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Forums - PC - What is the differnece between windows 64 and 32 bit?

vlad321 on 04 November 2009

Get 64-bit. Maybe it's not as prevalent now but give it another year and the benefits with apps and stuff will start coming in.



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Rath on 04 November 2009

Doesn't a 64 bit operating system have twice the word size?



Homeroids on 04 November 2009
Xoj said:
Homeroids said:
@Xoj

It all depends on the Win7 version in regards to the memory limitation. Most versions go to 192gb.

http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.aspx#physical_memory_limits_windows_7

i know i said it could go as 256gb theorically, but min limit it's 8gb for home basic.

Soz, misunderstood :). However upper limit is 192gb (not that we will be using a full 192gb anytime soon) and I think the Starter version, which is limited to 2gb, is not available in Western type countries?



Xoj on 04 November 2009
Homeroids said:
Xoj said:
Homeroids said:
@Xoj

It all depends on the Win7 version in regards to the memory limitation. Most versions go to 192gb.

http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.aspx#physical_memory_limits_windows_7

i know i said it could go as 256gb theorically, but min limit it's 8gb for home basic.

Soz, misunderstood :). However upper limit is 192gb (not that we will be using a full 192gb anytime soon) and I think the Starter version, which is limited to 2gb, is not available in Western type countries?

i only seen one starter edition in my entire life. one. and the toshiba wasn't bought here.

and in read somewhere it was going to be twice vista.

vista = 128gb.so in the end they got lazy i guess.



Kasz216 on 04 November 2009

Yeah, just wondering cause i had to look up the bit version to download some software... (computer came with 64) and i was wondering what the difference was.



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Xoj on 04 November 2009
Kasz216 said:
Yeah, just wondering cause i had to look up the bit version to download some software... (computer came with 64) and i was wondering what the difference was.

yeah ur pc shoud able to run many 32bit apps it creates a program files X86 folder.

but 64bit native apps would be faster and able to get more ram.



Kasz216 on 04 November 2009
Xoj said:
Kasz216 said:
Yeah, just wondering cause i had to look up the bit version to download some software... (computer came with 64) and i was wondering what the difference was.

yeah ur pc shoud able to run many 32bit apps it creates a program files X86 folder.

but 64bit native apps would be faster and able to get more ram.

Well that explains what the program file X86 folder is too.

That confused the hell outta me too.



Uberkiffer on 04 November 2009

Wow, I've got a bachelors in Information Systems and I've noticed alot of people for some reason think that 32bit is 2x faster than 64bit, this is WAY OFF. To explain, 32bit can have 32 spaces of 0's and 1's. 0101 is 4 bits lot, which has 16 different possibilities of input code (0000, 0001, 0010, 0100... etc..). 0101 1100 is 8 bits long and processes 256 possiblities of input code. Every bit added is equal to every previous bit *2. Once again, for example 0101 is 4 bits (16 possibilities), 1 0101 is 5 bit and has 32 possibilities, just as 10 0101 is 6 bit and has 64 possibilities.

If you followed any of that, then you can understand that 32 bit to 64 bit is actually a huge difference in computational potential. 32 bits 2^32= 4,294,967,296 possibilities. 64 bits 2^6=18,446,744,073,709,551,616 possibilities, which is exactly 4,294,967,296 times more possibilities, which is far more than simply two times the power.

Beyond all of that, it's about the coding and the algorithims to make the extra space that much more badass.



Kasz216 on 04 November 2009
Uberkiffer said:
Wow, I've got a bachelors in Information Systems and I've noticed alot of people for some reason think that 32bit is 2x faster than 64bit, this is WAY OFF. To explain, 32bit can have 32 spaces of 0's and 1's. 0101 is 4 bits lot, which has 16 different possibilities of input code (0000, 0001, 0010, 0100... etc..). 0101 1100 is 8 bits long and processes 256 possiblities of input code. Every bit added is equal to every previous bit *2. Once again, for example 0101 is 4 bits (16 possibilities), 1 0101 is 5 bit and has 32 possibilities, just as 10 0101 is 6 bit and has 64 possibilities.

If you followed any of that, then you can understand that 32 bit to 64 bit is actually a huge difference in computational potential. 32 bits 2^32= 4,294,967,296 possibilities. 64 bits 2^6=18,446,744,073,709,551,616 possibilities, which is exactly 4,294,967,296 times more possibilities, which is far more than simply two times the power.

Beyond all of that, it's about the coding and the algorithims to make the extra space that much more badass.

See... that I actually knew. About bit sizes being far more drastic then double.  Just didn't understand what impact that may have on the operating system.



Rath on 04 November 2009

@Uber. Doesn't 64 bit also require far more address space though? Also does 64 bit mean double word size?