Intel Plans A Common Socket For Xeon, Itanium

stonedonkey writes "According to EE Times, Intel is planning a common system platform for the Xeon and Itanium by 2007, "creating a unified 64-bit motherboard with a new, one-size-fits-all socket." Intel's Jason Waxman says , "It has been something that customers have been asking us for for a while now...the reseller [currently] has to have an inventory of both boxes on hand." Feeling the heat from the competition, cutting losses, or just friendly customer service?"

Comments

A polite way of keeping Itanium

[Linus Sixpack]

I imagine Intel wants a polite way to keep the Itanium on the books for very special applications and to save face. Zeon will, at least in the near future, be the processor of choice and a common socket will keep it from eclipsing the Itanic.

There might even be a chance that the market will change enough to want the Itanic, but not if they have to maintain specialized hardware for a currently very niche market.

LS

Re:A polite way of keeping Itanium

[Anonymous Coward]

Disagree -- this helps Itanium much more than it helps Xeon.

Most current Itanium use is for larger systems, which is already entirely specialized hardware. Common mobos allow Itanium tomove "down market" into small servers and workstations by opening the whole range of mainstream chipsets at no additional cost.

I'm assuming these systems will use Intel's new platform-independant firmware.

Re:A polite way of keeping Itanium

[Jason Earl]

Exactly. This is all about making it easier for Intel to sell Itanium servers. Intel doesn't want to go through the expense of designing and QAing separate Itanium motherboards for the five or six people that actually want Itanium. If the Xeon and Itanium share the same motherboard then OEMs can stock one motherboard and "upgrade" customers to Itanium if that's what they want.

If AMD wasn't serious competition with their AMD64 chips then Intel wouldn't even release 64 bit Xeons, but as things stand they don't have much of a choice.

Re:A polite way of keeping Itanium

[sirsnork]

Both Xeon and Itanium suffer the same woes, this gives them a good chance to correct both at the same time, although it will take a massive engineering effort on their part.

Intel are going to have to drop their shared bus architecture and move to a point to point system like AMD or memory performance will suffer greatly, otherwise you can only run your memory at your FSB speed and adding more procs just means they all get less mem bandwidth. This is going to become more pronounced with the introduction of Dual Core CPU's. Also since Xeons are build on the core of the desktop CPU's they will also have to change to follow suit (assuming Intel are going to move to a P2P architecture). At that time one would assume we would be talking about the P5 and one would also have to assume Intel would move the memory controllers onto the CPU's like AMD have.

That is quite a lot of work for Intel to do when they are also talking about dual cores. It's a lot of tech to get right all at the same time, especially given the delays involved with the Nocona launch and the associated motherboards. Itwould give them some rather nice options though, rather than using Hypertransport they could use PCI-E to join CPU's and have controllers on the CPU like the Opterons. Also because the CPU's are joined with a serial bus you can move them onto riser cards and make the most of the real estate in the chassis meaning you should be able to pack more CPU's in a smaller space.

The thing here though is that at some level the CPU's need to talk the same language, at least for initialisation at boot, although we are presuambly talking about 2 completly new cores so ever that is within the realm of possibility.

Re:Sounds like they're admitting defeat.

[NerveGas]

It's not admitting defeat, it's getting rid of something that hasn't made much sense.

The Xeon line has traditionally been both the more lucrative and the more "stable" line, on the idea that businesses wanted long-term stability. When you bought a Xeon motherboard, you knew that it would be compatible with some of the upcoming Xeons in FSB and slot, and with a VRM module, even for different voltages.

A very large side-effect is that the Xeon line was tied to slower FSB/memory rates, and a lot more expensive. In reality, most people don't upgrade their Xeon chips - they move to a new architecture (P2->P3->P4, etc.)

Looking at the P2/P3 Xeons, it was long after the shift to a 133MHz FSB when the Xeons played catch-up. And it's just now that the P4 Xeons are getting away from the 533MHz FSB.

So, they're taking their most expensive, most lucrative processers, and hindering the performance. While it worked while Intel was the 800-pound gorilla (and you had no other choice in 2-way, let alone 4-way machines), that's no longer the case. There's competition in the market - good competition. It was a real kick in the pants to shell out $5000 to $15,000 on Xeon systems that had a slower FSB than the $500 desktop counterparts!

So, now, they're going to have to do the sensible thing: Start giving actual performance in exchange for customer money. Rather than have the "high-end bus" and the "low-end" or "mid-range" bus, it makes a lot of sense to just have all of them use one bus design - theoretically, a fast bus.

The Athlon bus was designed so that you could, in theory, plug an Alpha into an Athlon board

I really don't think that was the idea. AMD was looking for a front-side bus design, and Intel's wasn't an option. The Alpha design was available for the right price, and so it was used.

Do you believe that x86-32 BIOS code is going to work to get an Itanium CPU

I believe that Intel has already stated that they want to make some radical changes to the way the BIOS works.

Sorry, Intel; I'd say that this is the beginning of the end.

Unless they're able to really shift direction, I'd agree.

steve

Re:Common socket, gmpf!

[NoodleSlayer]

If I remember correctly the reason why the Athlon and P4 have different sockets is because the two use radically different FSB technology, and between the Athlon 64 and P4 it would be nearly impossible.

Moving to their own socket was perhaps one of the best decisions AMD made for the Athlon, it allowed them to create their own technology instead of having to follow Intel's lead as far as motherboard design goes.

Of course to top it all off Intel claims that all of its bus technology is "proprietary", this is why nVidia hasn't made an nForce chipset for the P4 yet. AMD on the other hand has a much more open policy and actively encourages 3rd party motherboard and chipset makers. A policy which has worked very well for AMD to date.