Overclock.net › Forums › Graphics Cards › Graphics Cards - General › From x16 1.0 to... x8 2.0 ...
New Posts  All Forums:Forum Nav:

From x16 1.0 to... x8 2.0 ...

post #1 of 3
Thread Starter 
Hello all,

I'm planning on mobo replacement.

I always used x16 2.0 gfx cards on my old x16 1.0 slot.

While i thought having a boost once using it on the new x16 2.0 slot, i discovered many links :

http://www.hardocp.com/article/2010/...x16x16_vs_x4x4
http://www.techpowerup.com/reviews/N...caling/24.html
http://www.techpowerup.com/reviews/A...caling/25.html
http://hardwareforall.com/hwdb/x16.html
http://hardwareforall.com/tt/nvidia2.html

Finally, i'm "shocked"...

Indeed, i always was conscious about bandwidths and always studying the best ratios to avoid such incoherences as using external classic hard drives @ USB3 enclosures ... a transport way completely "unused"...

Well, i admit have been disappointed by not having studied graphics cards bandwidths.

But, while i always found numerical values for any device (transfer speeds, bandwidth i/o slots, etc...), values for gfx cards seem so obscure...

While the pci-e bandwidth is know, i can't find the values for gfx cards...

Many values can be found anyway :

http://en.wikipedia.org/wiki/Compari...6xxx.29_series

But, all articles/reviews state : "gfx cards are far from saturating pci-e 2.0 bandwidth"... Well, in which numbers is it stated ??

I can't find a clear & simple answer to the simple question : "which max bandwidth can be used / is needed by such gfx card model ?"

Furthermore, other paramters have to be considered (fps, etc...).

By the way, if i migrate from x16 1.0 to x8 2.0 : same performance ?

Indeed, question has to be asked : x16 1.0 bw = x8 2.0 bw, but i consider the fact that number of lanes can also impact performance (as asking differences between 1 * 2GB RAM or 2 * 1GB RAM).

Thank you very much for considering this.

Sincerely,

XZed
bubulle_b0x
(13 items)
 
  
CPUMotherboardRAMHard Drive
Intel Pentium Dual-Core E5300 Gigabyte GA-73PVM-S2H 2 Go DDR2-800 CL6 250Go ES.2 - PERC 6/i : 8*1To 7200.12 (RAID6) 
Optical DriveOSPowerCase
Optiarc AD-7240S Windows 7 Corsair CX400 Cooler Master Elite 310 
  hide details  
Reply
bubulle_b0x
(13 items)
 
  
CPUMotherboardRAMHard Drive
Intel Pentium Dual-Core E5300 Gigabyte GA-73PVM-S2H 2 Go DDR2-800 CL6 250Go ES.2 - PERC 6/i : 8*1To 7200.12 (RAID6) 
Optical DriveOSPowerCase
Optiarc AD-7240S Windows 7 Corsair CX400 Cooler Master Elite 310 
  hide details  
Reply
post #2 of 3
TLDR

They have the same bandwidth.
Waiting on X399
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II B57 @ X4 3.9 Gigabyte 790FXTA-UD5 Sapphire Radeon 290 8 GB G.Skill 2133 
Hard DriveCoolingOSKeyboard
250 GB 840 EVO Noctua NH-D14 Windows 10 Logitech K350 
PowerCaseMouseMouse Pad
Seasonic x750 Corsair 600T Logitech G100s Razer Goliathus Speed 
Audio
Plantronics Gamecom 788 
  hide details  
Reply
Waiting on X399
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II B57 @ X4 3.9 Gigabyte 790FXTA-UD5 Sapphire Radeon 290 8 GB G.Skill 2133 
Hard DriveCoolingOSKeyboard
250 GB 840 EVO Noctua NH-D14 Windows 10 Logitech K350 
PowerCaseMouseMouse Pad
Seasonic x750 Corsair 600T Logitech G100s Razer Goliathus Speed 
Audio
Plantronics Gamecom 788 
  hide details  
Reply
post #3 of 3
Thread Starter 
Thank you
bubulle_b0x
(13 items)
 
  
CPUMotherboardRAMHard Drive
Intel Pentium Dual-Core E5300 Gigabyte GA-73PVM-S2H 2 Go DDR2-800 CL6 250Go ES.2 - PERC 6/i : 8*1To 7200.12 (RAID6) 
Optical DriveOSPowerCase
Optiarc AD-7240S Windows 7 Corsair CX400 Cooler Master Elite 310 
  hide details  
Reply
bubulle_b0x
(13 items)
 
  
CPUMotherboardRAMHard Drive
Intel Pentium Dual-Core E5300 Gigabyte GA-73PVM-S2H 2 Go DDR2-800 CL6 250Go ES.2 - PERC 6/i : 8*1To 7200.12 (RAID6) 
Optical DriveOSPowerCase
Optiarc AD-7240S Windows 7 Corsair CX400 Cooler Master Elite 310 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards - General
Overclock.net › Forums › Graphics Cards › Graphics Cards - General › From x16 1.0 to... x8 2.0 ...