AMD XP 2400+ Dual DDR Support?

[Uziel]

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?


Thanks

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

 

[Didou]

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.

 

[Uziel]

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

 

[Didou]

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 ?

 

[Justin]

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%.

 

[Uziel]

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.

Thanks