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Re: Fear of the 64, was OT: PC burn out.
NZG <email@example.com> wrote:
> I know it, the writing is certainly on the wall.
AMD _killed_ 32-bit Athlon last year. All you can find are
old, discontinued production models, and even the Socket-462
Sempron is hard to find. Most people don't know, but the
PAE52 Athlons/Opterons are the exact same core design as the
That's why AMD was able to switchover so quickly. The
original 1999 Athlon design used the same 40-bit interconnect
of the Digital EV6 / Alpha 264. The Athlon64/Opteron improve
on the design, and add a multi-point bus (with various
improvements) -- many of those learned from the design of the
_All_ current Athlons -- 32-bit or 64-bit (including Opteron)
-- share the same, physical 40-bit addressing limitation.
> Shopping for processors I can see all the new AMD 64's down
> there in the $70-$90 dollar range. (I don't want to shell
> out over $200 for a high end IA32 Intel)
The best desktop Pentiums you can buy for Linux are the
Socket-479 Pentium Ms, the same ones used in notebooks. But
you'll pay for them.
> But I still fear the 64 bit processor.
Considering the AMD64 designs are _no_different_ when it
comes to PAE36 mode than their 32-bit predecessors (which
share the same, core design), they are no less compatible
when running a PAE36 operating system.
In fact, Intel's P4 has a history of breaking some pre-i686
ISA compatibility, whereas AMD still does not with even the
> I'm running a lot of high end applications (Java,
If you're running a Linux/x86 (PAE36) OS, then _nothing_
changes -- the AMD64 processor runs in PAE36 mode
Sun only recently added a Linux/x86-64 JDK/JRE.
But even I still run the x86 version, including with Firefox
i386, on Linux/x86-64 (PAE52).
Again, no change!
> Transgaming's WineX, etc...)
Actually, because of how Wine works, it is a standalone PAE36
machine _regardless_ of whether or not the OS is PAE52 or
PAE36. I'm running Cedega (WineX) under Linux/x86-64 on my
Athlon 64 with my old Wine tree from my earlier Athlon MP
> and I am unsure how well this is going to work in the
> 64 bit world.
Then don't run a PAE52 (Linux/x86-64) distro.
Just run a PAE36 (Linux/x86) on it.
_Nothing_ changes if you do.
> Are my fears unfounded?
Yes, considering _all_ Athlon64/Opterons execute PAE36 (x86)
OSes _exactly_ like Athlon.
Bryan J. Smith | Sent from Yahoo Mail
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