Overclock.net › Forums › Graphics Cards › AMD/ATI › How are these clocks?
New Posts  All Forums:Forum Nav:

How are these clocks?

post #1 of 7
Thread Starter 
Reference Sapphire HD6950, BIOS modded to 1536 shaders.

925MHz core
1400MHz memory
GPUV: 1.175V

Max temperature in Furmark: 89C (@92% fan speed)


Hm, should I push it more?


EDIT: Why not? 940/1350 stable. The memory was hitting 101C at 1400MHz so I've lowered that a little--no sense in frying it.
Edited by Phaedrus2129 - 8/19/11 at 3:18pm
post #2 of 7
That seems about right for stock voltage. Temps are getting up there though. Usually any more overclock and you have to bump the voltage more. That's coming from 6990/6970 experience, not 6950 direct experience. Strap a waterblock on it and it will go more with way lower temps obviously.
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
post #3 of 7
Thread Starter 
Yeah, going for 975MHz I had to increase core voltage to 1.2, and it was way hotter. Not worth it. 940MHz is a good number though. 940/1375 it is.
post #4 of 7
Just for giggles can you run your favorite benchie and tell me what your fps and temps are at your 940/1375 vs stock clocks and volts?

I'm wondering if the gain is worth the temps and decibal rise.
post #5 of 7
it is worth the gain to oc it i have a reference HIS 6950 running the 1536 shaders at 920/1375 at 1.1v and i only run 40% fan speed and it doesnt go above 65c but i also have 2 side case fans blowing right at the card so if you have good cooling it is worth doing you will see an improvement over stock clocks



Edit: the side fans are alot quieter at 60-70% than the fan on the card at the same speed
Edited by Anonymous305 - 8/19/11 at 3:43pm
    
CPUMotherboardGraphicsRAM
Phenom II x6 1090t @ 4.0ghz (1.42v) Asus M4A88TD-V Evo/usb3 HIS 6950 2gb unlocked 950/1450 16gb Corsair XMS3 1333 
Hard DriveOptical DriveOSMonitor
WD 500gb Asus dvd/cd rw Win 7 premium x64 24" AOC 1080p 
PowerCase
OCZ ModXStream Pro 700w Homemade Test Bench 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Phenom II x6 1090t @ 4.0ghz (1.42v) Asus M4A88TD-V Evo/usb3 HIS 6950 2gb unlocked 950/1450 16gb Corsair XMS3 1333 
Hard DriveOptical DriveOSMonitor
WD 500gb Asus dvd/cd rw Win 7 premium x64 24" AOC 1080p 
PowerCase
OCZ ModXStream Pro 700w Homemade Test Bench 
  hide details  
Reply
post #6 of 7
Seems very good for reference cooling.
Kalki
(25 items)
 
Alienware
(18 items)
 
ASUS A53Z
(13 items)
 
CPUMotherboardGraphicsRAM
AMD FX-8320 @ 4.73GHz Gigabyte 990FXA-UD3 Radeon HD 7950 @ 1200/1800 8GB Samsung 30nm DDR3 @ 2000MHz 11-11-11-28-1T 
Hard DriveHard DriveHard DriveOptical Drive
128GB Crucial M4 1TB Seagate Barracuda 7200.12 2TB Seagate Barracuda ST 7200 RPM who cares 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Razor HD 7970 XSPC EX240 Swiftech MCP50X 
CoolingCoolingCoolingCooling
Black Ice GT Stealth 240 2x XSPC Xinruilian 1650rpm 2x Yate Loon Slim 1800rpm Alphacool Light Tower 
OSOSMonitorKeyboard
Windows 7 Gentoo GNU/Linux Dell UltraSharp U2412M CM Storm Trigger MX Brown 
PowerCaseMouse
Corsair AX750 Corsair Carbide 300R Logitech G400 
CPUMotherboardGraphicsRAM
AMD OPTERON BULLDOZER 16-CORE 2GHZ (32GHZ TOTAL) ALIENWARE 3+1 PHASE ITX GAMING BOARD 4GB NVIDIA GEFORCE GT 430 32GB GAMING DDR3 800MHZ CL13 
Hard DriveOptical DriveCoolingOS
2TB 5400RPM GAMING HDD GAMING BLU RAY BURNER ONE GAMING CASE FAN UBUNTU W/ UNITY (I AM 1337 H4X0R) 
MonitorKeyboardPowerCase
HD-READY 24" 1366X768 PENTILE TN PANEL GAMING M... ALIENWARE TACTX UBER 1337 BACKLIT RUBBER MEMBRA... OFF-BRAND 200W GAMING PSU; 65% EFFICIENCY  ALIENWARE GAMING CASE WITH THE COOL GLOWING ALIEN 
MouseMouse PadAudioAudio
ALIENWARE TACTX GAMING MOUSE ALIENWARE MOUSEPAD IT'S DESIGNED FOR GAMING AND... BEATS AUDIO 1337 ALIENWARE TACTX 8-CHANNEL GAMING HEADSET/M... 
OtherOther
16 CORES!!!! 4GB VRAM!!!! FASTER THAN 3960X + 7... ALIENWARE GAMING CARPET 
CPUMotherboardGraphicsRAM
AMD A6-3420M OC 2.2GHz / 3GHz Turbo 1.10625v ASUS A53Z AMD Radeon HD 6520G 6GB DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
320GB WD Scorpio Black yes. really good Windows 7 Home Premium 64-bit 
OSMonitorKeyboardPower
Fedora GNU/Linux 1366x768 LED-backlit TN panel Decent + numpad ~5hr 6-cell li-ion 
Audio
Altec Lansing 
  hide details  
Reply
Kalki
(25 items)
 
Alienware
(18 items)
 
ASUS A53Z
(13 items)
 
CPUMotherboardGraphicsRAM
AMD FX-8320 @ 4.73GHz Gigabyte 990FXA-UD3 Radeon HD 7950 @ 1200/1800 8GB Samsung 30nm DDR3 @ 2000MHz 11-11-11-28-1T 
Hard DriveHard DriveHard DriveOptical Drive
128GB Crucial M4 1TB Seagate Barracuda 7200.12 2TB Seagate Barracuda ST 7200 RPM who cares 
CoolingCoolingCoolingCooling
XSPC Raystorm XSPC Razor HD 7970 XSPC EX240 Swiftech MCP50X 
CoolingCoolingCoolingCooling
Black Ice GT Stealth 240 2x XSPC Xinruilian 1650rpm 2x Yate Loon Slim 1800rpm Alphacool Light Tower 
OSOSMonitorKeyboard
Windows 7 Gentoo GNU/Linux Dell UltraSharp U2412M CM Storm Trigger MX Brown 
PowerCaseMouse
Corsair AX750 Corsair Carbide 300R Logitech G400 
CPUMotherboardGraphicsRAM
AMD OPTERON BULLDOZER 16-CORE 2GHZ (32GHZ TOTAL) ALIENWARE 3+1 PHASE ITX GAMING BOARD 4GB NVIDIA GEFORCE GT 430 32GB GAMING DDR3 800MHZ CL13 
Hard DriveOptical DriveCoolingOS
2TB 5400RPM GAMING HDD GAMING BLU RAY BURNER ONE GAMING CASE FAN UBUNTU W/ UNITY (I AM 1337 H4X0R) 
MonitorKeyboardPowerCase
HD-READY 24" 1366X768 PENTILE TN PANEL GAMING M... ALIENWARE TACTX UBER 1337 BACKLIT RUBBER MEMBRA... OFF-BRAND 200W GAMING PSU; 65% EFFICIENCY  ALIENWARE GAMING CASE WITH THE COOL GLOWING ALIEN 
MouseMouse PadAudioAudio
ALIENWARE TACTX GAMING MOUSE ALIENWARE MOUSEPAD IT'S DESIGNED FOR GAMING AND... BEATS AUDIO 1337 ALIENWARE TACTX 8-CHANNEL GAMING HEADSET/M... 
OtherOther
16 CORES!!!! 4GB VRAM!!!! FASTER THAN 3960X + 7... ALIENWARE GAMING CARPET 
CPUMotherboardGraphicsRAM
AMD A6-3420M OC 2.2GHz / 3GHz Turbo 1.10625v ASUS A53Z AMD Radeon HD 6520G 6GB DDR3 1333MHz 
Hard DriveOptical DriveCoolingOS
320GB WD Scorpio Black yes. really good Windows 7 Home Premium 64-bit 
OSMonitorKeyboardPower
Fedora GNU/Linux 1366x768 LED-backlit TN panel Decent + numpad ~5hr 6-cell li-ion 
Audio
Altec Lansing 
  hide details  
Reply
post #7 of 7
Quote:
Originally Posted by Phaedrus2129 View Post
Yeah, going for 975MHz I had to increase core voltage to 1.2, and it was way hotter. Not worth it. 940MHz is a good number though. 940/1375 it is.
Furmark will load it fairly high, but mining will take it to super overheat levels fast, LOL. I would check temps while gaming to see if it gets as high as Furmark. In general, I only use Furmark to test my waterblock temp cooling and break-in TIM on initial assembly.
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
     
CPUMotherboardGraphicsRAM
Intel I7 860  Asus P7P55D-E Pro MSI ATI 6990 8gb G.Skill 1600 DDR3 (4x2Gb) 
RAMHard DriveHard DriveOptical Drive
G. Skill 1600 DDR3 OCZ Agility 2 120Gb  Seagate SATA Barracuda 160GB TSH663B DVD burner 
CoolingCoolingCoolingCooling
EK Supreme HF XSPC RC360 XSPC DDC Reservoir EK-FC6990 - EN (Nickel) 
OSMonitorKeyboardPower
Windows 10 64bit Pro Gateway FHX2300 Microsoft Wireless Multimedia V2 PC Power & Cooling Silencer 750 Quad 
CaseMouseAudio
Cooler Master HAF 932 Microsoft Wireless Optical Creative 5.1 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › How are these clocks?