionix Naos 5000 
Mouse Pad
Mionix Propus 380 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
I5 2500K 4.7ghz 1.36v MSI Z68A-GD80 (G3) MSI GTX 680 TFIII 4GB SLI 1248mhz core 6.5ghz mem 16GB Patriot Viper X Div 2 
Hard DriveOptical DriveOSMonitor
2xM4 64 GB Raid 0 4x5900rpm Baracuda Raid 0 Pioneer BDR Windows 7 Home Premium Triple Asus 27" monitors 
KeyboardPowerCaseMouse
Tt Challenger Ultimate Corsair AX-1200 NZXT Switch 810 Mionix Naos 5000 
Mouse Pad
Mionix Propus 380 
  hide details  
Reply
post #6 of 13
Quote:
Originally Posted by microfister View Post
of course there will be more drops in FPS with an x4 in the mix, i did state it above. but as shown by Hardocp the drop in FPS is still pretty negligible with x4x4, the only game that dropped below 30 FPS was Metro, and its a vram hog(2.2gb of my 3gb gets used @ 5760x1080). any games like that (shogun total war 2 will still drop to 0 FPS with trisli 580s) will obviously suffer.
Hocp has done a bit of questionable bandwidth testing, especially on the highend. Read the 580 tri sli versus 6990/6970 thread. Their 580 testing used a 580 at x4 and it got mopped up by the 6990/6970 at x16/x16. Minimal differences lol, right. Guess what happened when they re-ran the tests w/o handicapping the 580s?
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 #7 of 13
Thread Starter 
So is it good to run 16x 8x 8x on my M4a79t AMD 790FX/SB750
Tri-Fire 3x 6950

5760*1080 2gb VRAM
Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 5820k Stock clocks Gigabyte X99 UD4 2x EVGA GTX 1080 FE SLI  Corsair 64GB (4x16GB) DDR4 2133MHz CL13 Vengean... 
Hard DriveCoolingOSMonitor
Intel 530 M.2 SSD 180GB OS + Samsung 850 EVO st... Mugen 4 push pull Win 7 64bit home prem Acer 27" XG270HU 144hz TN + LG Oled 4k TV 
PowerCaseMouseMouse Pad
EVGA T2 1600W Fractal XL R2 CM Xornet Steelseries Qck+ 45cm black 
Audio
Sennheiser RS185 wireless headphones 
  hide details  
Reply
Gaming Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 5820k Stock clocks Gigabyte X99 UD4 2x EVGA GTX 1080 FE SLI  Corsair 64GB (4x16GB) DDR4 2133MHz CL13 Vengean... 
Hard DriveCoolingOSMonitor
Intel 530 M.2 SSD 180GB OS + Samsung 850 EVO st... Mugen 4 push pull Win 7 64bit home prem Acer 27" XG270HU 144hz TN + LG Oled 4k TV 
PowerCaseMouseMouse Pad
EVGA T2 1600W Fractal XL R2 CM Xornet Steelseries Qck+ 45cm black 
Audio
Sennheiser RS185 wireless headphones 
  hide details  
Reply
post #8 of 13
Yes, you want 16x 8x 8x. over the 8x 4x 4x. There will be a noticeable difference with eyefinity.
Blue Giant
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 3820 Asus P9X79 MSI GTX 570 in SLI RipjawsX 16GB DDR3 1600 8-8-8-24 
Hard DriveOptical DriveCoolingOS
2TB WD Black Blu-Ray Reader Custom Water Cooling Windows 7 Professional 
PowerCaseAudio
KINGWIN Mach 1 1000w AZZA Solano 1000 Xonar DG 
  hide details  
Reply
Blue Giant
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 3820 Asus P9X79 MSI GTX 570 in SLI RipjawsX 16GB DDR3 1600 8-8-8-24 
Hard DriveOptical DriveCoolingOS
2TB WD Black Blu-Ray Reader Custom Water Cooling Windows 7 Professional 
PowerCaseAudio
KINGWIN Mach 1 1000w AZZA Solano 1000 Xonar DG 
  hide details  
Reply
post #9 of 13
Quote:
Originally Posted by grandpatzer View Post
So is it good to run 16x 8x 8x on my M4a79t AMD 790FX/SB750
Tri-Fire 3x 6950

5760*1080 2gb VRAM
Quote:
Originally Posted by metroidfreak View Post
Yes, you want 16x 8x 8x. over the 8x 4x 4x. There will be a noticeable difference with eyefinity.
Neither way is good with the parts you've chosen. If you went with the P67 w/o Nvidia bridge chip, you will starve your cards but have enough CPU power. On the other hand if you went AMD you will be bottlenecked.

Neither way is a win, two steps forward one step back. What you should do is get a P67/Z68 board with an NF200 Bridge chip. You'll have the bandwidth needed to feed the cards as well as the cpu power.
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 #10 of 13
After my experience with Asus boards and P67, I would recommend the P67 WS board, which has the NF200 controller in it. Some say that it causes more problems than it's worth, but who knows.

I recommend checking out this review on the very subject we're talking about:
http://www.tomshardware.com/reviews/...e,2910-12.html

If you're utilizing higher resolution, such as with eyefinity as you mentioned, it looks like you'll get about 5% increase by going with a p67 WS board versus either the x58 or normal P67.

I'm running eyefinity on P67 with 2x6950s (very overclocked and unlocked), and I've been having no problem with F1 2010 (my main eyefinity game), however things have been ugly in Metro 2033. It just depends what you're playing. If I were to start with a new board and knew I was going Tri-fire, I'd definitely go with p67 WS.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › x8 x8 x4 vs x16 x8 x8