Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 34

Thread: AMD Phenom II TDP and underclokcing / undervolting

  1. #21
    Join Date
    Nov 2008
    Location
    Germany
    Posts
    5,411

    Default

    Quote Originally Posted by crazycheese View Post
    No video acceleration afaik, or will have to use windows and amd windows driver. Also the thermal management is worser(I think K10 athlon/phenom I-II are on core2duo/quad level), but yes, if the video card would take the task and downclock it won't be a problem.
    last night i test flash h264 video test video on youtube on an radeon driver based on kubuntu 11.04 and the video runs fine on 1080p

    sure its an passiv cooled hd5450+passiv cooled phenomIIdualcore@2,6ghz (downclocked)

    means in REAL for some systems you just don't need video acceleration.

    maybe bobcat is to slow but Llano is much faster thats for sure.

  2. #22
    Join Date
    Apr 2010
    Posts
    1,946

    Default

    Quote Originally Posted by Qaridarium View Post
    means in REAL for some systems you just don't need video acceleration.

    maybe bobcat is to slow but Llano is much faster thats for sure.
    Yes, if cpu is ok (and one 2ghz k7 core is already enough for h264) thats no problem.
    But then you get a disadvantage of power mgmnt on current selling K10. Intel would already be better with core i+ in long run.If bulldozer comes this may change(I hope it will).

    As for gpu, I dont want to touch catalyst, not even for testing. It was plain horror. Maybe I will boot my system on LiveCD to test it soon on vaapi, when I sell amd and get nvidia card(don get me wrong I strong dislike nvidia, but there is no choice from amd). I know that nvidia vdpau works even on ion, and nvidia has been ignorant to some hw support cases, but amd current policy is not acceptable for me now. I dont want windows and I want working hardware(long window, 3d features, stable, hw video decode logic) or the real strong line behind rising opensource that is internally better. Nothing here from AMD, but I don't want to hijack the thread with my situation.

  3. #23
    Join Date
    Nov 2008
    Location
    Germany
    Posts
    5,411

    Default

    Quote Originally Posted by crazycheese View Post
    Yes, if cpu is ok (and one 2ghz k7 core is already enough for h264) thats no problem.
    But then you get a disadvantage of power mgmnt on current selling K10. Intel would already be better with core i+ in long run.If bulldozer comes this may change(I hope it will).

    As for gpu, I dont want to touch catalyst, not even for testing. It was plain horror. Maybe I will boot my system on LiveCD to test it soon on vaapi, when I sell amd and get nvidia card(don get me wrong I strong dislike nvidia, but there is no choice from amd). I know that nvidia vdpau works even on ion, and nvidia has been ignorant to some hw support cases, but amd current policy is not acceptable for me now. I dont want windows and I want working hardware(long window, 3d features, stable, hw video decode logic) or the real strong line behind rising opensource that is internally better. Nothing here from AMD, but I don't want to hijack the thread with my situation.
    the fusions are a choice if you wana save powerconsuming...
    and no the fusion is not the same like old K10 cpus in power saving options.
    the fusion do have 1-3 watt in idle and 18 watt REAL-max-TDP (not the intel funny TDP).

    and amd (bridgman) work right now about openup the UVD unit for the radeon driver.

    and the Google chrom browser accelerate WebM in Shaders and you also can accelerat h264 in shaders.

  4. #24
    Join Date
    Nov 2008
    Location
    Germany
    Posts
    5,411

    Default

    Quote Originally Posted by crazycheese View Post
    Yes, if cpu is ok (and one 2ghz k7 core is already enough for h264) thats no problem.
    But then you get a disadvantage of power mgmnt on current selling K10. Intel would already be better with core i+ in long run.If bulldozer comes this may change(I hope it will).
    fusion allready chance this exampel:

    http://geizhals.at/a610927.html

    bobcat fusion really beats all other solutions in power saving.

  5. #25
    Join Date
    Apr 2010
    Posts
    1,946

    Default

    Quote Originally Posted by Qaridarium View Post
    and amd (bridgman) work right now about openup the UVD unit for the radeon driver.

    and the Google chrom browser accelerate WebM in Shaders and you also can accelerat h264 in shaders.
    Thanks for the link! That pretty much kicks Intel ATOM 330 out, but not ION. I saw that MB still use IGP 6310 - UVD is a must if target is ION. And thats full UVD3.

    Thats nice that Bridgeman does, but I didn't like his reactions and that of Xorg dev team (again, thats personal reception) - it made me think its gonna be complete in 20 years and even then at the same time result won't be usable with the modern hardware. Either polished outdated technology as opensource, or proprietary and modern. Nvidia already has modern and proprietary (but you know). This leaves AMD be choice for very old systems.

    I use quadcore with 4 gigs of ddr3-1600 with linux on home desktop, now.

  6. #26
    Join Date
    Apr 2010
    Posts
    1,946

    Default

    http://geizhals.at/a613148.html
    uATX package

    review: http://www.overclock3d.net/reviews/c...ro_micro_atx/1

    "In a nutshell, the Asus E35M1-M PRO is everything a typical Atom Dual Core + ION offering is, but noticeably better. Those who wish to use the board as a HTPC or NAS box will be pleased by the flexible storage options and the passive/low noise operation. Also we have shown that 1080p is doable with no trouble at all."

    That was when using windows as os.
    On linux this comes to nvidia vs amd... you understand.

  7. #27
    Join Date
    Mar 2011
    Posts
    4

    Default

    Hi,

    if you want a silent, cool and power-saving system and if you are willing to invest some money into a new motherboard, too, you maybe should just take one of the new Core i5 in combination with a 1155 motherboard.

    For example, the Core i5-2500 easily outperforms the fastest AMD hexacore available at the moment (at least regarding to cpubenchmark.net), it consumes significant less power (especially under load) and stays cooler. For almost the same price!

    Nevertheless, i happen to use an undervolted (and unlocked) Phenom II system

    Here is some data you might be interested in:

    System specs:

    Phenom II X4 B50 (Phenom II X2 B550, all cores unlocked) @ 3.1 Ghz
    Scythe Samurai ZZ
    MSI 785GM-E51
    Geforce 450GTS
    3x HDD
    2x optical drive

    I use "k10ctl" to undervolt the cpu for all available p-states (800 Mhz, 1900 Mhz, 2400 Mhz, 3100 Mhz).

    It runs stable with the following settings:
    800 Mhz @ 0.8V
    1900 Mhz @ 1.0 V
    2400 Mhz @ 1.075V
    3100 Mhz @ 1.275V

    Unfortunately, after unlocking, the thermal sensors for coretemp don't work anymore, so i only have values for temp1:

    idle: ~ 36-39 C / fan @ ~ 500 rpm
    load: ~ 55-58 C / fan @ ~ 1400 rpm


    Power consumption (for the whole system, including hard drives, optical drives, graphics card) according to my measuring device (a rather cheap one, so might be inaccurate):

    idle: 70W
    load (4x mprime -t): 170W

    If you have any more questions, feel free to ask!

    -hanky-

  8. #28
    Join Date
    Apr 2010
    Posts
    1,946

    Default

    Or even better, buy quad amd magny cours and 24 Gigs of registered ECC ram - you will able to play over 3000 movies at once!

  9. #29
    Join Date
    Mar 2011
    Posts
    4

    Default

    Quote Originally Posted by crazycheese View Post
    Or even better, buy quad amd magny cours and 24 Gigs of registered ECC ram - you will able to play over 3000 movies at once!
    Regarding to the first post, the thread starter wants to upgrade his current system and therefore mentioned two possible options:

    AMD Phenom II X4 910e (~ 125 )
    AMD Phenom II X6 1055T (~ 145 )

    No matter which of both he would take - they would both be significantly faster than your idea, which iirc would be an atom/ion system (which is incredibly slow in comparison, just to make it clear again).

    A Core i5 would be oversized, but as i said it would also consume less power and stay cooler - not to mention that it is faster. So there would be absolutely no disadvantage, except that he would have to buy a new motherboard (ok, which isn't available at the moment ).

    Nevertheless, i don't see why he should literally downgrade to an ion system when his first intention was to upgrade...

    Don't get me wrong, there are several occasions in which an atom/ion combination fits - but not this one, except he accepts to buy new hardware that runs even slower than his current setup.

    -hanky-

  10. #30
    Join Date
    Apr 2010
    Posts
    1,946

    Default

    Core i5 1156 is a goner. Core ix-xx00 (sandy bridge) is very buggy in current revisions, it works good only on w7 and only on some applications. The guy has already good system and you ask him to sell it (cpu+mb) and buy equivalent system that is more expensive (,buggy) and still eats a LOT of electricity compared to ION/Zambezi(provided AMD ever fixes UVD). Of course core-i/i-xx00 are more energy efficient, but he already had them and if you undervolt the usage will drop to 85-90 watt idle vs 70-80 watt idle of intel - it will not pay itself back. Better get dedicated HTPC with small usage or get a basic discrete gfx card that can accelerate video (gf 430 etc)

Tags for this Thread

Posting Permissions

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