It isn't a deal breaker in the future either. Those PCI-e lanes for for "lower and moderate speed" I/O implemented with discrete chips. Here is a block layout for one of the new Thunderbolt desktop boards that Intel introduced that Anandtech looked at.
Here the dual 1GbE , thunderbolt , and extra SATA controllers are hooked to the support chipset. A very similar approach could be used on the workstation Mac Pro models where USB 3.0 would replace that additional SATA controller since didn't have USB 3.0 in the core chipset. Also Firewire 800 wouldn't be hiding behind some x1 PCI-e switch at the bottom either.
Since the C600's the E5 models use also have Storage control unit (SCU) it probably isn't a good idea to hook Thunderbolt to it to saturate the DMI link with traffic. But something like USB 3.0 would work just fine.
TB is part of what I'm thinking about, but in terms of the C600, my primary thinking is based on discrete RAID controllers (Marvell, LSI, PMC) where the designer isn't willing or able to utilize PCIe lanes from the CPU's PCIe controller, particularly a 6.0Gb/s spec'd component.
Real potential for bottlenecking in this instance (DMI throttles to ~1320MB/s, but 4x SATA III ports can push ~2200MB/s sustained).
If the Tick/Tock cycle for Xeon class is moving to 4 years then the chipset is probably going to be put on same cycle as the CPUs. I don't think it is going to be quite 4.... but likely more than 2.5 .
Of course that would be the case (no way I see them doing a new chipset for each half of the Tick-Tock cycle). I'm not sure it will be that quick of a turn-around now though (2.5 year for the entire cycle), given they don't have any real competition in this particular segment as well as increasing complexity of both the design and process.
Hence the horrible conclusion as per the time frame. I truly hope I'm wrong on this, but I've that sinking feeling it's realistic.
But that is even all the more reason they can't skip adding something like USB 3.0 . If the motherboard is static for 2 years then can't really pass up something that is about to explode in growth now.
I agree.
Unfortunately, I'm accustomed to MBA's running businesses based on accounting with ever decreasing regard to other factors (just focus on quarterly profits), such as long-term planning.
For the E5 2600 this is a complete non issue. There are 80 PCI-e v3.0 lanes. That is a plenty to hook motherboard embedded controllers to and still have enough left over to fully support 4 PCI-e slots without resorting to PCI-e lane over-subscription with PCI-e switches.
In this case, sure.
But I see the SP as leading the sales figures vs. the DP systems. Corporate purchasing budgets are stretched ever thinly, so they're looking very closely at cost/performance (ROI) on their tech purchases. And Intel has listened IMHO, by delivering some very powerful SP CPUID's to fulfill that need. They're certainly not the performance leader, but they do offer a lot of performance for the money, and are suitable to a great many tasks in the workstation segment (majority).
DP systems will still have their niche, but I see that sub-segment becoming ever smaller. Clusters will also chip away at this group, as it allows a reduction in labor.
Even for the E5 1600 with a moderate amount of switching still can have two "clean" PCI-e non-switched sockets. ( e.g., in a Mac Pro like set up pair one x4 socket with embedded TB controller and another x16 socket with embedded GPU). If the GPU is integrated into the CPU again this is a trivial issue. On the current Mac Pro's the two x4 PCI-e slots are switched now and no one is really howling about it.
This is certainly a possibility.
Some have noticed it affects them negatively, but it's not the majority.
But I can see it being more of an issue in companies with extensive IT infrastructures (dual GPU's + FC controller would consume all 40 lanes; if they need a RAID card as well, something will have to run on a reduced lane count, assuming there is another slot available).
That's flawed, IHMO. There is a place for TB on any system with a integrated GPU.
I worded it incorrectly. I meant as a primary high-speed interconnect, particularly on a workstation.
There will be a few that need it for sharing peripherals, such as importing camera footage for example.
Now this could change if Intel gets the optical portion out in the wild, and in particular, adds networking capabilities (a cheap optical network would definitely attract enterprise users). But I've not seen a time-line on this, and given the limitation of the optical modulators (cost over-runs IIRC), will take time to get the component cost down to the level it would need (i.e. graphene based, which still needs R&D to perfect).
Desktops don't 'rule' the PC market anymore. Laptops and all-in-ones do.
I'm not saying laptops, AIO's, and devices don't. But I've kept my remarks to the workstation market, which is where the MP is situated.
TB in the consumer space absolutely has a place, and I expect it to be an ever increasing one. But not so much in the enterprise market
unless it can be formed into an inexpensive optical network.
I seen bean-counters too. But Apple is pulling in so many beans with the iPad and iPhone that they are quite busy just finding places to stuff all the money. I could see at a company where margins were challenged. At Oracle, HP, IBM ... something struggling and somewhat unaligned like the Mac Pro might be dead. (e.g., IBM chucked their PC division long ago and HP almost did the same thing. )
Apple is in a unique position ATM, but I suspect they figure if they don't pay the same attention to it as other companies, they're more likely to make very poor decisions that will severely injure their bottom line.
As per the MP being barely a blip, there's not a lot of R&D in it compared to other products, such as what they're still designing in-house (iPad for example). I also expect they would like to keep their customer base in this segment if at all possible, so they released an interim solution until a replacement product can be brought to market .
Given the direction I think this is going, it will rely heavily on TB (whether it's an AIO or headless xMac <or whatever you want to call it without a screen>). But such a product would no longer be a traditional workstation system.
This presumes that they were actually working on it. As opposed to some internal faction managed to mothball the product line while a "deathmatch" wrestling contest continued as to whether to EOL or not. I've seen that too. And externally, the 'death match" game results look alot like what this Mac Pro update looks like.
Foxconn would have done the hardware, leaving Apple with some firmware and software development.
The "deathmatch" concept is possible, but it seems like it's the result of changing directions to me rather than the indecisiveness that would result in the scenario you've mentioned. For me at least, the "deathmatch" scenarios usually resulted in two teams creating a prototype that was reviewed by management. Once they made their decision, it was usually pretty close to finished (i.e. replacement product v. upgrading on the existing Intel cycle, not just new CPUID's on the existing production models).