G
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I was just over @ acesharware and they posted some pretty interesting numbers on single channel DRDRAM. The tests were done on a p4 system, running sandra 2001. Basically with only a single channel DRDRAM the p4's performance numbers were halved.
........Dual Single
Fpu 1431 700
cpu 1381 650
The dual channel has a bandwith limit of 3.2GB/S vers. the single channels 1.6 GB/S.
My point to all this info is :
1) p4 archtecture was designed for and really needs DRDRAM to perform as designed
2) DDR pc2100 has .5GB/s advantage over single channel RDRAM
3) Rambus/Intels failure to move DRDRAM into mainstream means 2001 intel must start using DDR RAM for p4.
4) performance of p4 may be even more poor than it is now because it must use a memory technology that has bandwidth similiar to single channel DRDRAM.
So as DRDRAM becomes a faint memory in 2H 2001 for mainstream computers. We might see that intels adoption of DDR will handicap the P4.(even with new sse 2 optimized software)
What a delemma for the poor folks @ intel.
OH! ya thanks to aceshardware.
"in the end it's all about holding your breath"
........Dual Single
Fpu 1431 700
cpu 1381 650
The dual channel has a bandwith limit of 3.2GB/S vers. the single channels 1.6 GB/S.
My point to all this info is :
1) p4 archtecture was designed for and really needs DRDRAM to perform as designed
2) DDR pc2100 has .5GB/s advantage over single channel RDRAM
3) Rambus/Intels failure to move DRDRAM into mainstream means 2001 intel must start using DDR RAM for p4.
4) performance of p4 may be even more poor than it is now because it must use a memory technology that has bandwidth similiar to single channel DRDRAM.
So as DRDRAM becomes a faint memory in 2H 2001 for mainstream computers. We might see that intels adoption of DDR will handicap the P4.(even with new sse 2 optimized software)
What a delemma for the poor folks @ intel.
OH! ya thanks to aceshardware.
"in the end it's all about holding your breath"