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Phenom II X6 1055T or Phenom II X4 965 BE ?

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  • Phenom II X6 1055T or Phenom II X4 965 BE ?

    Hi guys,

    I'm still deciding which CPU will be part of my new system.
    Better a 6 cores with 2,8 GHz but Turbo 3.3 GHz (and 6 MB cache) or a 4 cores 3.4 GHz speed each and same amount of cache?
    The latter consumes 125 W and X6 cores 95?

    I feel the X4 is more balanced, but still it'd consume a bit more of power being a little slower.
    On the contrary the X6 has 6 cores (6 cores!) but 2.8 GHz, still with turbo technology (how many 1,2 or more?) at least 1 core would go to 3.3 GHz...

    Please suggest!

    Cheers,

  • #2
    I'd take the hexacore. Even in single-threaded stuff it's just about equal to the x4, thanks to the turbo.

    It's also a newer part, so might have some new instructions. Not 100% sure about that though.

    Comment


    • #3
      Originally posted by curaga View Post
      I'd take the hexacore. Even in single-threaded stuff it's just about equal to the x4, thanks to the turbo.

      It's also a newer part, so might have some new instructions. Not 100% sure about that though.
      Thanks, this is what I was thinking about.
      Btw, any link to the official spec about this new AMD technology (just to check)?

      Even because I don't think I'll use the X4 at 100% 4 cores a lot, plus, even if I'd use this way I guess that:
      on same MT process
      6x 2.8 > 4x 3.4
      But if we're talking about multi process I fear the cache would do it in favour of the X4...

      Any other comment/suggestion?

      Cheers,

      Comment


      • #4
        More raw speed is always good for games, when you use gentoo or compile much then more cores are interesting. That's why Intel will sell a i5-680 soon - 3.60 ghz (+turbo 3.83 ghz). Many games do not need more than 2 cores but scale well with higher frequency.

        Comment


        • #5
          Originally posted by Kano View Post
          More raw speed is always good for games, when you use gentoo or compile much then more cores are interesting. That's why Intel will sell a i5-680 soon - 3.60 ghz (+turbo 3.83 ghz). Many games do not need more than 2 cores but scale well with higher frequency.
          My point is, how many cores out of 6 are able to reach 3.3 GHz?

          Cheers,

          Comment


          • #6
            It will use turbo when 50% of the cores are idle. Basically only the 1090T is interesting but too expensive.

            Comment


            • #7
              Depends, for a hexa 1090T is still cheap.

              Comment


              • #8
                Originally posted by Kano View Post
                It will use turbo when 50% of the cores are idle. Basically only the 1090T is interesting but too expensive.
                I think your the first person that I have heard refer to the 1090T as to expensive. Performance per dollar, it pretty much wipes the board clean.

                Comment


                • #9
                  300 € for the cpu would be at least 50 € too much.

                  Comment


                  • #10
                    Originally posted by Kano View Post
                    It will use turbo when 50% of the cores are idle. Basically only the 1090T is interesting but too expensive.
                    Sorry don't get, why only 1090T would be interesting and not 1055T?

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                    • #11
                      Because the 1055T is too slow.

                      Comment


                      • #12
                        Originally posted by Kano View Post
                        Because the 1055T is too slow.
                        Just because the max speed of 6 cores is 400 MHz lower?
                        Is this the only reason?
                        Then would you recommend a X4?

                        Cheers,

                        Comment


                        • #13
                          Which CPU is better obviously depends on what you are going to use it for. One case (4 threads) will see the X4 965 faster, otherwise X6 1055T will be on par to or faster than the X4.

                          Comment


                          • #14
                            @Emanem

                            That's very simple, it's hard to find a benchmark where the 1055T is faster than a higher clocked quad.

                            Comment


                            • #15
                              Where did you get the information that the 1055T has a TDP of 95W? AFAIK it's got a TDP of 125W, and therefore the same as the 965BE. This test (sorry it's in german, but the numbers should speak for themselves) confirms this: The 965BE consumes slightly less power than the 1055T, both in idle and under load (when looking at the 1055T with turbo enabled). The real powersaver is the new chipset, the 890FX. According to the test, it saves about 30W compared to the old one when using the same cpu.
                              So I'd also recommend a X4 for now, it's bearly much slower in multithreaded apps, but noticeably faster in singlethreaded ones (or ones that don't make use of >4 cores). It's also much cheaper and consumes slightly less power.

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