Lately I noticed that my old laptop (Toshiba Satellite L500-1DT) works better with x64 based Ubuntu version, than x32. Well with faster I meant - Adobe Flash videos and apps works much better. Software Center and APT apps works much smoothly. Everything works flawless on x64. Cooling fan works a lot less (not cooling the system all the time, like on x32). On x32 bit version I had a feeling, that my computer will overheat. 2 weeks ago my battery died when I ran x32 version. I don't know, is it was because of overheating or coincidence. It got REALLY hot, and very very slow. I'm running on Celeron(R) Dual-Core CPU T3000 @ 1.80GHz × 2 and Intel GMA45 video chip-set (with 256mb shared memory). RAM - 4 GB. Ubuntu 11.10.
This is not the only case and only machine i discovered that x64 works FAR more better, than so-called "Recommended 32-bit version". I'm really curious about this, and would like to know answer once for all.
Please, explain this to me or guide me with a link.
Thank you !
64-bit OS operate twice as fast if not more depending on the hardware it runs on. Going from 32-bit to 64-bit increases the OS's ability to process larger chunks of data. Therefore it operates much faster. Also, 64-bit OS will use more memory than a 32-bit OS. A 64-bit register can store 264 = 18446744073709551616 different values, a number in excess of 18 quintillion. At the moment x86-64 processors use 48 physical address lines; therefore a processor with 64-bit memory addresses can directly access 264 terabytes of byte-addressable memory.
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