MMM
Results 1 to 25 of 96

Thread: Bulldozer Overclocking Guide (Performance Scaling Charts, max OCs)LN2 Results coming!

Threaded View

  1. #19
    Registered User
    Join Date
    Oct 2010
    Location
    South Korea
    Posts
    82
    Thanks for nice information. I have a unsolved question though (regarding this image)

    Click image for larger version. 

Name:	multihttscale.jpg 
Views:	1338 
Size:	99.1 KB 
ID:	121329

    Right after see this table, I guess there's some bug in a chip regarding some operation clock speed which sticks together with HTT, L2 speed for instance.
    So I've tried the same test with a hope of making another excuse for Bulldozer's low IPC at default HTT.

    My comparison settings are:

    1. 3.6GHz (200x18) / NB/HT 2.4GHz (200x12) / DRAM 800MHz (200x4)
    2. 3.6GHz (240x15) / NB/HT 2.4GHz (240x10) / DRAM 800MHz (240x3.33)
    3. 3.6GHz (266x13.5) / NB/HT 2.4GHz (266x9) / DRAM 888MHz (266x3.33)
    4. 3.6GHz (266x13.5) / NB/HT 2.4GHz (266x9) / DRAM 712MHz (266x2.66)

    Note that for 3 & 4, dram speeds don't stick exactly with 800MHz, so I tested twice for FSB266 under two different dram speeds both distant samely from around 800MHz.

    Anyway, my results are totally indifferent - means that higher FSB doesn't make sense at all
    (I'm so disappointed that I cannot even make a graph......)

    I tested Cache & Memory benchmark, CPU Queen, CPU AES, FPU Julia, FPU Mandel in AIDA64 and Cinebench R10 / R11.5.

    Do you think you have any other variable which I (probably) missed? - I've only controlled CPU multiplier, NB/HT multipler and DRAM multiplier along with HTT clock.
    Last edited by DGLee; 10-16-2011 at 09:53 PM.
    My Blog: http://udteam.tistory.com

    CPU: AMD FX-8150P
    Cooler: Antec KÜHLER H2O 920
    M/B: ASUS CROSSHAIR V FORMULA
    RAM: Samsung DDR3 PC3-10600 4GB x 2
    VGA: HIS & Sapphire Radeon HD 6990 4GB x 2
    Storage: Intel SSD 510 Series 120GB + Seagate Barracuda Green 2TB
    PSU: Antec True Power Quattro 1200
    Case: Lian Li PC-X500FX
    O/S: Microsoft Windows 7 Enterprise 64-bit

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •