Overclock.net › Forums › Graphics Cards › Graphics Cards - General › GPU Question
New Posts  All Forums:Forum Nav:

GPU Question - Page 2

post #11 of 19
Quote:
Originally Posted by Bima Sylirian View Post
For Radeon HD 5770, it won't be a problem if it runs at PCIe x8 because it does not need much bandwidth. Are you looking for new Graphic Card as well?
Radeon HD 6900 series will be taking noticeable performance hit if they run at PCIe x8.
This is also very true, your GPU will also change your need for bandwidth, also my tests were done with 5770's, I borrowed my friends XFX 5770 to work with my 5770 at stock speeds.
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
post #12 of 19
Quote:
Originally Posted by Bima Sylirian View Post
For Radeon HD 5770, it won't be a problem if it runs at PCIe x8 because it does not need much bandwidth. Are you looking for new Graphic Card as well?
Radeon HD 6900 series will be taking noticeable performance hit if they run at PCIe x8.
Not true even the 6990s dont take much of a hit running x8 or even x4 this has been discussed alot as there is alot of mis conseption on the topic if a 6990 dosent show much decrease there is no way any of the 6950/6970s will

Now there will be a difference in performance obviously but aslong as its x8x8 its no problem and you wont have noticable decreases in performance

ill see if i can dig up the article on it they tested a 6990 at x16 x8 and x4 and the notice was negligable
edit: found it


also 580sli tests


Edited by racer86 - 10/18/11 at 6:57am
post #13 of 19
Quote:
Originally Posted by racer86 View Post
Not true even the 6990s dont take much of a hit running x8 or even x4 this has been discussed alot as there is alot of mis conseption on the topic if a 6990 dosent show much decrease there is no way any of the 6950/6970s will

ill see if i can dig up the article on it they tested a 6990 at x16 x8 and x4 and the notice was negligable
Not that I disagree, but can you post proof so I don't make the mistake again and understand it all better??

I do know as well more bandwidth does increase performance so this is why this doesn't make sense why it doesnt matter that a 6990 would take more bandwidth compared to a 5770
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
post #14 of 19
Quote:
Originally Posted by txtrkandy View Post
Not that I disagree, but can you post proof so I don't make the mistake again and understand it all better??

I do know as well more bandwidth does increase performance so this is why this doesn't make sense why it doesnt matter that a 6990 would take more bandwidth compared to a 5770
i edited my post with video reviews its not that they dont require more bandwidth its that the bandwidth limits at x8 and x4 even dont scale when it comes to performance or fps decreases

even though your halving the bandwidth you dont take that kind of hit on performance as the cards are not that close to maxing out bandwidth to begin with

in the videos hes using 3dmark if i remember right so the difference on there wont be fps but youll get the idea of what the difference is between the bandwiths. As of right now the 590s and 6990s well and now the ASUS Mars II are the only cards comming close to maxing out x16 bandwidth. hence the new PCI-E 3.0 comming out for the next gen of cards. Although i suspect that as long as there not dual gpu cards the new gen shouldnt have any problems in PCI-E 2.0

as i said you will take a hit on performance but it wont be close to what most people think it is its a common misconception that running x8 instead of x16 will kill your performance
Edited by racer86 - 10/18/11 at 7:03am
post #15 of 19
Thread Starter 
Well I was thinking about doing crossfire with 2 6950's because the price for 1 6990 imho is crazy lol and then saving money over time for when all the new goodies come out as of right now there is no point in playing any games until I get my new rig done which won't be started till next March.
Nightmare
(12 items)
 
Wifey Rig
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel i5 3570K Maximus V Formula Z77 AMD Radeon 6990 G.SKILL Ripjaw X 8gigs 
Hard DriveOptical DriveCoolingOS
WD Black 640gig ASUS DRW-24B1ST XSPC Raystorm CPU Block, 2 EX 240 Rads, Koolanc... Win 7 Home Premium 
MonitorKeyboardPowerCase
IPS231P-BN x5 Razer Black Widow Ultimate BF3 Edition Seasonic X 1250 Watt NZXT Phantom Red 
CPUMotherboardGraphicsRAM
AMD Phenom II x4 3.4 Gigabyte 990 FXA-UD3 Sapphire Vapor-X 5750 G.SKILL Ripjaws X Series 8gig DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
WD Carviar Black 640gig ASUS DRW-24B1ST CoolerMaster Hyper 212 Evo Windows 7 Home Premium 64 bit 
MonitorPowerCase
Gateway 22" 1680x1050 Coolermaster 660 Watt Antec DF-30 
CPUGraphicsRAMHard Drive
AMD A6-3670k Club 3D 7950 Royal King Kingston HyperX Genesis Seagate Barracuda 
Optical DriveOSPowerCase
LG Internal 24x DVD-Writer, OEM Windows 7 Ultimate Antec HCG-520M Silverstone SG01-s 
  hide details  
Reply
Nightmare
(12 items)
 
Wifey Rig
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel i5 3570K Maximus V Formula Z77 AMD Radeon 6990 G.SKILL Ripjaw X 8gigs 
Hard DriveOptical DriveCoolingOS
WD Black 640gig ASUS DRW-24B1ST XSPC Raystorm CPU Block, 2 EX 240 Rads, Koolanc... Win 7 Home Premium 
MonitorKeyboardPowerCase
IPS231P-BN x5 Razer Black Widow Ultimate BF3 Edition Seasonic X 1250 Watt NZXT Phantom Red 
CPUMotherboardGraphicsRAM
AMD Phenom II x4 3.4 Gigabyte 990 FXA-UD3 Sapphire Vapor-X 5750 G.SKILL Ripjaws X Series 8gig DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
WD Carviar Black 640gig ASUS DRW-24B1ST CoolerMaster Hyper 212 Evo Windows 7 Home Premium 64 bit 
MonitorPowerCase
Gateway 22" 1680x1050 Coolermaster 660 Watt Antec DF-30 
CPUGraphicsRAMHard Drive
AMD A6-3670k Club 3D 7950 Royal King Kingston HyperX Genesis Seagate Barracuda 
Optical DriveOSPowerCase
LG Internal 24x DVD-Writer, OEM Windows 7 Ultimate Antec HCG-520M Silverstone SG01-s 
  hide details  
Reply
post #16 of 19
Quote:
Originally Posted by Draven73 View Post
Well I was thinking about doing crossfire with 2 6950's because the price for 1 6990 imho is crazy lol and then saving money over time for when all the new goodies come out as of right now there is no point in playing any games until I get my new rig done which won't be started till next March.
You shouldnt see any bottlenecks as far as bandwidth goes on x8 x8 with the 6950s
post #17 of 19
Quote:
Originally Posted by racer86 View Post
i edited my post with video reviews its not that they dont require more bandwidth its that the bandwidth limits at x8 and x4 even dont scale when it comes to performance or fps decreases

even though your halving the bandwidth you dont take that kind of hit on performance as the cards are not that close to maxing out bandwidth to begin with

in the videos hes using 3dmark if i remember right so the difference on there wont be fps but youll get the idea of what the difference is between the bandwiths. As of right now the 590s and 6990s well and now the ASUS Mars II are the only cards comming close to maxing out x16 bandwidth. hence the new PCI-E 3.0 comming out for the next gen of cards. Although i suspect that as long as there not dual gpu cards the new gen shouldnt have any problems in PCI-E 2.0

as i said you will take a hit on performance but it wont be close to what most people think it is its a common misconception that running x8 instead of x16 will kill your performance
Allright, thanks for the info +rep for being willing to help my stubborn self understand

I only noticed like 5-7 FPS difference when I played with different bandwidth's with my 5770's in Crossfire
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
 
noVaKan3: Retired
(15 items)
 
Project: Subaru
(13 items)
 
CPUMotherboardGraphicsRAM
3770K Asrock Z77 Extreme 4 MSI N570GTX TF III@ 905/2050 v1.050 12GB G.SKILL Ripjaws DDR3 
Hard DriveHard DriveOptical DriveOptical Drive
Kingston 64GB SSD Seagate Barracuda 2TB 5900RPM Samsung DVD+RW Drive HP OEM DVD Drive 
CoolingOSMonitorKeyboard
Corsair H100i Windows 7 Home Premium 22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns 
PowerCaseMouseAudio
Corsair Hx620 Modular Corsair 600T Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Phenom II 955@4.1Ghz ASUS M4A88TD-V EVO/USB3 MSI N570GTX TF III@ 900/2200 v1.050 4GB G.SKILL Ripjaws DDR3@1700Mhz 
Hard DriveOptical DriveCoolingOS
Kingston 64GB SSD - Seagate Barracuda 2TB 5900RPM HP DVD Drive Noctua NH-D14 Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
22" HP w2207h- 17" HP vs17 Ducky 1008 MX-Browns Corsair HX 620w Modular Thermaltake Tai Chi 
MouseAudio
Mionix Naos 5000 Klipsch Pro Media v2.1 
CPUMotherboardGraphicsRAM
Athlon II X2 240 Regor Asus M4A785-M EVGA GeFroce 8800GTS 640MB 6GB G.SKILL DDR2 800Mhz 
Hard DriveOSPowerCase
WD Cavier Blue 500GB 7200RPM Windows 7 Ultimate 64bit SP1 500W Seasonic A crap on one 
  hide details  
Reply
post #18 of 19
Quote:
Originally Posted by txtrkandy View Post
Allright, thanks for the info +rep for being willing to help my stubborn self understand

I only noticed like 5-7 FPS difference when I played with different bandwidth's with my 5770's in Crossfire
lol no problem its just a misconseption that a lot of people have

thats about the increase i saw with my 5770s when i went to x16 x16 maby a bit more cuz i was comming from x16 x4 but you really only notice it in benchmarks
post #19 of 19
Thread Starter 
yea but in the benchies it's still not that much, less then a 5% difference? I think I can deal with it lol Racer thank you for all your help.
Nightmare
(12 items)
 
Wifey Rig
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel i5 3570K Maximus V Formula Z77 AMD Radeon 6990 G.SKILL Ripjaw X 8gigs 
Hard DriveOptical DriveCoolingOS
WD Black 640gig ASUS DRW-24B1ST XSPC Raystorm CPU Block, 2 EX 240 Rads, Koolanc... Win 7 Home Premium 
MonitorKeyboardPowerCase
IPS231P-BN x5 Razer Black Widow Ultimate BF3 Edition Seasonic X 1250 Watt NZXT Phantom Red 
CPUMotherboardGraphicsRAM
AMD Phenom II x4 3.4 Gigabyte 990 FXA-UD3 Sapphire Vapor-X 5750 G.SKILL Ripjaws X Series 8gig DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
WD Carviar Black 640gig ASUS DRW-24B1ST CoolerMaster Hyper 212 Evo Windows 7 Home Premium 64 bit 
MonitorPowerCase
Gateway 22" 1680x1050 Coolermaster 660 Watt Antec DF-30 
CPUGraphicsRAMHard Drive
AMD A6-3670k Club 3D 7950 Royal King Kingston HyperX Genesis Seagate Barracuda 
Optical DriveOSPowerCase
LG Internal 24x DVD-Writer, OEM Windows 7 Ultimate Antec HCG-520M Silverstone SG01-s 
  hide details  
Reply
Nightmare
(12 items)
 
Wifey Rig
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel i5 3570K Maximus V Formula Z77 AMD Radeon 6990 G.SKILL Ripjaw X 8gigs 
Hard DriveOptical DriveCoolingOS
WD Black 640gig ASUS DRW-24B1ST XSPC Raystorm CPU Block, 2 EX 240 Rads, Koolanc... Win 7 Home Premium 
MonitorKeyboardPowerCase
IPS231P-BN x5 Razer Black Widow Ultimate BF3 Edition Seasonic X 1250 Watt NZXT Phantom Red 
CPUMotherboardGraphicsRAM
AMD Phenom II x4 3.4 Gigabyte 990 FXA-UD3 Sapphire Vapor-X 5750 G.SKILL Ripjaws X Series 8gig DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
WD Carviar Black 640gig ASUS DRW-24B1ST CoolerMaster Hyper 212 Evo Windows 7 Home Premium 64 bit 
MonitorPowerCase
Gateway 22" 1680x1050 Coolermaster 660 Watt Antec DF-30 
CPUGraphicsRAMHard Drive
AMD A6-3670k Club 3D 7950 Royal King Kingston HyperX Genesis Seagate Barracuda 
Optical DriveOSPowerCase
LG Internal 24x DVD-Writer, OEM Windows 7 Ultimate Antec HCG-520M Silverstone SG01-s 
  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 › GPU Question