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Increasing max turbo multiplier improves IPC

post #1 of 10
Thread Starter 
It seems increasing the turbo multiplier also increases the single IPC without stressing the cpu with all cores. Currently I am at 17-22.5X with 216 bus speed. NB is set x10 and HTT at auto with Fx8310. Single core at cinebenchR11.5 1.21. Has anyone tried to go past 24x.
post #2 of 10
Have used a 31x multiplier at 200 clocks, but records only show multiple threads with a score of 5.20 R11.5 FX-4300 @ 6200mhz. According to the screen shot, scoring is between a stock i7 860 and i7 960 4c/8t.

When you overclock, generally the IPC does get better biggrin.gif
post #3 of 10
Thread Starter 
I was planning just about to bump my settings from 17-22.5x to 17-25x just to speed up my 3d cad application. 31x is extreme and scary for my set up
post #4 of 10
You may need to add voltage to turbo 25x.
post #5 of 10
Thread Starter 
I have under clocked my 4 sticks of Kingston Fury 8 GB DDR3 1866 MZ to 1600 MHZ. But at 216, it is running 864 MHz and a max of 888 MHz. I don't think the The Asrock 970 Extreme 3 R2.0 might not be able to handle it to 222 to get that 888 Mhz rating. Also I have to to set the CPU NB below 2400 or within the 2200 as the rating for FX8310 to prevent application errors. The bios says the max speed of the FX8310 is 6200 Mhz but dare not play it to the max.

So I am thinking of the turbo multiplier to raise it further 25x max turbo for the single core IPC. Appreciate the time you have on this.
post #6 of 10
It's not the board but the RAM that won't do the speed. The board is fine. Any how, you can try to over-volt the memory to compensate that overclock.
post #7 of 10
Thread Starter 
It stable with a mild overclock on the bus:
bus - 217 ( ddr3 1736 rating, 868 DRAM freq)
cpu voltage set at 1.1375v
cpu nb 1.1825v; nb freq. x11.0= 2387; ht set at auto
cpu multiplier x17=3689
cpu turbo multiplier x23=4991
Increasing the cpu multiplier raises the wattage past the 95.2W.
running dual monitor Philips 273V (27")primary, Philips 243V (24") on a Sapphire Nitro 370 4GB GDDR5, Antec True Power Classic 550W Gold psu
All connected to Eaton 5E 850i with output load at idle 170-177W from Eaton ups monitor. At bus 216 it drops to 163-170W


To go past bus 217, I have to set the nb freq. to x10 as going past 2387 OCCT will stop below 1 minute with error found.
post #8 of 10
Yes most NB clocks past 2.4 - 2.5ghz gets unstable. However you can keep HT at 2600mhz without over-volt.

Looks good though! Can't complain about a 4991mhz turbo! thumb.gif
post #9 of 10
Thread Starter 
I also get errors if I toil with the HT and and also faster temp rise.

Here may latest test with latest AMD video driver running Cinebench R15
FX8310 @3.69Ghz
CPU (Single core): 113 (123 on 11.5) with output load 238(189.85)-245(196.85)W of the UPS
CPU: 572 CB (615 on 11.5) with output load 315(266.85)-340(291.85)W of the UPS
OpenGL: 101.11 FPS 325(276.85)W of the UPS

Philips 273V 26.64W
Philips 243V 21.51W
(48.15W)

Idle 170(121.85) - 177(128.85)W power consumption won't break the bank

W10 file history backup running in the background so it adds to the watt load
Thanks for your guidance
Edited by jigzaw - 7/12/16 at 4:21am
post #10 of 10
Don't use split fsb ratio, imo. Not good for ahci drive stability. Also disable turbo if you can, it introduces some major latency issues with video playback. It is very easy to switch between settings with PSCheck.
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Quad Krait 300 at 1.5Ghz Qualcomm APQ8064-1AA SOC Adreno 320 at 400mhz 2GB DDR3L-1600 
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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 
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