Difference Between 64 Bit & 32 Bit Systems
Thirty-two-bit systems were the standard for much of the 1990s and early 2000s, but as technology has become more powerful and less expensive, 64-bit systems are now just as readily available. The difference between the two is mostly related to processing power. How you use your computer will determine how critical it is that you have a 64-bit system. Operating systems such as Windows Vista and Windows 7 are distributed in 32- and 64-bit versions.
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Differences
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Essentially, the difference between 64- and 32-bit systems is how they handle data. A 64-bit system can handle data at a rate of 64 bits at a time. A 32-bit can process only 32 bits at a time. Thus a 64-bit chip can better handle more intensive applications because of its higher data transfer rate. This also means that 64-bit processors are better able to fully utilize the benefits of extra system memory, as it can move data in and out of the RAM at a faster rate.
Multitasking
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Multitasking, or running multiple applications simultaneously, is where the 64-bit system is most notably superior. The ability to handle twice the amount of data at a time as a 32-bit system allows a 64-bit system to multitask seamlessly. A 32-bit system can also multitask, but it will be slower. Even if the systems have the same amount of RAM, the 64-bit system will be faster because it can use the extra RAM more efficiently.
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Software
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Powerful applications are usually sold in both formats. Running a 32-bit version of an application on a 64-bit system will work fine, but you will not have all the speed benefits as you would with a true 64-bit version. If you have a 32-bit system and are considering upgrading to 64, consider how many programs you would have to purchase in the 64-bit version to truly get the most from your upgrade.
Compatibility
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While a 64-bit system can run 32-bit software without a problem, the reverse is not true. Sixty-four-bit versions of software require that your processor can handle its operations at the higher speed. Other related hardware, such as hard drives and system memory, must also be 64-bit compatible.
Power Users
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The average user will not notice obvious benefits of having a 64-bit system. Simple tasks such as browsing the web or checking email will be just as fluid on a 32-bit system. For applications that process huge blocks of memory and complicated processes for long periods of time, however, 64-bit systems offer noticeable improvements. If you are using your computer for a job that involves multimedia editing or creation, 64-bit capability is essential for maximum productivity.
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References
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