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Thread: new mac pro on it's way

  1. #1

    new mac pro on it's way

    have to say it looks fantastic!

    i guess the price will be huge though





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  2. #2
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    "If you can't say something nice..."

    I'll be quiet now.

    BTW More here... http://www.apple.com/mac-pro/
    Last edited by Dexter2999; 06-10-2013 at 01:22 PM.

  3. #3
    some more infos here: http://arstechnica.com/apple/2013/06...drical-design/

    dual ATI fire pro GPU's as standard, totally expandable via thunderbolt 2, full opengl 4 support, PCI-E based flash drive as boot volume doesn't sound too bad!

    cheers

    markus
    Last edited by 3dworks; 06-10-2013 at 01:23 PM.
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  4. #4
    AeroAnimator 4dartist's Avatar
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    Can you really expand a graphics card via thunderbolt2? Is it as fast as an internal card? That's pretty much my main concern with it.

  5. #5
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    You can expand the graphics through the Thunderbolt2. And Thunderbolt2 is faster than your PCIe slots you are currently using. (I believe.)

  6. #6
    Super Member CaptainMarlowe's Avatar
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    I don't even dare to think about the price, but it is sure a bold rethinking of the mac pro.

  7. #7
    3dworks visual computing
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    OSX 10.12.x, macpro 5.1, nvidia gtx 980 ti, LW2015.x / 2018.x, octane 3.x

  8. #8
    Founding member raymondtrace's Avatar
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    The top looks like it can hold and warm a cup of coffee... not the greatest design idea.

  9. #9
    Quote Originally Posted by Dexter2999 View Post
    You can expand the graphics through the Thunderbolt2. And Thunderbolt2 is faster than your PCIe slots you are currently using. (I believe.)
    not even close Dexter...
    PCIv3 16x is 126,000 mbits per second...vs 20,000 for thunderbolt 2....or about 1/5th the badwidth...

    its equal to about 3 pci v3 lanes or 6 pci v2 lanes....

    can it still run a video card though? Probably....its basically 12 v1 pci lanes...

  10. #10
    Quote Originally Posted by m.d. View Post
    not even close Dexter...
    PCIv3 16x is 126,000 mbits per second...vs 20,000 for thunderbolt 2....or about 1/5th the badwidth...

    its equal to about 3 pci v3 lanes or 6 pci v2 lanes....

    can it still run a video card though? Probably....its basically 12 v1 pci lanes...
    but did you consider that there are 6 thunderbolt 2 ports?

    some expansion chassis are already existing, like this one
    http://www.sonnettech.com/product/ec...sschassis.html or this one
    http://www.magma.com/expressbox-3t

    probably someone is working on this, at least at magma you can find such a comment "Graphics Card Support - External graphics support is a feature many users desire and we’ll keep you informed. Be the first to know... Join Magma Expresso."
    Last edited by 3dworks; 06-10-2013 at 04:34 PM.
    3dworks visual computing
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    OSX 10.12.x, macpro 5.1, nvidia gtx 980 ti, LW2015.x / 2018.x, octane 3.x

  11. #11
    there are six....ports...but an external box will still only be 1 channel.....unless you know of a tech that will aggregate 2 TB channels

    i have been following those boxes for years....i'm not saying it won't happen...but they have a lot of problems already with lower bandwidth cards like a red rocket....which they have been running at 4 lane pciv2 speeds....over thunderbolt 1....and a video card running full steam needs alot more bandwidth then a red rocket

    an external gpu expansion will happen...but that doesn't change the fact the the bandwidth is 1/5 that of a full pci express x16 slot

  12. #12
    Witty remark goes here. TheDynamo's Avatar
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    Leave it to Apple to create an accessory based Pro system. How much do you want to bet that the connectors will need a slightly altered thunderbolt port when it's released forcing you to buy adapters. I think I'll stick with my Macbook Pro when my i7 980x PC workstation goes kaput.

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  13. #13
    for things like octane....and external GPU would run fine....as the limiting factor is how long it takes to send the scene to the GPU buffers....which would be negligible...
    and probably for most things it would work ok....

    the most stress would be put on by gaming...or high ploy opengl....but you still have quite a bit of bandwidth with TB2

    ive seen some tests where a x16 gpu was put in a v1 slot and a v2 slot....and performance dropped about 30% (in gaming)

    it all depends on the application....the built in firepro's are pretty freaking powerful by themselves though

  14. #14
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    Quote Originally Posted by m.d. View Post
    not even close Dexter...
    PCIv3 16x is 126,000 mbits per second...vs 20,000 for thunderbolt 2....or about 1/5th the badwidth...

    its equal to about 3 pci v3 lanes or 6 pci v2 lanes....

    can it still run a video card though? Probably....its basically 12 v1 pci lanes...
    That math doesn't sound right. The article I read on Tom's Hardware said PCIe3 x16 is 16,000Mbs. not 126,000.
    http://www.hardwaresecrets.com/print...CI-Express/190
    I'm okay with the part about 20,000Mbs for Thunderbolt2. And if you were talking PCIe v4 then that doubles the rate to 32,000 which would be faster than Th2.

    The Apple page says you can connect up to three 4K displays so I imagine that one 4K display is going to take two Th2 slots?
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  15. #15
    http://www.pcisig.com/news_room/faqs/pcie3.0_faq/#EQ1

    1 giga bytes per second per lane = 16 giga bytes per second...16 * 8 = 128

    bits not bytes

    I was being more precise as the exact spec is 126gb...which is bigger then 20gb...5 times the size

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