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Re: Any recommendations for new hardware (quadcore/GPUs)?

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  • Subject: [mg117058] Re: Any recommendations for new hardware (quadcore/GPUs)?
  • From: telefunkenvf14 <rgorka at>
  • Date: Wed, 9 Mar 2011 06:55:42 -0500 (EST)
  • References: <iknsc6$k98$> <> <il52j2$o0k$>

On Mar 8, 5:06 am, "Emilio Martin-Serrano Sobrino"
<emartinserr... at> wrote:
> Hi,
> Good advice!
> I have just moving to new hardware, currently testing  a desktop Acer i5
> dual core, 3.2 GHz 64bits plus  4Gb RAM (Windows 7) with NVIDIA GForce 315 -
> 512Mb; I am a bit disappointed with the new desktop, since I  have not found
> much difference in performance in respect to my,  veteran but yet at work,
> HP 3.60 GHz, 32 bits plus  1Gb RAM (XP/SP3).  In particular the response to
> heavy use of dynamic devices (sliders, manipulators and others, which I
> sometimes use to trigger fairly entangled computations). I make heavy use of
> Dynamic and I thought that this  new machine was going to solve some
> significant performance problems tied to the feature IMHO.
> I  gather from what you say that RAM is, with Mathematica,  far more
> important than CPU (is this that with Dynamic too), and  so I might go
> beyond the 4 Gb RAM;  and that the  GForce 315 - 512Mb  card the Acer I5
> brings (yet  with CUDA & OpenCL support) would be not enough either. Since I
> am to return the brand new Acer to the dealer, (Acer, or maybe the dealer,
> advertised the machine had 6Gb RAM instead of the 4Gb it actually has), I
> would tray another  machine with larger configuration.

(1) 4GB of RAM is plenty. If you're filling up a bunch of ram (due to
data Import, for example), then you probably should be using functions
like OpenRead[] and/or utilize Mathematica's ability to connect to databases.
(2). A solid state hard-drive is worth the investment, especially for
laptops. (your laptop is probably too old to accept one...).
(3) *****No amount of hardware upgrading can overcome inefficient

> Something additional to take in account, in my case,  is that  the V8HE
> that  I am now using only supports 34Bits. So, in which degree could this be
> more or less balanced (in respect to 64bits support) by installing more RAM?
> Any additional comments will be welcome.
> Thank you.
> E. Martin-Serrano
>  An additional consideration is that the V8 HE  I am using now  does not
> support 64 bits.  
> -----Mensaje original-----
> De: telefunkenvf14 [mailto:rgo... at]
> Enviado el: lunes, 07 de marzo de 2011 11:47
> Para: mathgr... at
> Asunto:  Re: Any recommendations for new hardware (quadcore/GPUs)?
> On Mar 3, 5:00 am, Yves Klett <yves.kl... at> wrote:
> > Hi,
> > there are not too many benchmarks for current (especially mobile)
> > hardware to be found, so perhaps someone can give some information on
> > their preferred hardware?
> > Two things interest me in particular:
> > a) will a quadcore (i7) offer significantly more performance than a
> > dual core? Of course this depends on the nature of the task...
> > b) Is there any difference between cheaper gaming cards (e.g. NVidia
> > GTX) versus expensive professional cards (e.g. NVidia Quadro),
> > especially concerning CUDA/OpenCL?
> > Any impressions are welcome.
> > Yves
> Beware of laptops with switchable graphics. My Sony Z is awesome...
> EXCEPT for the fact that the switchable graphics mechanism makes it
> impossible to update the NVidia drivers (without either hacking together a
> custom driver package or hacking the bios to force the machine to use only
> the NVidia graphics). I'm beginning to wonder if Sony will ever update the
> graphics drivers for my machine. (very irritating to have Sony blathering on
> about supporting CUDA... and then failing to support CUDA).
> Laptops I'd consider if I had to do it all over again (by order of
> preference):
> Lenovo w510
> Dell Precision Mobile Workstations (4500 and 6500) Lenovo T410 (uses Optimus
> -- software switching between internal and NVidia graphics. Confirm driver
> upgradability before you leap!)
> As for the quad vs dual-core... i7's do come in dual-core as well as
> quad-core. You'll probably want to go with a dual-core i7 if you're going
> with a laptop, so worry less about CPU and more about screen quality, video
> card, memory and hard-drive. IMO, solid state drives are a must---but you
> should probably upgrade the drive yourself as Lenovo and Dell were waaaay
> overcharging for these components. The Intel x25-M is a good choice
> (although appears to be currently phasing out due to Intel releasing it's
> new 510 series).
> -RG

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