1. Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Gulftown Seamlessly Compatible with X58 Chipset Platform

Discussion in 'News' started by btarunr, Aug 7, 2009.

  1. entropy13

    entropy13

    Joined:
    Mar 2, 2009
    Messages:
    4,867 (2.60/day)
    Thanks Received:
    1,169
    So basically when I upgraded from a Pentium 4 560 (Prescott) to a Core i7 920 I just "modernized" more or less? :laugh:
  2. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    No, architecturally, it has nothing to do with P4. The only thing they have in common is Hyper Threading, but Nehalem's version is actually completely different in operation, and some code names. Nehalem is still based heavily on Core 2, which gets its roots from P3. Reviving the idea of an interconnect like "CSI", or the use of multiple threads from a single core, does not make it related to netburst. It just means the engineering department recycled some terms.

    We wouldn't be seeing the IPC we are if it's roots were in netburst. Even with HTT disabled, it's IPC is higher then all other current x86 chips out. Netburst failed miserably at ipc, due to it's retarded long and narrow pipelines that favored clock speed over ipc whick took forever to flush in case of a cache miss or prediction error (which was what made it the netburst architecture.) Nehalem does not have long and narrow pipes. Even with todays much improved branch prediction, netburst still couldn't be made this efficient.

    And it does not suck at gaming. Where in the hell do you get that conclusion? Just because it doesn't benefit gaming, doesn't mean it sucks at it. Almost all games on the market are gpu limited. The cpu makes no difference to gameplay (within reason, of course).
  3. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    Pretty much--from a broken Netburst to a properly functioning Netburst. ;)



    Netburst had serious leakage and cache miss issues. Nehalem has the leakage and caching issues fixed.

    Penryn has 14 stages. Early Netburst processors have 20 stages. Later Netburst processors (Prescott) have 32 stages. Guesstimates put Nehalem at somewhere between 20 and 24 stages.

    The SMT capabilties of Netburst were strapped on after they realized how much of the processor sat idle. Nehalem was designed knowing SMT was going to be included so it is a much better implementation.

    Nehalem is effectively Netburst done right. Remember, Intel spent over 7 years trying to fix Netburst and never really succeeded.


    At low resolutions where the CPU is the most important, Nehalem does better. The higher the resolution, the worse Nehalem does compared to Core 2 and Phenom II. I've never found an explaination for this--perhaps a shortcoming of QPI.
    Crunching for Team TPU
  4. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    Again, having similarities to netburst, does not make it a derivative of netburst.

    And all the tests I've seen show i7 slightly ahead at higher resolutions in most games, with only a couple of exceptions. Even tho i7 pulls ahead slightly, it makes no real difference anyway, as the playability remains the same between all the chips at high res gaming. Thus, no modern chips actually "suck" at gaming.
  5. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    Does having a child look like you not make it your child? Unfortunately, processors don't have DNA to test.
    Crunching for Team TPU
  6. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    My nephew looks like me, but is not my child.
  7. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    You and him are both humans making you 99.900% alike, genetically. Considering heredity, you are no less than 99.925% alike.

    Shall we stick a percentage on how alike Pentium 3, Pentium 4, Core 2, and Core i7 are? It might be fun. :D
    Last edited: Aug 11, 2009
    Crunching for Team TPU
  8. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    Go right ahead.
  9. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    But...what definies the architecture? SMT for sure does. I'd argue that SSE doesn't because such technologies can be integrated into pretty much any x86 architecture. x86-64 does...

    Maybe MCM... but multi-core really isn't an architectural feature.
    Crunching for Team TPU
  10. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    SMT doesn't define it, if it's designed in a completely different manner than the original SMT. Only the concept itself remains, not the design.
  11. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    So, then, what does? XD

    I'm down to just x86-64/x86 now. :(
    Crunching for Team TPU
  12. Wile E

    Wile E Power User

    Joined:
    Oct 1, 2006
    Messages:
    24,324 (8.83/day)
    Thanks Received:
    3,776
    That's what I mean. There's nothing to link it directly to netburst, aside from a longer pipe than Core2. Likely, it's a derivative of both.
  13. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

    Joined:
    Oct 13, 2008
    Messages:
    12,958 (6.44/day)
    Thanks Received:
    3,074
    Location:
    IA, USA
    It is my belief that it borrows more from Netburst than it does from P6. At the same time, I think they may have started with a clean slate and aimed for what the original Nehalem had promised (high clock speeds, SMT, and CSI).
    Crunching for Team TPU
  14. Hayder_Master

    Hayder_Master

    Joined:
    Apr 21, 2008
    Messages:
    5,159 (2.36/day)
    Thanks Received:
    637
    Location:
    IRAQ-Baghdad
    so X58 still around more than other mobo's

Currently Active Users Viewing This Thread: 1 (0 members and 1 guest)

Share This Page