How many cores?

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  • Dave2002
    Full Member
    • Dec 2010
    • 18045

    How many cores?

    In another thread, about synthesizers, mention was made of computer power, and number of cores, and whether to buy an i5,i7 or i9 processor.

    I don't know the answer - and I don't know how cheaply making up a powerful machine using Win PCs could become.

    If one simply goes to Apple, it's relatively easy to get some idea of what's possible, and also the costs. Configuring an iMac with most bells and whistles, and a turbo charged processor can be done for around £5k. I think that might end up with an 8 core model.

    Now try configuring an iMac Pro - which starts at around £5k. Eventually one can get an 18 core model with masses of memory - and the cost will be upwards of £12k.

    There are are couple of questions which emerge from this. Firstly, does having more cores really make a difference? This will depend on the software. My understanding is that if the software one is going to use doesn't have significant multithreading, that having more cores is effectively a waste of money - unless one is perhaps expecting to multi-task. However, worrying about doing multi-tasking on an expensive machine which has perhaps been bought for music production or video editing, does seem somewhat irrelevant.

    The other question is about how the Xeon processors compare with the i5/i7/i9 processors used in other systems. Are the Xeons significantly more powerful? They do run at a higher clock speed. Are there any non Apple machines using Xeons? What's the pricing like?
  • MrGongGong
    Full Member
    • Nov 2010
    • 18357

    #2
    Buy a refurbished one
    fraction of the price and just as good

    More cores makes a massive difference if you are doing intensive things

    Comment

    • Dave2002
      Full Member
      • Dec 2010
      • 18045

      #3
      Originally posted by MrGongGong View Post
      Buy a refurbished one
      fraction of the price and just as good

      More cores makes a massive difference if you are doing intensive things
      My original question was "how many?"

      Is it the case that most DAWs, and/or most synths use threading well, and really exploit the extra cores, or not?
      Also, is there any point in having better graphics processors? I note that some software exploits graphics processors as well - though perhaps not the kind of music software I'm currently interested in.

      I've never bothered to do a direct comparison of my machines with different numbers of cores - but perhaps I should. It all takes time, though.

      What do your machines have?

      I do know that older machines are at least 4 or 5 times slower - though whether it's just due to "slower" processors, or memory bottlenecks I can't say. More modern machines are better in man ways - faster memory, faster I/O as well as CPU throughput.

      Comment

      • MrGongGong
        Full Member
        • Nov 2010
        • 18357

        #4
        Originally posted by Dave2002 View Post
        My original question was "how many?"

        Is it the case that most DAWs, and/or most synths use threading well, and really exploit the extra cores, or not?
        Also, is there any point in having better graphics processors? I note that some software exploits graphics processors as well - though perhaps not the kind of music software I'm currently interested in.

        I've never bothered to do a direct comparison of my machines with different numbers of cores - but perhaps I should. It all takes time, though.

        What do your machines have?

        I do know that older machines are at least 4 or 5 times slower - though whether it's just due to "slower" processors, or memory bottlenecks I can't say. More modern machines are better in man ways - faster memory, faster I/O as well as CPU throughput.
        So, the machine i'm using at the moment
        is 15" Macbook pro 2.3 GHZ Core i7 (Mid 2012)
        16gb Ram
        1TB SSD

        Refurbished machine

        At the moment i'm running

        Safari (15 or so tabs)
        Opera (a couple)
        Open Office
        Audiomulch (via external soundcard doing live processing on flugelhorn in a rehearsal in in minute)
        Audition
        Ableton
        Zoom
        Photoshop
        Quicktime
        Sibelius V6
        Chrome (for an online meeting that seems to only work with this)
        OBS
        Jamkazzam

        and a couple of other things
        connected to the internet with an ethernet cable

        All running fine and stable

        I might turn a couple of things off in the rehearsal i'm about to join if the latency is big or audio is glitchy

        I don't always bother to turn things off after using them

        Comment

        • Dave2002
          Full Member
          • Dec 2010
          • 18045

          #5


          Hi - you didn't say how many cores, but I suspect it's got 2.

          This is what I get from About My Mac - System Information on my MBP Laptop.

          Hardware Overview:

          Model Name: MacBook Pro
          Model Identifier: MacBookPro10,2
          Processor Name: Intel Core i7
          Processor Speed: 3 GHz
          Number of Processors: 1
          Total Number of Cores: 2
          L2 Cache (per Core): 256 KB
          L3 Cache: 4 MB
          Memory: 8 GB

          It's pretty fast for most things

          Comment

          • Bryn
            Banned
            • Mar 2007
            • 24688

            #6
            Originally posted by Dave2002 View Post
            http://www.for3.org/forums/newreply....4503&noquote=1

            Hi - you didn't say how many cores, but I suspect it's got 2.

            This is what I get from About My Mac - System Information on my MBP Laptop.

            Hardware Overview:

            Model Name: MacBook Pro
            Model Identifier: MacBookPro10,2
            Processor Name: Intel Core i7
            Processor Speed: 3 GHz
            Number of Processors: 1
            Total Number of Cores: 2
            L2 Cache (per Core): 256 KB
            L3 Cache: 4 MB
            Memory: 8 GB

            It's pretty fast for most things
            Which model of i7 does the system report, or do Macs not divulge such information?

            Comment

            • Dave2002
              Full Member
              • Dec 2010
              • 18045

              #7
              Originally posted by Bryn View Post
              Which model of i7 does the system report, or do Macs not divulge such information?
              I don't know - how would that be discovered? Is the information in the chip?

              Comment

              • MrGongGong
                Full Member
                • Nov 2010
                • 18357

                #8
                That's a bit faster than mine (which is 2.3 GHZ)
                but mine has 4 cores and 16GB of RAM
                the L3 cache on mine is 6MB
                which is probably why I can do lots of multiple things etc

                When I bought this I wanted something very fast and powerful so had as much RAM as possible and the 1TB SSD

                Comment

                • Bryn
                  Banned
                  • Mar 2007
                  • 24688

                  #9
                  Originally posted by Dave2002 View Post
                  I don't know - how would that be discovered? Is the information in the chip?
                  I don't know about Macs but with Windows 10 you just go to Settings/System/About and it cites the processor type and specific model. You can then search for details about that model on the Internet to find how many cores and threads it has to offer.

                  Comment

                  • MrGongGong
                    Full Member
                    • Nov 2010
                    • 18357

                    #10
                    Originally posted by Bryn View Post
                    I don't know about Macs but with Windows 10 you just go to Settings/System/About and it cites the processor type and specific model. You can then search for details about that model on the Internet to find how many cores and threads it has to offer.
                    On the Mac go to

                    ABOUT THIS MAC > SYSTEM REPORT

                    Comment

                    • Dave2002
                      Full Member
                      • Dec 2010
                      • 18045

                      #11
                      Originally posted by Bryn View Post
                      I don't know about Macs but with Windows 10 you just go to Settings/System/About and it cites the processor type and specific model. You can then search for details about that model on the Internet to find how many cores and threads it has to offer.
                      The Mac system does seem to "just" give the information about the model and umber of cores, but I don't think it does more than that. Presumably there is something in the chip which the OS uses to determine the model and present the data it shows. As I recall my other machine is also an i7, but shows as 4 cores, so Apple were using different chips in the same year for different models.

                      Comment

                      • Cockney Sparrow
                        Full Member
                        • Jan 2014
                        • 2292

                        #12
                        I never went for the Mac computersphere. As my computer didn't just "correct itself overnight" as my Mac owning friends computers did, I had to deal with any issues arising in Windows (Win 95 on) but I am far from a tech savvy person and I have had to feel my way as issues arose. In the last decade, really there hasn't been too many problems but then I don't run demanding programs.
                        I take "computeractive" which translates tech terms into language I can understand - for what I need to be aware of. I don't edit video or music (much) nor game, so I only peripherally recall the magazine placing the Ryzen processors from AMD slightly ahead (£ for £) of Intel's offering - as I say this IIRC - because they offer more threads and processing for heavy software loads.

                        Comment

                        • Dave2002
                          Full Member
                          • Dec 2010
                          • 18045

                          #13
                          Some software may benefit a lot from more cores and multi-threading.

                          I found this today relating to Logic Pro X - https://youtu.be/YVbuE-seDIg

                          I’m not sure if other DAWs - such as Reaper - have similar tweaks.

                          Comment

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