Overclock.net › Forums › Graphics Cards › AMD/ATI › Overclocking a 6870, losing performance?
New Posts  All Forums:Forum Nav:

Overclocking a 6870, losing performance? - Page 2

post #11 of 17
Thread Starter 
-bump-
after running furmark for a bit....
915/1050 - 51C 17fps average
945/1050 - 53C 18fps average
965/1100 - 54C 17fps average

this still isnt making sense... anybody?

edit: also no artifacts in any test ever
post #12 of 17
There is indeed a bottleneck and that is the driver. They don't write the driver with an open performance scale in mind, they write it just for the 3d performance clocks and they are 900/1050. The smoothest experience you get is always the stock clocks and there is nothing I can do to fix that unfortunately 23% overclock going to waste.
-A side note, a phenom II cpuis indeed a bottleneck in itself compared with sandy bridge. Sandy is really the next generation stuff, nothing compares unfortunately.
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
post #13 of 17
Unstable memory clocks can degrade performance instead of causing artifacts.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
post #14 of 17
Thread Starter 
Thats lame..
ah well, this card is plenty fast enough anyway
post #15 of 17
I would aim pushing more air through the cooling system by designing a custom air duct(my plan actually). That is a better goal imo. Since the card is already the coolest running radeon I have owned, every improvement in this field is a new record in itself.
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
The Machine
(14 items)
 
Nexus 7 2013
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10 6800K Asus F2A85-V MSI 6870 Hawx, VTX3D 5770, AMD HD6950(RIP), Sap... G.skill Ripjaws PC12800 6-8-6-24 
Hard DriveOptical DriveOSMonitor
Seagate 7200.5 1TB NEC 3540 Dvd-Rom Windows 7 x32 Ultimate Samsung P2350 23" 1080p 
PowerCaseMouseAudio
Seasonic s12-600w CoolerMaster Centurion 5 Logitech G600 Auzen X-Fi Raider 
CPUMotherboardGraphicsRAM
Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
Hard DriveOSMonitorKeyboard
32GB Internal NAND Android 5.0 7" 1920X1200 103% sRGB & 572 cd/m2 LTPS IPS Microsoft Wedge Mobile Keyboard 
PowerAudio
3950mAh/15.01mAh Battery Stereo Speakers 
  hide details  
Reply
post #16 of 17
Your scores are ~200 points away from one another, maybe you ran into a bottleneck elsewhere.
Do you have any other benchmark you can try? Like 3dMarks 11, also make sure you don't have any videos playing in the background, nor any Flash media running.
Shnurok 3.0
(22 items)
 
Alienware M11x
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 920 D0 ASUS Sabertooth X58 PowerColor 6870 G.Skill π 
Hard DriveHard DriveHard DriveCooling
60GB Vertex Turbo WD 1TB Black 500GB Scorpio Blue Stinger Hybrid 
CoolingCoolingCoolingOS
MCP 655 CyberDruid custom Waterfall  MCR320 Win 7 Pro x64 
MonitorKeyboardPowerCase
Dell U2711 DAS Ultimate S Silent XFX XXX 750w PRO CaseLabs M8 
MouseMouse PadAudioAudio
Logitech G500 Razer Destructor ASUS Xonar D2X Logitech G51 
Audio
Corsair H1SA 
CPUMotherboardGraphicsRAM
SU7300 M11Xr1 GT335M 4GB Hynix 
Hard DriveOSMonitorCase
120GB Vertex 2 Windows 7 Home Premium x64 11.6" M11X 
Mouse
Logitech MX Anywhere 
  hide details  
Reply
Shnurok 3.0
(22 items)
 
Alienware M11x
(13 items)
 
 
CPUMotherboardGraphicsRAM
i7 920 D0 ASUS Sabertooth X58 PowerColor 6870 G.Skill π 
Hard DriveHard DriveHard DriveCooling
60GB Vertex Turbo WD 1TB Black 500GB Scorpio Blue Stinger Hybrid 
CoolingCoolingCoolingOS
MCP 655 CyberDruid custom Waterfall  MCR320 Win 7 Pro x64 
MonitorKeyboardPowerCase
Dell U2711 DAS Ultimate S Silent XFX XXX 750w PRO CaseLabs M8 
MouseMouse PadAudioAudio
Logitech G500 Razer Destructor ASUS Xonar D2X Logitech G51 
Audio
Corsair H1SA 
CPUMotherboardGraphicsRAM
SU7300 M11Xr1 GT335M 4GB Hynix 
Hard DriveOSMonitorCase
120GB Vertex 2 Windows 7 Home Premium x64 11.6" M11X 
Mouse
Logitech MX Anywhere 
  hide details  
Reply
post #17 of 17
It has to do with GDDR5 error checking from what I've heard. Unstable memory clocks won't always artifact but instead it can effect performance.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › Overclocking a 6870, losing performance?