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Windows 7: 32 bit vs 64 bit Comparison

01 Nov 2011   #361

Windows 7 Ultimate x64, Mint 9

Quote   Quote: Originally Posted by chun96 View Post
Quote   Quote: Originally Posted by FerchogtX View Post
Well, based on my own experience, x64 could run fine in your machine, your processor looks enogh for it, also your 2 Gigs of RAM... my lap was originally running W7 HB with more or less your specs, but it wouldn't hurt if you add 2 GB more in a near future , otherwise you can consider swithching to x32 since you only use 2 GB

See ya!!!
What is "Windows 7 HB"?

Also, would it be very slow if I run 64-bit Windows using only 2GB RAM?
It CAN run it, but I would stick to x32 until you choose to get some more RAM. Would definitely get it in a new computer though.


My System SpecsSystem Spec
02 Nov 2011   #362

Windows 10 Pro X64

Windows 7 HB = Home Basic

No, it would run fine. I'm running Win 7 X64 on a HP Workstation xw4400 (Dual Logical Processor 3.4Ghz) with 1GB of Ram and it runs very well. I have 4GB on order though.
My System SpecsSystem Spec
04 Nov 2011   #363

windows 8.1 Pro x64

Unless have to run 32bit eg. atom then I would use 64bit.

I have yet to come across an app that wont work due to the OS been 64bit.

The only downside of consequence is that the 64bit version will have slightly higher memory usage.
My System SpecsSystem Spec

14 Jan 2012   #364

Windows XP home edition (i think 32-bit)

Thanks , this has helped :) I'll be using 64-bit then.
My System SpecsSystem Spec
16 Jan 2012   #365

Windows 7 Ultimate

verry good

My System SpecsSystem Spec
19 Jan 2012   #366

Windows vista 32bit
facing some problems after installing windows 7

hi , i recently installed windows 7 64 bit on my sony vaio vista its 32 bit,

i m not sure if this is the reason im having these problems like
* my screen is little short on all corners

*my web cam is not working or may be i dont have the drivers installed

Caus im not very good on this so please explain step by step .

thanks for help .

Quote   Quote: Originally Posted by Lordbob75 View Post
There are many, many threads on this one simple question: 32 bit or 64 bit Windows?
Well, there are a few things to consider when making this choice. The most obvious difference between 32 bit and 64 bit is the amount of RAM the system can use. The limit on 32 bit is 4Gb of RAM, whereas a 64 bit operating system (OS) can use up to 8Tb (128 in 64 bit Vista, and 192Gb in Seven).

HOWEVER, this is not the only difference, nor is it the only thing that should be considered. This post will cover the basics of 32 bit computing vs. 64 bit computing in an understandable and simple summary.
*If you are looking for a quick comparison, read the Basics and scroll down to the Pros and Cons and Conclusion sections*

The Basics
-The big difference between 32 bit systems and 64 bit systems is the “Addressable Space”. Each device in the system is assigned an address, which takes some of this space. Because the address space is limited, the more hardware you have, the more space is required to address them. Memory (RAM) will get what is left over, and it is this is what takes usable memory in a 32 bit system from 4Gb of RAM to around 3.25Gb.
-Most software today is written and optimized for 32 bit architecture. This means that there will not be a large performance increase by switching. However, for the few pure 64 bit programs out (such as 64 bit Photoshop), there can be a substantial difference.

32 bit OS
-A 32 bit OS can only address 4Gb of memory. Some of this is then allocated to hardware devices, usually dropping the available RAM to 3.25Gb or 3.5 Gb.
-The addressable space also applies to programs, giving a 2Gb limit of RAM to any one process. This means that 32 bit Photoshop can only ever access up to 2Gbs of RAM.
-Drivers are always a concern. Drivers for hardware usually have a 32 bit version, and there is usually not a problem with 32 bit drivers (finding or using).
-A 32 bit OS has a lower memory requirement to run. For Windows 7, the minimum RAM needed is 1Gb

64 bit OS
-A 64bit OS can address up too 8Tb of RAM (128 in 64 bit Vista, and 192Gb in Seven).
-The addressable space for a 64 bit process is 8Tb. However, a 32 bit process still has the 2Gb limit. So 64 bit Photoshop can access up to 8Tb of RAM, while 32 bit Photoshop (running on a 64 bit OS) will still only be able to access up to 2Gb.
-64 bit drivers used to be harder to find. However, since Vista 64bit drivers have become almost as common as 32bit drivers. In order for a driver to be WHQL-certified by Microsoft, there must be a 32bit and 64bit version of it, which has really helped in producing drivers. I have been running a 64bit OS since Vista and have yet to find a program that doesn't work or hardware that doesn't have a 64bit driver.
-64 bit OS needs more RAM to operate (minimum of 2Gb for Windows), and programs slightly more RAM. This is countered by being able to add WAY more RAM (I have never encountered a problem with 4Gb of RAM on my 64 bit system)
-There is no longer 16 bit compatibility

-RAM limit is the only difference: This is obviously the most well-known difference, but is completely false. There are WAY more differences, some of which go way deep into computer architecture, and others that don't make a difference in performance.
-Non-compatibility: Some people believe that certain things will not work in 64 bit OS, etc. While 32 bit programs and 64 bit programs are NOT COMPATIBLE with the other system (64 bit and 32 bit respectively), Microsoft writes their Operating Systems with a Hybrid architecture (Windows In Windows, or WoW). This means that most 32 bit programs will work on 64 bit systems.
-No performance difference: This one is a quirky question. In general, there is not a large performance increase by switching to 64 bit. This is because most programs are still written with 32 bit architecture in mind, and do not need more than 2Gb of RAM. The difference starts to shine when running things like 64 bit Photoshop or CAD programs where LOTS of RAM is used.
-32 bit is better for gaming because of compatibility issues with the games or drivers: This one just isn't true. I have been running a 64 bit OS exclusively since Vista, and not once have I had a driver or game (except very old) incompatibility. If you are a gamer, a 64 bit OS would be the better choice, especially so you can use more RAM.

Pros (of switching to a 64 bit OS)
-Certain programs written for 64 bit computers can make better use of CPU and RAM, giving a LARGE performance boost (such as 64 bit Photoshop)
-More RAM is available
-64 bit is becoming more and more common. As average RAM in a system increases, there will be no choice BUT a 64 bit system.

Cons (of switching to a 64 bit OS)
-Certain programs may not be compatible with the new OS (very rare)
-Needs a minimum of 2Gb of RAM to run
-Needs a 64 bit processor to run (most made since 2003 are 64 bit)
-System uses more RAM to run the OS and programs
-Drivers may be harder to find and use

In the end, I usually recommend using a 64 bit operating system for all of its advantages. I have used a 64 bit OS for years now, and have encountered so few problems that I have no real reason to NOT recommend it.
However, if you plan on having less than 3Gb of RAM, have an older computer, or a 32 bit processor, I usually recommend a 32 bit system.

I hope this can help to settle all the threads about 32 bit vs. 64 bit operating systems.
Let me know if there is anything I can / should add.

Additional Information:
Windows 7 retail edition will come with 2 install DVDs, a x32 and x64. You can install EITHER version on your computer, but not BOTH. The retail key you received will work with both versions, but is only authorized for one install at a time.

My System SpecsSystem Spec
29 Mar 2012   #367
Mueen Hasan

Windows 7 Ultimate 64bit

Please suggest me weather i should choose 32 bit or 64 bit windows 7 ultimate:
My Laptop specifications are:
Dell Inspiron N4050
Intel Pentium B950 @ 2.10GHz
Sandy Bridge 32nm Technology
2.00 GB Single-Channel DDR3 @ 665MHz (9-9-9-24)
Dell Inc. 02JCHC (CPU 1)
Generic PnP Monitor ([email protected])
Intel(R) HD Graphics Family
Hard Drives:
313GB Western Digital WDC WD3200BPVT-75JJ5T0 (SATA).

I want to use my laptop mostly for watching movies, listening songs, a little bit office work etc.
My System SpecsSystem Spec
29 Mar 2012   #368

Windows 8.1 Pro RTM x64

Hi Mueen Hasan and welcome to W7 Forums

In your case, due to you having only 2GB of RAM (and it being a laptop, where part of the main memory is assigned to the graphics), I would go for the 32-bit version. If you can increase the memory to 4GB (or more), then I might consider 64-bit, but as it stands 32-bit is the way to go.
My System SpecsSystem Spec
29 Mar 2012   #369
Mueen Hasan

Windows 7 Ultimate 64bit

Very Thanks to Dwarf for his so quick reply & for welcome a new member.
Now i got the point & going to install 32 bit windows 7.
In windows 7 forum, it was my first post & i get my answer so immediately.That's cool.
My System SpecsSystem Spec
16 Apr 2012   #370

windows 7 home premium x64

Great post, very well written :) thank you
My System SpecsSystem Spec

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