How do I know - 32 Bit OR 64 Bit

[robertq]

How do I find out if my PC is a 32 bit or 64 bit ?

I want to get windows vista & need to know which version of vista my pc will handle.

I would like to get the Ultimate Edition.
My 2 PCs have following configuration ;

(1) Dell dimension 8300

P4 2.6 GHz ( HT )

Intel 875 P Mother Board

512 MB DDR

250 GB SATA HDD

Win XP Pro SP2

-------------------------------------------------------------------------

(2) Dell Optiplex GX 620

P Dual Core 3.0 GHz

Intel 945 G Mother Board

2 GB DDR2

2X250 GB HDD

Dual Monitor Card

Win XP Pro SP2

Thanks
Robert

 

[Didou]

Download CPU-z & see if it says that your CPU has the x86-64/AMD64/EMT64 instruction set.

 

[altheman]

Unless you ordered or installed x64, then your pc is most likely 32bit. Also check under System Properties.

 

[Didou]

I think he's asking if his computer would handle a 32-bit or 64-bit version of the upcoming Vista. CPU-z is the easiest way to find out what your CPU supports.

 

[F1N3ST]

1-32 Bit
2-64 bit

1) Dosnt say dual core
2) Is dual core, which means 64bit.

 

[Coolmatt]

The second one is definitely x64 (64-bit) because of the dual-core. The first one, however, is a Pentium 4 and I highly doubt P4's are 64-bit.

EDIT: If you want to see if any of those computers can run a certain Windows Vista version, use this: http://www.microsoft.com/windowsvista/getready/upgradeadvisor/default.mspx

If one of those computers has built-in graphic chipsets, you may not be able to run the Aero desktop display with Windows Vista. Just run the check and you'll see what your computer can handle.

 

[kitty500cat]

I think some P4s are 64-bit and some aren't. Download CPU-Z and check if it says x86-64/AMD64/EMT64 or whatever; or figure out the model of your cpu and check Intel's website.
kitty500cat