by Mike Masnick

The 64-Bit Question

from the who-needs-it? dept

When it comes to technology, people seem to love numbers, and bigger is always better. That explains part of the reason why AMD has been doing quite well lately with their 64-bit chip. However, Simson Garfinkel explains all of the details about 64-bit (and 32-bit) computing to explain why, unless you're doing some massive data mining or working on specific scientific applications, the only people 64-bit computing (by itself) is really helping out are the marketers who tell you need to buy a 64-bit computer. While there are performance benefits to 64-bit chips, for the most part, the benefits are because the chip is newer and made with better, more modern technology - and don't have anything to do with its 64-bitness.

Reader Comments (rss)

(Flattened / Threaded)

  1. identicon
    Anonymous Coward, Jun 3rd, 2004 @ 12:03pm

    No Subject Given

    This is exactly the same situation that existed when 32 bit chips first came out. Then after a period of time, the bulk of applications evolved to take advantage of the 32 bit processors. The key reason for uptake (othere than good marketing) won't be the amount of memory that is accessible but instead the power inherent in processor instructions that are 64 bits wide.

    reply to this | link to this | view in thread ]

  2. identicon
    Jeff R, Jun 3rd, 2004 @ 12:53pm

    No Subject Given

    Unless you need more than 4G of memory address space in your box... There's all kinds of different workloads (including the 'embedded appliance' that the company I work for makes) that would take advantage of more memory pretty easily.

    reply to this | link to this | view in thread ]

  3. identicon
    momo, Jun 3rd, 2004 @ 1:56pm

    neverming the 64bit-ness

    Nevermind that fact that an opteron is 64 bit. It runs 32 bit apps faster,cooler and is cheaper than similar 32 bit chips (from amd and intel).

    pfft. Why wouldn't someone get one?

    reply to this | link to this | view in thread ]

  4. identicon
    Anonymous Coward, Jun 4th, 2004 @ 6:57am

    Re: neverming the 64bit-ness

    explain "cheaper"

    reply to this | link to this | view in thread ]

  5. identicon
    Nonesuch, Jun 5th, 2004 @ 1:17am

    Sun Microystems went through this years ago

    Sun launched the 64-bit UltraSparc processor line almost exactly ten years ago. Initially there was no 64-bit Solaris. With Solaris 8 many sites began to experiment with running in 64-bit mode, unless they needed a driver that was only available as a 32-bit binary.

    The average userland application compiled for 32-bits runs fine under Solaris Sparc 64, if just a bit slowly.

    About three years ago, Sun ago started to ship "64-bit only" UltraSparc III platforms; newer systems such as the 280R and V480 offered 900Mhz and 1.1Ghz CPUs, and could address significantly more than four gigs of RAM, but would only boot 64 bit Solaris 8/9.

    For most Solaris shops, the processors have been 64-bit capable for many years, but the driving factor behind using the capability wasn't about perceived or actual performance gains, but rather that the latest, fastest, and most scalable Sun hardware would no longer boot 32-bit kernels, could no longer interoperate with 32-bit device drivers.

    reply to this | link to this | view in thread ]

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