Poor FX-8350 performance (Compared to other 8350s)

So I just built a new PC and I am having some odd performance with my FX-8350.

Here are my scores in synthetics:
Geekbench 3 - 32Bit Multi-Core 10244 Single-Core 2370 (Average at stock clocks are 11000+, Single averages at 2100)
Passmark Performance Test 8.0 - 9730 (This one isn't that far off, however most people do cross 10k at 4.4GHz and above)
Cinebench R15 - 648 (Stock 8350s usually are 700 or above)
Cinebench 11.5 - 6.15 (Once again, people have no trouble getting over 700)

I have tried taking off the overclock, and my scores adjust accordingly (8300 in PCMark, 550 in CB R15). Temps run at 60C max (Prime95 for 2 hours) at stock and 68C at 4.6GHz. My CPU clock is not dropping.

My CPU voltage is staying remotely stable, this is the Revision 4 of this board, not Revision 3 which had VRM issues.

Here is my full build specs:
AMD FX-8350 @ 4.6GHz - 1.45V
Coolermaster Hyper-212 Plus Evo with an additional Coolermaster Sickleflow in push pull configuration
GigaByte 990FXA-UD3 Revision 4.0
ATI Radeon 5770 @ Stock clocks (Waiting for my 290X to get here)
Team 8x2Gb 1600MHz
Samsung 840 Evo 128Gb
Caviar Blue 1Tb 7200RPM
Corsair CX 750W
Corsair 600T
16 answers Last reply
More about poor 8350 performance compared 8350s
  1. Okay I have done some memory tests and my scores are at DDR-2 800MHz levels, I have swapped out my Vulcan for some Corsair Vengeance and my speeds are still half of what they should be (6500 on PC mark).

    I believe this could be the cause, but now I have to figure out what is causing this.
  2. Make sure your ram settings are correct.
  3. logainofhades said:
    Make sure your ram settings are correct.


    +1 go through your BIOS and make sure your RAM timings, etc. are all correct. You may have to manually set the timings.
  4. Just checked, everything is set correctly in the BIOS.

    CPU-Z is reporting everything fine as well.

    Okay, apparantly PCMark just doesn't like AMD's memory controllers and gives all 8350s a shit score on read and writes.

    However my CPU scores are still low.
  5. 60c is near the limit of that CPU. Could be thermal throttling a bit.
  6. logainofhades said:
    60c is near the limit of that CPU. Could be thermal throttling a bit.


    Reverted to stock and left the side panel open, ran CB R15 and it never went above 41C and got a score of 533.
  7. bump
  8. I did a quick google search for you. That motherboard's 3.0 revision had problems with the 8300 series cpus where the vrm was basically throttling the voltages on overclock and stock. I couldn't find any info on the 4.0 revision however, it will give you a symptom to look for. so when doing your testing check to see if there are any voltage drops
  9. ethereal essence said:
    I did a quick google search for you. That motherboard's 3.0 revision had problems with the 8300 series cpus where the vrm was basically throttling the voltages on overclock and stock. I couldn't find any info on the 4.0 revision however, it will give you a symptom to look for. so when doing your testing check to see if there are any voltage drops


    My voltages and clocks are stable.
  10. I hate to bump this again, but I have literally found nothing on this issue.
  11. What OS? If windows 7 is it 64 bit? If it is have you downloaded the fixes for AMD CPUs?
  12. 8350rocks said:
    What OS? If windows 7 is it 64 bit? If it is have you downloaded the fixes for AMD CPUs?

    Yes it is 64Bit W7, what are these fixes you speak of?
  13. I installed two hotfixes that Teksyndicate recommended, still no improvement.
  14. Okay, I solved the problem.

    I noticed my system process was using 15% of my CPU on idle, so I went through Process Explorer and look at the threads under the system process (right click on the system process > properties > then click the thread tab) I then saw a dll that was using up the processor (which was VIA USB 3.0 Drivers) and uninstalled them.

    I am now getting 663 in CB 11.5 and 9100 on PCMark at stock.

    So to anybody that is having issues with this and notices "system" using up a lot of CPU time, Download this:
    http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
    and look through the threads.
  15. koreanoverlord said:
    Okay, I went through Process Explorer and look at the threads under the system process (right click on the system process > properties > then click the thread tab) I then saw a dll that was using up the processor (which was VIA USB 3.0 Drivers) and uninstalled them.



    That was totally going to be my next suggestion. >.>

    Seriously that is one hell of an obscure problem. Thanks for the tip and definitely going to remember this in the future.
  16. bouncedk said:
    Why install motherboard drivers? .. Only serve as bloat - Especially if coming from the motherboard manufacture.


    Why wouldn't you install the drivers? I could understand not installing utilities, but drivers are necessary and the ones from Microsoft tend to extremely suck. Some new motherboards, Microsoft doesn't even have a driver for on a fresh install.
Ask a new question

Read More

CPUs AMD Corsair 8350 Performance