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Yes, 64 bit system will allow you to use 12GB of RAM while 32 bit OS will not.
The "bitness" is making the difference, not XP vs Vista.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "ozzyapeman" <zoopfree@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, March 17, 2009 5:09 PM
Subject: [amibroker] Re: OT: Computer recommendation for AB optimizing
> Thanks for the clarification.
>
> My understanding then, based on what I can gather from the net, is that Windows Vista 64-bit will give me the sole advantage of
> allowing me to run many more instances of AmiBroker, especially with the i7 processor and 12 GB of RAM, vs on WinXP.
>
> In that way, I can run more large optimizations simultaneously, without running out of memory, thus saving a lot of time overall.
>
> I had come across one article that tested as much, with other 32-bit apps running on XP32 vs Vista64, and the difference in
> multitasking ability was huge.
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>>
>> Those Windows Vista tests were made using Microsoft SQL server.
>>
>> AmiBroker does NOT use Microsoft SQL server or any other 3rd party DB.
>> It uses own original low-level database that is highly specialized
>> for quote processing is pretty independent from operating system.
>> It works equally well on every Windows version
>> (starting from Win95 and ending at Windows 7).
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "ozzyapeman" <zoopfree@xxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, March 17, 2009 7:17 AM
>> Subject: [amibroker] Re: OT: Computer recommendation for AB optimizing
>>
>>
>> > Whoa. Just read that article. Seems that WinXP 64 makes better sense by far to drive my new Intel i7 PC. The speed difference
>> > is
>> > quite significant. I might have just wasted money shelling out on a Vista 64-bit installation disk.
>> >
>> > Is Amibroker 32-bit pretty stable on WinXP 64? I only have experience running it on WinXP 32.
>> >
>> > If I only plan on running AmiBroker 5.24, TWS 892, and other basic 32-bit trading tools on the PC (and maybe Firefox and
>> > Outlook),
>> > would WinXP 64 be the way to go, or are there hidden disadvantages in going with that OS?
>> >
>> > I am aiming for the fastest backtesting platform possible.
>> >
>> >
>> > --- In amibroker@xxxxxxxxxxxxxxx, Keith McCombs <kmccombs@> wrote:
>> >>
>> >> Dingo --
>> >> Please read
>> >> http://www.infoworld.com/article/09/01/22/03TC-windows-multicore_3.html
>> >> for some comparisons between Vista64 and XP64.
>> >> -- Keith
>> >>
>> >> dingo wrote:
>> >> > 50% longer for AB to run - hardly believable.
>> >> >
>> >> > d
>> >> >
>> >> > On Thu, Mar 12, 2009 at 3:51 PM, Keith McCombs <kmccombs@
>> >> > <mailto:kmccombs@>> wrote:
>> >> >
>> >> > A few personal thoughts:
>> >> > 1. The 2.93GHz costs $470 more than 2.66. I doubt that very many
>> >> > of us can tell the difference without a stopwatch.
>> >> >
>> >> > 2. I don't know about running AB, but in many published speed
>> >> > tests, Vista64 takes about 50% longer than XP64.
>> >> >
>> >> > -- Keith
>> >> >
>> >> >
>> >> > ozzyapeman wrote:
>> >> >>
>> >> >> Thanks. I was looking into i7 based-PCs. But aren't all i7's
>> >> >> quad-cores to begin with? And apparently the OS sees an i7 as
>> >> >> 8-core due to the way it's designed.
>> >> >>
>> >> >> Dell seems to have a good deal on i7 XPS desktops at 2.93 Ghz
>> >> >>
>> >> >> --- In amibroker@xxxxxxxxxxxxxxx
>> >> >> <mailto:amibroker%40yahoogroups.com>, dingo <waledingo@> wrote:
>> >> >> >
>> >> >> > Intel dual core i7 with fast clock - AB only uses 1 core. 3gig
>> >> >> mem. Intel
>> >> >> > SLC flash (if you've got the money otherwise WD Raptor). Medium
>> >> >> video card.
>> >> >> >
>> >> >> >
>> >> >> > d
>> >> >> >
>> >> >> > On Wed, Mar 11, 2009 at 12:57 AM, ozzyapeman <zoopfree@> wrote:
>> >> >> >
>> >> >> > > I should add that I need to run exhaustive optimizations, as
>> >> >> opposed to
>> >> >> > > CMAE or using Fred's IO, as my variables are discontinuous -
>> >> >> not traditional
>> >> >> > > indicator-type variables.
>> >> >> > >
>> >> >> > > In my parallel dream life, I run AB Ultra Professional 7.0 on
>> >> >> 8 state of
>> >> >> > > the art graphics cards, with thousands of processors, 500,000
>> >> >> times faster
>> >> >> > > than good old AB 5.24.
>> >> >> > >
>> >> >> > > But I digress. ;-)
>> >> >> > >
>> >> >> > > In the real world, what is the best I can do?
>> >> >> > >
>> >> >> > >
>> >> >> > > --- In amibroker@xxxxxxxxxxxxxxx
>> >> >> <mailto:amibroker%40yahoogroups.com>, "ozzyapeman" <zoopfree@> wrote:
>> >> >> > > >
>> >> >> > > > Now that I am just about trading full time, my main PC has
>> >> >> become a
>> >> >> > > dedicated trading computer. That only leaves me with a clunky
>> >> >> second PC
>> >> >> > > (6-years old) for doing offline optimizing. And it's waaay
>> >> >> too slow.
>> >> >> > > >
>> >> >> > > > So I am in the market for a new PC, and want to get
>> >> >> something powerful,
>> >> >> > > but don't want to overpay for stuff that won't be used. For
>> >> >> example, 8GB of
>> >> >> > > RAM sounds great, but if WinXP only uses 4GB (or 3?) then I
>> >> >> imagine the
>> >> >> > > other 4 GB just goes to waste?
>> >> >> > > >
>> >> >> > > > If I plan to use this PC mainly for offline optimizing and
>> >> >> backtesting,
>> >> >> > > what are the recommended specs? I want as much speed as I can
>> >> >> possibly get.
>> >> >> > > My optimizations tend to be humongous, taking days on a quad
>> >> >> core.
>> >> >> > > >
>> >> >> > > > Any hardware gurus please feel free to chime in:
>> >> >> > > >
>> >> >> > > > - RAM?
>> >> >> > > > - Quad-core vs Eight-core?
>> >> >> > > > - OS?
>> >> >> > > > - HD type (flash vs mechanical)?
>> >> >> > > > - any other hardware/software suggestions for increasing speed?
>> >> >> > > >
>> >> >> > > > Thanks!
>> >> >> > > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > > ------------------------------------
>> >> >> > >
>> >> >> > > **** IMPORTANT PLEASE READ ****
>> >> >> > > This group is for the discussion between users only.
>> >> >> > > This is *NOT* technical support channel.
>> >> >> > >
>> >> >> > > TO GET TECHNICAL SUPPORT send an e-mail directly to
>> >> >> > > SUPPORT {at} amibroker.com <http://amibroker.com/>
>> >> >> > >
>> >> >> > > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
>> >> >> > > http://www.amibroker.com/feedback/
>> >> >> <http://www.amibroker.com/feedback/>
>> >> >> > > (submissions sent via other channels won't be considered)
>> >> >> > >
>> >> >> > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> >> >> > > http://www.amibroker.com/devlog/
>> >> >> <http://www.amibroker.com/devlog/>
>> >> >> > >
>> >> >> > > Yahoo! Groups Links
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> >
>> >> >>
>> >> >
>> >> >
>> >> >
>> >> >
>> >>
>> >
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > **** IMPORTANT PLEASE READ ****
>> > This group is for the discussion between users only.
>> > This is *NOT* technical support channel.
>> >
>> > TO GET TECHNICAL SUPPORT send an e-mail directly to
>> > SUPPORT {at} amibroker.com
>> >
>> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
>> > http://www.amibroker.com/feedback/
>> > (submissions sent via other channels won't be considered)
>> >
>> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> > http://www.amibroker.com/devlog/
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>>
>
>
>
>
> ------------------------------------
>
> **** IMPORTANT PLEASE READ ****
> This group is for the discussion between users only.
> This is *NOT* technical support channel.
>
> TO GET TECHNICAL SUPPORT send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> http://www.amibroker.com/feedback/
> (submissions sent via other channels won't be considered)
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> Yahoo! Groups Links
>
>
>
------------------------------------
**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
TO GET TECHNICAL SUPPORT send an e-mail directly to
SUPPORT {at} amibroker.com
TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
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