Re: AMD dual core vs Intel core 2 quad
On February 6, 2008 08:35 am Francesco Pietra wrote:
> In the last few days I asked advice about upgrading from a 2-way Tyan
> motherboard Thunder K8WES2895 with two series-2xx AMD dual core opteron
> to a 4-way motherboard. I learned from both Lennart Sorensen and Daniel
> Tryba that I can't use my series 2xx and should buy series 8xx. The
> price for such system is largely beyond what I can afford for private
> use.
Opteron 200-series can only be used in 2-socket motherboards. With
dual-core CPUs, this gives you 4 CPU cores to use.
Opteron 800-series can be used in 4-socket motherboards. With dual-core
CPUs, this gives you 8 CPU cores to use.
Both of the above are based on the same CPU architecture, and use the same
RAM -- DDR-333 or DDR-400.
The newer Opterons (1000-, 2000-, 8000-series) use DDR2-533, DDR2-667, or
DDR2-800 RAM. So you can't use your RAM in newer motherboards with newer
Opterons.
Intel Xeon processors use FB-DIMM RAM, so you can't use your RAM with
those. These can be used in 2-socket or 4-socket motherboards, with up
to 4-cores per socket. These are also very expensive, run very hot, and
require very specific chipsets and motherboards. Depending on the
workload and RAM requirements, these are either a lot faster than
Opterons or a lot slower.
Intel Core2 processors use DDR2 RAM and only on 1-socket motherboards.
The only way to save parts would be to get a 4-socket motherboard and AMD
Opteron 800-series PCUs. Then you could re-use your RAM.
Otherwise, you have to get new CPUs, new RAM, and a new motherboard.
--
Freddie Cash
fjwcash@gmail.com
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