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Ratio vs BCLK Overclocking Results May Surprise

post #1 of 11
Thread Starter 
I'm playing with a new rig with the specs below. I'm having a tough time getting past 4.5 Ghz single core and 4.4 Ghz all core. For fun I decided to give BCLK clocking a shot just to see where it would go since I've played around with that a bit with a 3820 that had a locked/limited core ratio. After running some benchmarks, I was really floored by the numbers I was getting at such low ratio frequencies. And the DC processor also ran much cooler due to the lower frequencies. I've tried to up the ratio more with the higher BCLK but haven't had much luck lately. I haven't tried this on an Ivy Bridge yet to see if this is unique to the newer (tock) architecture of Devil's Canyon (Haswell) lineup. It would be great to see everyone else posting benchmarks comparing the two different clocks.


Ratio OC
Core Frequency: 4.4
Bus Frequency: 100 Mhz
Temp Max: 80c
Gigaflops/IBT: 108
Passmark: 3000
Intel XTU: 853


BCLK OC
Core Frequency: 4.1
Bus Frequency: 125 Mhz
Temp Max: 71c
Gigaflops/IBT: 107
Passmark: 3480
Intel XTU: 953




Setup
  • i5-4670k
  • Asus Z87-A
  • DDR3 2400
  • iGPU
  • SSD
  • 240 mm AIO

I will update with pics later.
post #2 of 11
Quote:
Originally Posted by SynchronicBoost View Post

I'm playing with a new rig with the specs below. I'm having a tough time getting past 4.5 Ghz single core and 4.4 Ghz all core. For fun I decided to give BCLK clocking a shot just to see where it would go since I've played around with that a bit with a 3820 that had a locked/limited core ratio. After running some benchmarks, I was really floored by the numbers I was getting at such low ratio frequencies. And the DC processor also ran much cooler due to the lower frequencies. I've tried to up the ratio more with the higher BCLK but haven't had much luck lately. I haven't tried this on an Ivy Bridge yet to see if this is unique to the newer (tock) architecture of Devil's Canyon (Haswell) lineup. It would be great to see everyone else posting benchmarks comparing the two different clocks.


Ratio OC
Core Frequency: 4.4
Bus Frequency: 100 Mhz
Temp Max: 80c
Gigaflops/IBT: 108
Passmark: 3000
Intel XTU: 853


BCLK OC
Core Frequency: 4.1
Bus Frequency: 125 Mhz
Temp Max: 71c
Gigaflops/IBT: 107
Passmark: 3480
Intel XTU: 953




Setup
  • i5-4670k
  • Asus Z87-A
  • DDR3 2400
  • iGPU
  • SSD
  • 240 mm AIO

I will update with pics later.


Well I set mine at 125 cpu strap and got it stable at 4.7ghz cpu ratio and 4ghz uncore ratio and here my score results


post #3 of 11
Quote:
Originally Posted by SynchronicBoost View Post

I'm playing with a new rig with the specs below. I'm having a tough time getting past 4.5 Ghz single core and 4.4 Ghz all core. For fun I decided to give BCLK clocking a shot just to see where it would go since I've played around with that a bit with a 3820 that had a locked/limited core ratio. After running some benchmarks, I was really floored by the numbers I was getting at such low ratio frequencies. And the DC processor also ran much cooler due to the lower frequencies. I've tried to up the ratio more with the higher BCLK but haven't had much luck lately. I haven't tried this on an Ivy Bridge yet to see if this is unique to the newer (tock) architecture of Devil's Canyon (Haswell) lineup. It would be great to see everyone else posting benchmarks comparing the two different clocks.


Ratio OC
Core Frequency: 4.4
Bus Frequency: 100 Mhz
Temp Max: 80c
Gigaflops/IBT: 108
Passmark: 3000
Intel XTU: 853


BCLK OC
Core Frequency: 4.1
Bus Frequency: 125 Mhz
Temp Max: 71c
Gigaflops/IBT: 107
Passmark: 3480
Intel XTU: 953




Setup
  • i5-4670k
  • Asus Z87-A
  • DDR3 2400
  • iGPU
  • SSD
  • 240 mm AIO

I will update with pics later.

On which OS was that? Apparrently changing the BCLK on Win8.x and 10 messes with the time, and therefore affects benchmark results.
My rig
(28 items)
 
 
Folding Rig #1
(8 items)
 
CPUMotherboardGraphicsGraphics
Core I5 7500 Gigabyte Z270-GAMING K3 Gigabyte GTX 750Ti Black (back from retirement) Gigabyt GT640 OC 
RAMHard DriveHard DriveHard Drive
8GB Crucial DDR4 250 GB Seagate 500 GB Seagate 250 GB Seagate 
Optical DriveCoolingCoolingOS
Liteon iHAS324 Deepcool Gammaxx S40 No-name fan controller Windows 8.1 Pro 64-Bit 
OSMonitorMonitorMonitor
Windows 10 Tech Preview (x64) (expired) Samsung Syncmaster S20B300 Samsung Syncmaster S20B300 Samsung Syncmaster S20B300 
KeyboardPowerCaseMouse
Asus Strix Tactic Pro Cooler Master V 650S CM Storm Stryker Genius Maurus 
Mouse PadAudioAudioAudio
Razer Goliathus Alpha Yamaha RX-V567 Receiver Sennheiser HD 380 Pro Headphones TEK SP-8008S surround bookshelf speakers 
AudioAudioAudioOther
TEK SP-8008F tower speakers (Bi-amped) TEK SP-8008C center speaker Logik HTIB sub (blown amp in the TEK) 360W Mecer UPS 
CPUMotherboardGraphicsRAM
Core 2 Duo P8600 LENOVO 2241B57 Mobile Intel GMA 4500MHD 2 GB 
Hard DriveOSOSMonitor
128 GB Corsair Force GS Windows 8.1 Pro (x86) Windows 10 Tech Preview (x64) (expired) 15.4" lcd 1680*1050 
AudioOther
Conexant Cx20561 Embedded 3G 
CPUMotherboardRAMHard Drive
Core2 Quad Q9300 Gigabyte G41M-Combo 2 GB DDR2 80 GB IDE 
CoolingOSKeyboardCase
Gigabyte GPower Lite Linux Mint 17.3 Modded OEMMAX MCK-101 CM Storm Enforcer (white) 
  hide details  
Reply
My rig
(28 items)
 
 
Folding Rig #1
(8 items)
 
CPUMotherboardGraphicsGraphics
Core I5 7500 Gigabyte Z270-GAMING K3 Gigabyte GTX 750Ti Black (back from retirement) Gigabyt GT640 OC 
RAMHard DriveHard DriveHard Drive
8GB Crucial DDR4 250 GB Seagate 500 GB Seagate 250 GB Seagate 
Optical DriveCoolingCoolingOS
Liteon iHAS324 Deepcool Gammaxx S40 No-name fan controller Windows 8.1 Pro 64-Bit 
OSMonitorMonitorMonitor
Windows 10 Tech Preview (x64) (expired) Samsung Syncmaster S20B300 Samsung Syncmaster S20B300 Samsung Syncmaster S20B300 
KeyboardPowerCaseMouse
Asus Strix Tactic Pro Cooler Master V 650S CM Storm Stryker Genius Maurus 
Mouse PadAudioAudioAudio
Razer Goliathus Alpha Yamaha RX-V567 Receiver Sennheiser HD 380 Pro Headphones TEK SP-8008S surround bookshelf speakers 
AudioAudioAudioOther
TEK SP-8008F tower speakers (Bi-amped) TEK SP-8008C center speaker Logik HTIB sub (blown amp in the TEK) 360W Mecer UPS 
CPUMotherboardGraphicsRAM
Core 2 Duo P8600 LENOVO 2241B57 Mobile Intel GMA 4500MHD 2 GB 
Hard DriveOSOSMonitor
128 GB Corsair Force GS Windows 8.1 Pro (x86) Windows 10 Tech Preview (x64) (expired) 15.4" lcd 1680*1050 
AudioOther
Conexant Cx20561 Embedded 3G 
CPUMotherboardRAMHard Drive
Core2 Quad Q9300 Gigabyte G41M-Combo 2 GB DDR2 80 GB IDE 
CoolingOSKeyboardCase
Gigabyte GPower Lite Linux Mint 17.3 Modded OEMMAX MCK-101 CM Storm Enforcer (white) 
  hide details  
Reply
post #4 of 11
Quote:
Originally Posted by JKuhn View Post

On which OS was that? Apparrently changing the BCLK on Win8.x and 10 messes with the time, and therefore affects benchmark results.

I'm running window 8.1 and changed the BCLK to 125 does window 8.1 not get good results when benchmarking??
post #5 of 11
Thread Starter 
Quote:
Originally Posted by JKuhn View Post

On which OS was that? Apparrently changing the BCLK on Win8.x and 10 messes with the time, and therefore affects benchmark results.

Are you sure that's the case when you're using a strap? When using straps don't affect the PCI or other bus items.

I'm on Win 7 SP1
post #6 of 11
Thread Starter 
Quote:
Originally Posted by NightHawk06 View Post

I'm running window 8.1 and changed the BCLK to 125 does window 8.1 not get good results when benchmarking??

Those are great numbers. What video card is that? How much RAM and speed?
post #7 of 11
Quote:
Originally Posted by SynchronicBoost View Post

Those are great numbers. What video card is that? How much RAM and speed?

ya it was Great numbers till I found out system was stable with alot of stress test and benchmark programs... when I left my pc for 5 mins
came back there was no display on my monitor and it came back with a picture all Fuzzy the screen was so F***ked up I had to force restart
do you know what this means was it the cpu strap?? I'm running a r9 280x single card with 16gb Ram Memory
post #8 of 11
Thread Starter 
Quote:
Originally Posted by NightHawk06 View Post

ya it was Great numbers till I found out system was stable with alot of stress test and benchmark programs... when I left my pc for 5 mins
came back there was no display on my monitor and it came back with a picture all Fuzzy the screen was so F***ked up I had to force restart
do you know what this means was it the cpu strap?? I'm running a r9 280x single card with 16gb Ram Memory

You probably need to bring down the core clock. Or if your gpu is OC'd too, then yeah that's probably the interaction w/ bclk
post #9 of 11
Quote:
Originally Posted by SynchronicBoost View Post

You probably need to bring down the core clock. Or if your gpu is OC'd too, then yeah that's probably the interaction w/ bclk

oh ya so I need to bring down my cpu Ratio?? mad.gif ya I dont overclock my graphic card since voltage is locked on this piece of crap card
post #10 of 11
Quote:
Originally Posted by SynchronicBoost View Post

Are you sure that's the case when you're using a strap? When using straps don't affect the PCI or other bus items.

I'm on Win 7 SP1

when using Cpu Strap or bus speed does it effect the CPU Life??
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