View Single Post
  #4  
Old February 24th 12, 11:40 AM posted to alt.windows7.general
Rob
external usenet poster
 
Posts: 97
Default Advantages W7-64 over XP-32

On 24/02/2012 10:22, Fokke Nauta wrote:
wrote in message
...
Fokke Nauta wrote:
Hi all,

Currently I have XP Pro 32-bits. Hardware is Intel I5-750 on a P55
chipset with 4G memory.
I concider installing Win 7 Pro 64-bits, so I can use more memory.
Got a few questions he
a. Are applications on W7-64 with 8G noticable faster then XP-32 with 4G?
b. Does W7-64 allow a multi boot environment?
c. Are there more advantages of Win 7 Pro 64-bits over XP Pro 32-bits?

Thanks in advance for your answers.

Best regards,
Fokke Nauta


If you use a 32 bit application, it might be a tiny bit faster.

http://blog.testfreaks.com/informati...vs-vista-vs-7/

SuperPI-32m
WinXP 18 minutes 1 second = 1081 sec
Vista 18 minutes 4 seconds = 1084 sec
Win7 17 minutes 43 seconds = 1063 sec 1081/1063 =
1.017

If you have a program which uses lots of arithmetic,
such as an arbitrary precision numerics package,
and it is *compiled* for 64 bits (not limited by being a
32 bit program) and runs on a 64 bit OS, that is 65% faster
(it didn't make it to being twice as fast). GMP can be
compiled for 32 bits or 64 bits, and applications using
that package can be 65% faster when you use 64 bit compilation.

The speed is more a function of the characteristics of the
application, than anything else. Older 32 bit applications,
might see no perceptible difference (you'd need a stopwatch
to tell the difference).

*******

Windows 7 has a boot menu, like the other versions of Windows.
It is based on BCD rather than boot.ini. At the very least,
the boot menu may contain older versions of Windows. The only
bad part, is making changes to it. Third party tools are
available for editing the boot menu.

(An editing tool)
http://i51.tinypic.com/rs90yg.png

(Example of editing the hard way, with bcdedit)
http://www.tweaktown.com/articles/17...de/index5.html

(Typical boot menu on the screen during boot up)
http://images.tweaktown.com/content/1/7/1713_23.png

Paul


Thanks Paul, this makes sense. The link which shows the comparisons is very
interesting.
I use a wide variety of applications. Most of them won't be optimised for
64-bit code, I assume. Photoshop CS5 is an exception but the differences are
small and there are limitations. And some applications won't run at all.

I think it won't be an installation of Win 7 64-bits. Stick to XP 32-bits
for now.

Best regards,
Fokke


If you use 32-bit applications which benefit from using as much
memory as available, you will see a significant performance boost
when running them under Win7x64.
Each 32-bit application is allocated a full 4GB of RAM in x64,
instead of 3.something which is available under XP 32-bit.
If you had (say) 16GB of RAM, x64 would allow Photoshop to use
4GB, plus app2 using it's *own* 4GB plus app3 using it's *own*
4GB, all running simultaneously.
I can state from my own experience of using 32-bit image processing
(astronomy) software that using x64 is a huge advantage in my work.
HTH
--
Rob

which needs as

Ads