Final Words

We can't wait to get our hands on a board. Now that NVIDIA has announced this type of scaling I/O with HyperTransport connections, we wonder why we haven't been pushing it all along. It seems rather obvious in hindsight that using the extra HT connections processors would be advantageous and relatively simple in an Opteron environment. This is especially true when all the core logic fits on a single chip. Kudos to NVIDIA for bringing the 2200 and 2050 combination to market.

Though much of the nForce Professional series is very similar to the nForce 4, NVIDIA has likely made good use of those two million extra transistors. Though, we can't be exactly sure what went in there - it's likely the TCP/IP offload Engine, and possibly some server level error reporting routines. But for this, nForce Pro is exactly the same as the nForce 4.

The creativity that the nForce Pro 2050 MCP will offer vendors is unfathomable. We've already seen what everyone has tried with the NF4 Ultra and SLI chipsets, and now that we have something made for scalability and multiple configurations, we are sure to see some ingenious designs spring forth.

NVIDIA mentioned that many of their partners wanted a launch in December. NVIDIA also told us that IWill and Tyan are already shipping boards, but we aren't sure how widespread availability is yet. We will have to speak with IWill and Tyan about these matters. As far as we are concerned, the faster that NVIDIA can get nForce Professional out the door, the better.

The last thing to look at is how the new NVIDIA solution compares to its competition from Intel. Well, here's a handy comparison chart for those who wish to know what they can get in terms of I/O from NVIDIA and from Intel on their server and workstation boards.


 Server/Worstation Platform Comparison
   NVIDIA nForce Pro (single)  NVIDIA nForce Pro (quad)  Intel E7525/E7520
PCI Express Lanes 20 Lanes 80 lanes 24
SATA 4 SATA II 16 SATA II 2 SATA 1.0
Gigabit Ethernet MAC 1 4 1
USB 2.0 10 10 4
PCI-X Support No No Yes
DDR/DDR2 DDR DDR DDR2

Opteron boards with NFPro can have PCI-X support when combined with the proper AMD-8000 series chips, but NVIDIA didn't build in PCI-X support. It's obvious how well beyond Lindenhurst and Tumwater (E7520 and E7525) that the nForce Pro will scale with dual and quad Opteron solutions. Even in a single MCP configuration, NVIDIA has a lot of flexibility with its configurable PCI Express controller. Intel's solutions are locked into either 1 x16 slot + 1 x8 (E7525) or 3 x8 (E7520). The x8 connections to the MCH can run 2 physical devices instead (up to 2 x4). Also, if the motherboard vendor includes Intel's additional PCI hub for more PCI-X slots, either 4 or 8 of those PCI Express lanes go away.

Unfortunately, there isn't a whole lot more that we can say until we get our hands on it for testing. Professional series products can take longer to get into our lab, so it may be some time before we can get a review out, but we will try our best to get product as soon as possible. Of course, boards will cost a lot, and the more exciting the board, the less affordable it will be. But that won't stop us from reviewing them. On paper, this is definitely one of the most intriguing advancements that we've seen in AMD-centered core logic, and could be one of the best things ever to happen to high end AMD servers.

On the workstation side, we are very interested in testing a full 2 x16 PCI Express SLI setup, as well as the multiple display possibilities of such a system. It's an exciting time for the AMD workstation market, and we're really looking forward to getting our hands on systems.


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  • Googer - Tuesday, January 25, 2005 - link

    From what I have gathered, TCQ and NCQ are similar but not the exact same thing. Kind of like SCSI and IDE HDD's are similar but not the same.
  • tumbleweed - Monday, January 24, 2005 - link

    I've read before that NCQ as implemented by SATA is equivalent to the 'simple mode' of SCSI's TCQ, rather than being the same thing.
  • DerekWilson - Monday, January 24, 2005 - link

    #30:

    you cannot run 32-bit 33mhz cards at 66mhz ... There are 32-bit pci cards that can be dropped into 64bit 33mhz PCI slots. Not 64bit/66Mhz, and not PCI-X.
  • DerekWilson - Monday, January 24, 2005 - link

    In using two seperate displays, 2 x2 PCIe connections is fine for two graphics cards. The system can't saturate graphics cards.

    The fact that NVIDIA uses both over the top and PCIe to send data for SLI means that bandwidth does impact SLI to a point. We haven't yet seen the impact of two x16 SLI slots, but the article I linked to about NF4 Ultra modding that Wes wrote shows that x16 + x2 and x8 + x8 are close, but there is a difference.

    We'll be sure to test as much as we can -- hopefully someone will stick in PCIe lane configuration controlls in their BIOS.
  • Googer - Monday, January 24, 2005 - link

    #31 TCQ has been a feature of Hitachi/IBM PATA for many years now since the 120gxp and the only controller that supports PATA tcq is Pacific Digital's "Discstaq" ATA 100 controller with propietary cables.
  • Googer - Monday, January 24, 2005 - link

    #26 sound storm lives! Chaintech nFORCE4

    http://www.newegg.com/app/ViewProductDesc.asp?desc...
  • Googer - Monday, January 24, 2005 - link

    #12 Why wouldn't you want PCI-x for your existing pci cards, since it can run legacy 32-bit pci in 66mhz instead of 33mhz you are doubbleing your bandwith. It is something (pci-x) I am looking for on my next motherboard along with x16 and an x4 pci-e slot for skt 939.

    Here is an ananadtech article on the motherboard you
    were referring to.
    http://www.anandtech.com/news/shownews.aspx?i=2370...
  • Jeff7181 - Monday, January 24, 2005 - link

    Jesus... 2 16X PCI Express slots... that's nutty! Yay to AMD and nVidia for building in more parallelism!
  • Dubb - Monday, January 24, 2005 - link

    Kris: x2 is sufficient? I thought things started to drop off around x4...coulda sworn I saw that somewhere.

    I have a question though, does the scenario change if you're running separate cards as opposed to SLI? If I had the funds, I'd be looking to power a couple 9MP displays (or a 9 MP + 30" cinema) off separate 3400s or 4400s

    I'm pretty sure the 2895 (K8WE) was confirmed 16 + 16... their website claims "two x16 slots...with x16 signals"

    If I was actually looking to buy though, I'd be looking to the tyan regardless - I like the layout and features better.
  • KristopherKubicki - Monday, January 24, 2005 - link

    Dubb: I do not even believe that the Tyan is a "true" dual 16 lane configuration, but I sent them an email waiting a response.

    Of course - to be honest - it doesnt matter. two, two lane solutions are enough for modern SLI to scrape by - dual x4 or dual x8 are more than enough bandwidth for symmetric vector processing. I have a feeling full saturation of 16 lane PCIe, particularly for graphics, is a long way away.

    Kristopher

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