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Sapphire hd 7950 overclocking issues

post #1 of 3
Thread Starter 
Hi all,

I currently own a Sapphire AMD Radeon HD 7950 3GB with Boost

I have been trying to overclock this card and I am able to achieve 1150Mhz on core and 1400Mhz memory.

However, my performance worsens compared to stock.

How can I go about finding a solution to the problem? Am I experiencing a severe bottleneck?

Here are my system specs:

Intel Core i5-3570K (4.2 GHz)
AsRock Z77 Extreme4
Kingston Technology XMP Beast Series 8GB 1866MHz
Sandisk Extreme 120gb and Western Digital Caviar Green1TB
Sapphire HD 7950 3GB (1150 | 1400)
EK-KIT H3O 240 LTX + XSPC 750 Res/Pump Combo
Cooler Master GX-750W
Cooler Master HAF X
3x HP Pavilion 22xi IPS
Corsair Vengeance M65
Corsair Vengeance K90

Edited by detroid - 8/2/13 at 7:42am
 
LeatherFace 1974
(14 items)
 
Black Leather
(13 items)
 
CPUMotherboardGraphicsRAM
i5 3570K (4.4Ghz @1.28) AsRock Extreme 4 Z77 Sapphire HD 7950 Kingston Hyper X Beast 
Hard DriveHard DriveOptical DriveCooling
SanDisk Extreme Western Digital Caviar Green  DVD RAM  EK CoolStream Radiator XT 240mm 
CoolingCoolingOSMonitor
EK Supreme LTX CPU Block XSPC X20 750 Pump V4 and Dual Reservoir Combo  Windows 8 Pro x64 3x HP Pavilion 22xi 
KeyboardPowerCaseMouse
Corsair Vengeance K90 Coolermaster GX 750W  Coolermaster HAF X Corsair Vengeance M65 
Mouse PadAudioAudioAudio
Razer Goliathus Fragged Creative Sound Blaster X-Fi PRO Logitech Z553 Roccat Kave  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 960T (4.1Ghz | 1.39v) Asus Crosshair IV Formula Palit GTX 560 Ti 448 Core  Corsair Vengeance 8GB (1667Mhz) 
Hard DriveOptical DriveCoolingOS
Hitachi1TB, Seagate 500GB  22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM EK-KIT H3O 240 LTX  Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
Philips 247E3LPHSU 23.6 inch LED  Razer Lycosa Gaming Keyboard Coolermaster GX-750W NZXT Phantom  
MouseMouse Pad
Razer Abyssus Mirror 3500DPI Gaming Mouse Razer Goliathus Fragged Gaming Mouse Mat  
CPUMotherboardGraphicsRAM
AMD PHENOM II X4 B50 @ 3.60ghz from X2 550 BE Asrock M3A785GXH/128M  2x XFX HD Radeon 5830 Crossfire 6GB DDR-3 OCZ 1333Mhz 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.11 320GB 3.5 SATA 22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM ARCTIC FREEZER XTREME REV 2 Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
ASUS VH222H 22" Logitech EX100 Wirless 750W ORYXX ULTRA GAMERS Black Ultimate Gaming Case. 
Mouse
Logitech EX100 Wireless 
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LeatherFace 1974
(14 items)
 
Black Leather
(13 items)
 
CPUMotherboardGraphicsRAM
i5 3570K (4.4Ghz @1.28) AsRock Extreme 4 Z77 Sapphire HD 7950 Kingston Hyper X Beast 
Hard DriveHard DriveOptical DriveCooling
SanDisk Extreme Western Digital Caviar Green  DVD RAM  EK CoolStream Radiator XT 240mm 
CoolingCoolingOSMonitor
EK Supreme LTX CPU Block XSPC X20 750 Pump V4 and Dual Reservoir Combo  Windows 8 Pro x64 3x HP Pavilion 22xi 
KeyboardPowerCaseMouse
Corsair Vengeance K90 Coolermaster GX 750W  Coolermaster HAF X Corsair Vengeance M65 
Mouse PadAudioAudioAudio
Razer Goliathus Fragged Creative Sound Blaster X-Fi PRO Logitech Z553 Roccat Kave  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 960T (4.1Ghz | 1.39v) Asus Crosshair IV Formula Palit GTX 560 Ti 448 Core  Corsair Vengeance 8GB (1667Mhz) 
Hard DriveOptical DriveCoolingOS
Hitachi1TB, Seagate 500GB  22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM EK-KIT H3O 240 LTX  Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
Philips 247E3LPHSU 23.6 inch LED  Razer Lycosa Gaming Keyboard Coolermaster GX-750W NZXT Phantom  
MouseMouse Pad
Razer Abyssus Mirror 3500DPI Gaming Mouse Razer Goliathus Fragged Gaming Mouse Mat  
CPUMotherboardGraphicsRAM
AMD PHENOM II X4 B50 @ 3.60ghz from X2 550 BE Asrock M3A785GXH/128M  2x XFX HD Radeon 5830 Crossfire 6GB DDR-3 OCZ 1333Mhz 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.11 320GB 3.5 SATA 22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM ARCTIC FREEZER XTREME REV 2 Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
ASUS VH222H 22" Logitech EX100 Wirless 750W ORYXX ULTRA GAMERS Black Ultimate Gaming Case. 
Mouse
Logitech EX100 Wireless 
  hide details  
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post #2 of 3
firstly max out power control to +20% to avoid clock throttling. secondly did you test your card for stability at stock speeds first. thirdly what drivers are you using. use 13.6 beta 2 or 13.8 beta 1 .

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst13-8WINBetaDriver.aspx

test your card at stock speeds thoroughly and make sure the performance is as expected in benchmarks and games. then increase core clocks in 25 mhz steps while keeping memory at stock 1250 mhz and run a benchmark like 3dmark 2013 or heaven 4.0 . you should see a gradual and consistent increase in perf as you increase core clocks from stock 925 mhz all the way upto 1150 mhz. if you don't there is a issue.
Fragbox
(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
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Fragbox
(14 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5 2400 DH67BL AMD Radeon HD 6900 Series XFX HD 6950 2GB 
RAMRAMHard DriveOptical Drive
Corsair Corsair DDR3 1333 Mhz 2 GB Corsair DDR3 1333 Mhz 2 GB Western Digital Caviar Green SONY DVD-RW AD-7260S 
OSMonitorKeyboardPower
Windows 7 Professional 32 bit BENQ G2420HD Logitech K200 Seasonic VX550 psu 
CaseMouse
ANTEC 200 V2 Logitech mouse 
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post #3 of 3
Thread Starter 
Hi, I will do as you say. Thanks for advice.

I use 13.4 at the moment. Maybe I will update the drivers.

And i have constantly tested the card at stock and it works the way it should work. it perfoms well.

I will keep you informed if the issue persists.

thanks allot biggrin.gif
 
LeatherFace 1974
(14 items)
 
Black Leather
(13 items)
 
CPUMotherboardGraphicsRAM
i5 3570K (4.4Ghz @1.28) AsRock Extreme 4 Z77 Sapphire HD 7950 Kingston Hyper X Beast 
Hard DriveHard DriveOptical DriveCooling
SanDisk Extreme Western Digital Caviar Green  DVD RAM  EK CoolStream Radiator XT 240mm 
CoolingCoolingOSMonitor
EK Supreme LTX CPU Block XSPC X20 750 Pump V4 and Dual Reservoir Combo  Windows 8 Pro x64 3x HP Pavilion 22xi 
KeyboardPowerCaseMouse
Corsair Vengeance K90 Coolermaster GX 750W  Coolermaster HAF X Corsair Vengeance M65 
Mouse PadAudioAudioAudio
Razer Goliathus Fragged Creative Sound Blaster X-Fi PRO Logitech Z553 Roccat Kave  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 960T (4.1Ghz | 1.39v) Asus Crosshair IV Formula Palit GTX 560 Ti 448 Core  Corsair Vengeance 8GB (1667Mhz) 
Hard DriveOptical DriveCoolingOS
Hitachi1TB, Seagate 500GB  22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM EK-KIT H3O 240 LTX  Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
Philips 247E3LPHSU 23.6 inch LED  Razer Lycosa Gaming Keyboard Coolermaster GX-750W NZXT Phantom  
MouseMouse Pad
Razer Abyssus Mirror 3500DPI Gaming Mouse Razer Goliathus Fragged Gaming Mouse Mat  
CPUMotherboardGraphicsRAM
AMD PHENOM II X4 B50 @ 3.60ghz from X2 550 BE Asrock M3A785GXH/128M  2x XFX HD Radeon 5830 Crossfire 6GB DDR-3 OCZ 1333Mhz 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.11 320GB 3.5 SATA 22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM ARCTIC FREEZER XTREME REV 2 Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
ASUS VH222H 22" Logitech EX100 Wirless 750W ORYXX ULTRA GAMERS Black Ultimate Gaming Case. 
Mouse
Logitech EX100 Wireless 
  hide details  
Reply
 
LeatherFace 1974
(14 items)
 
Black Leather
(13 items)
 
CPUMotherboardGraphicsRAM
i5 3570K (4.4Ghz @1.28) AsRock Extreme 4 Z77 Sapphire HD 7950 Kingston Hyper X Beast 
Hard DriveHard DriveOptical DriveCooling
SanDisk Extreme Western Digital Caviar Green  DVD RAM  EK CoolStream Radiator XT 240mm 
CoolingCoolingOSMonitor
EK Supreme LTX CPU Block XSPC X20 750 Pump V4 and Dual Reservoir Combo  Windows 8 Pro x64 3x HP Pavilion 22xi 
KeyboardPowerCaseMouse
Corsair Vengeance K90 Coolermaster GX 750W  Coolermaster HAF X Corsair Vengeance M65 
Mouse PadAudioAudioAudio
Razer Goliathus Fragged Creative Sound Blaster X-Fi PRO Logitech Z553 Roccat Kave  
CPUMotherboardGraphicsRAM
AMD Phenom II X4 960T (4.1Ghz | 1.39v) Asus Crosshair IV Formula Palit GTX 560 Ti 448 Core  Corsair Vengeance 8GB (1667Mhz) 
Hard DriveOptical DriveCoolingOS
Hitachi1TB, Seagate 500GB  22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM EK-KIT H3O 240 LTX  Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
Philips 247E3LPHSU 23.6 inch LED  Razer Lycosa Gaming Keyboard Coolermaster GX-750W NZXT Phantom  
MouseMouse Pad
Razer Abyssus Mirror 3500DPI Gaming Mouse Razer Goliathus Fragged Gaming Mouse Mat  
CPUMotherboardGraphicsRAM
AMD PHENOM II X4 B50 @ 3.60ghz from X2 550 BE Asrock M3A785GXH/128M  2x XFX HD Radeon 5830 Crossfire 6GB DDR-3 OCZ 1333Mhz 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.11 320GB 3.5 SATA 22x HITACHI LG DVDRAM GH41N, SONY 16X DVD ROM ARCTIC FREEZER XTREME REV 2 Windows 7 Ultimate 64 Bit Edition 
MonitorKeyboardPowerCase
ASUS VH222H 22" Logitech EX100 Wirless 750W ORYXX ULTRA GAMERS Black Ultimate Gaming Case. 
Mouse
Logitech EX100 Wireless 
  hide details  
Reply
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