Re: FX-55 vs. X2 4800+

On Fri, 4 Nov 2005 08:17:50 -0800, "formerprof" <formerprof@xxxxxxxxx>
wrote:

>I am running with an FX-55 CPU on the ASUS A8n-SLI Deluxe board. My CPU is
>always at full load because SETI is running 24/7. Could I expect any
>noticeable performance gains from the 4800+ X2? Presumably the SETI
>calculations would be primarily confined to one of the two cores.
>
>My memory is running at DDR 400, 2T. I've read somewhere that the newer X2
>Athlon 64s have improved memory bus performance. Is there a chance that my
>chips will run at 1T with the newer CPU? I have 2x1gb 3,3,3,8 DIMMs.
>
>All help will be most gratefully received. Good wishes to all.
>
>formerprof
>

An X2 CPU would undoubtedly give you a huge increase in performance,
since as you say one core would run SETI while the other would be free
to run whatever else you are doing.

As far as the 1T/2T, I would not expect the CPU to change that, since
the command rate is determined by the motherboard, not the CPU. In
any case you would see no measurable difference in overall performance
even if you did change the command rate to 1T.

The 4800+ X2 is a good upgrade; it will run single-threaded
applications about as fast as your FX-55, and since it is fabricated
with a 90nm process instead of the 130mm process of the FX-55 and runs
at 2400mhz instead of 2600 mhz, it will run much cooler.

Phil
.

Relevant Pages

  • Re: [Q] Lowest scheduling priority
    ... Once I doubled my RAM, ... With seti running, it gets ... > a significantly lower amount of CPU time, ... > This is consistent with the scheduler trying to avoid allowing processes ...
    (comp.os.linux)
  • TaskManager = Fridge light
    ... What with things slowing down a bit I've set the task manager to default appear ... I have CPU 1 set, or rather I have Seti set to use ONLY CPU 1. ... The page file usage shows no change related to the usage graph. ...
    (microsoft.public.windowsxp.newusers)
  • Re: [SLE] For or against ..Hyperthreading.
    ... >> I'll take a single cpu any day over multiple cpu's that DON'T ADD UP ... So, for example, I'll get more SETI ... except on the most compute intensive task. ... > updatedb does nothing else except the updatedb. ...
    (SuSE)
  • Re: FX-55 vs. X2 4800+
    ... > since as you say one core would run SETI while the other would be free ... > As far as the 1T/2T, I would not expect the CPU to change that, since ... > the command rate is determined by the motherboard, ... I thought SETI ran in the background only when other tasks are not running. ...
    (alt.comp.periphs.mainboard.asus)