How are they meaningfully different?
Does a Kentsfield produce different arithmetic results from a Clovertown? No.
Is a Kentsfield slower than a Clovertown. No - often it will be a bit faster - sometimes slightly slower.
It is completely illogical to claim that you can't compare the Intel Core2 desktop chips and the Core 2 server/workstation chips. On some dimensions (the fact that the Xeons can support much more RAM) they differ significantly, on other dimensions (speed) they're virtually the same.
Um, are you that far out of it?
Oh wait! I got it! I'm going to go grab a steak and a pound of hamburger from the grocery store, and compare those. Both are meat right?
Let me go at this, one more time for you and the cheap seats.
It is NOT a logical PRICE comparison, to try and compare a Mac Pro with Xeons, to a HP with Core 2's. They are different processors.
IF you want to argue that C2 is a comparable processor, then you're missing the point I'm making all together. Completely missing it.
If you go to store A and price a DVD, then go to store B and price a different DVD, what's the point? To make a price comparison that is accurate, both parts need to be the same part. In the HP comparisons that were trying to make it look like HP had the same thing for half the price, the parts were not the same, so that is what it is not a logical PRICE comparison.
Whether or not the C2 is capable of the same or similar performance is completely irrelevant. They are different part numbers, simple as that and to compare steak to steak, or a dvd to a dvd, you have to price the same thing at the different stores.
Actually, the opposite of what you claim is true.
Since the advance of technology has led to rapidly dropping prices for given level of performance - overbuying for future expansion can be really foolish.
Today I can buy a quad core 3 GiB system for $800 or so. 3 years ago a dual system with potential capability to upgrade to quad would have been about $20K. (And if I had spent $$$ to upgrade it, I'd still have something much slower than the $800 system.)
If your needs change tomorrow - you can be sure that tomorrow's system will be muxh faster and cheaper than today's system. Spending too much today is simply stupid.
With this final quote you give, I really can see that you just don't grasp the basic concepts I'm trying to convey. You keep sticking on this 800 miracle system, that you're not going to see. If you want the HP, go buy it.
You talk about RAM, and now you're trying to get off your point with upgrading processors from dual to quad. Make up your mind.
First it was too much max RAM capacity, and now it's too much core capacity.
I hate to break it to you, but the vast majority of people don't trash their computer and buy a new every year. They tend to want something that will last them for 3-4 years, and look for something with a little more power than they need today so that it will still run well towards the end of their cycle.
Getting off on a tangent about how fast technology is growing, and what a 16 or 32 core system will cost 3 or 4 years from now as compared to a Mac Pro with 8 cores today is irrelevant. Those systems aren't here today. However, if you don't need 8 cores today, whats to say you won't appreciate them being there in 2 years as programs start to eat more resources, or your needs change?
I get what you're trying to do. You're trying to drag the MP thread to your mid-tower cause, and I'm not going to fuel it any more.
So for my closing, and a final time for the cheap seats, comparing the PRICES of a HP with DIFFERENT PART SPECS against a Mac Pro is an illogical PRICE comparison.