AMD XP 2400+ Dual DDR Support?

By Uziel ยท 5 replies
Feb 1, 2005
  1. Hello,

    I recently upgraded my motherboard from a Gigabyte 7N400-EL to a Abit NF7-S2. The 7N400-EL doesnt support dual DDR, so I bought the Abit which does. Now, I get the same results in 3d Mark 2005, 2003 and Sisoft Sandra 2005. Now, my question is this: does the AMD XP 2400+ (266 FSB) support DUAL DDR? If not, please explain why I get the results?


    AMD XP 2400+
    Abit NF7-S2
    Transend 256mb DDR 400 x2
    Maxtor 80GB 8mb 7200 RPM
    Abit Silurio FX5200 128mb AGP8x
    Eagletech Alm Case + 300 Watt PSU
    Aopen DVD-Writer 16x
  2. Didou

    Didou Bowtie extraordinair! Posts: 4,274

    The 2400+ AthlonXP has a 133mhz FSB (266 DDR) which can use about half of the effective memory bandwidth made available by a DualChannel memory configuration. In other words, the AthlonXP can't really benefit from the extra memory bandwidth.
  3. Uziel

    Uziel TS Rookie Topic Starter

    Thanks. But, does the new Sempron's support or get better bandwidth than the Athlon XP's?
  4. Didou

    Didou Bowtie extraordinair! Posts: 4,274

    The Semprons (up to the 3000+) have more memory bandwidth then the AthlonXP you currently have since it uses a 166mhz FSB.

    On other hand, all the AthlonXPs based on the Barton core (512kb of L2 cache) had at least a 166mhz FSB & a 200mhz for the latest parts so yes & no. Easy answer, isn't it ? :p
  5. Justin

    Justin TS Rookie Posts: 942

    Even when using a Barton 3200+ (200mhz FSB, 2.2ghz CPU speed), in dual channel mode with low-latency ram, you're still not going to get a huge boost, and probably none noticeable at all outside of benchmarks. Don't expect a true "doubling" of maximum throughput. Expect more around 10%.
  6. Uziel

    Uziel TS Rookie Topic Starter

    Thanks, In South Africa we cant get the Sempron or Athlon XP 200 FSB CPU's.So, Have to save up for the 64Bit then.Looks quite fast.

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