cpu and program help

I have win 7. and an AMD 64 bit cpu but I am useing a graphics program that is 32 Bit.

So my cpu will have to take in two 32 Bit at a time from my program to processes it.

So if my program and all programs are 32 Bits why make a 64 Bit cpu?

My cpu will never be taking in 64 Bits at a Time will it?

Well I am running DDR2 800 MHz 64 Bit.
So I know my cpu will take in 64 Bits at a time from my memory.

So let me gess my 32 Bit program will be be working in my Memory and the memory will send the cpu a 64 Bit chunk of Data.

So my memory will wate till it has 2. 32 Bit chunks from my program so it can send one 64 Bit chunk to the cpu??

AmM I right?

 

Why are you worrying over any of this? The point of a 64-bit cpu is primarily to be able to address more than 4GB of memory, that being the limit for a 32-bit cpu.

 

32 bit programs run fine with a 64 bit OS! This explains it much better than I can. http://www.pugetsystems.com/blog/2011/01/13/windows-7-64-bit-running-32-bit-applications/. Hope this helps.



Sorry Earthling, didn't see you until I had posted!

 

I just wanted to know why they do this?

A cpu that is 64 Bit will address more memory.

Then why have a 64 Bit OS?????

 

So if all my programs are 32 Bit I thought win 7. 64 Bit just ment windows will move the 32 bit program around slower?

 

No, it will not.

 

The cpu is just a fetcher and carrier, doing what it's told to do by the OS and running programs. If a running program wants to use a memory location above 4GB the OS has to be 64-bit to be able to tell the cpu where to go.

You may also be wondering why 32-bit can't go above 4GB. Each bit can hold one of two values, 0 or 1, so a byte (8 bits) can have any of 256 values from 0 up to 255 inclusive (2 to the power of 8 is 256, but as we are counting zero as a number then the 256th number is 255). Similarly 32 bits can address 2 to the power of 32, 4,294,967,296 different numbers from zero to 4,294,967,295. In computer parlance we call that number 4 gigabytes or 4,000 megabytes.