On 9/27/2012 2:47 PM, Shaun Thomas wrote:
On 09/27/2012 02:40 PM, David Boreham wrote:
I think the newer CPU is the clear winner with a specintrate
performance of 589 vs 432.
The comparisons you linked to had 24 absolute threads pitted against
32, since the newer CPUs have a higher maximum cores per CPU. That
said, you're right that it has a fairly large cache. And from my
experience, Intel CPU generations have been scaling incredibly well
lately. (Opteron, we hardly knew ye!)
Yes, the "rate" spec test uses all the available cores. I'm assuming a
concurrent workload, but since the single-thread performance isn't that
much different between the two I think the higher number of cores,
larger cache, newer design CPU is the best choice.
We went from Dunnington to Nehalem, and it was stunning how much
better the X5675 was compared to the E7450. Sandy Bridge isn't quite
that much of a jump though, so if you don't need that kind of
bleeding-edge, you might be able to save some cash. This is especially
true since the E5-2600 series has the same TDP profile and both use
32nm lithography.
We use Opteron on a price/performance basis. Intel always seems to come
up with some way to make their low-cost processors useless (such as
limiting the amount of memory they can address).
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