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To: unclewest who wrote (36755)1/26/2000 9:21:00 PM
From: Roads End  Read Replies (1) | Respond to of 93625
 
Unclebutthead is back:
Uncle, "At ease"!!
Steve



To: unclewest who wrote (36755)1/27/2000 12:07:00 AM
From: Fiscally Conservative  Respond to of 93625
 
UncleWest:
Maybe this will help.

Conventional memory systems that use FPM/EDO or SDRAM are known as wide channel systems. They have memory channels as wide as the processor's data bus,which for the Pentium and up is 64 bits. The DIMM (Dual Inline Memory Module)is a 64-bit wide device,meaning data can be transferred to its64 bits (or 8 bytes) at a time. The fastest DIMMs are the SDRAM type,which run at 100mhz,meaning the overall throughput is 100 x 8,or 800Mbytes/sec. Most SDRAM controllers (built into the motherbaord chipset North Bride componet)can handle only a single channel of memory with up to three or four banks total.
RDRAMs,on the other hand,are a narrow channel device. They transfer data only 16 bits (2 bytes) at a time (plus 2 optional parity bits),but at much faster speeds. They normally run 800MHz,(700 and 600...forget about that for now)meaning the overall throughput is 800 x 2,or 1.6GB per second,twice that of SDRAM. Also,there is far less latency between transfers because they all run synchronously in a looped system and in only one direction,meaning that the actual overall throughput of an RDRAM bus is nearly triple that of standard 100MHz SDRAM. FOR FURTHER INCREASES IN SPEED,IT IS POSSIBLE TO USE TWO OR FOUR RDRAM CHANNELS SIMULTANEOUSLY,INCREASING MEMORY THROUGHPUT TO 3.2GB/SEC OR 6.4GB/SEC IF NECESSARY.

my source:Scott Mueller's,UPGRADING and REPAIRING PCs.
I hope this helps. I hope I am not making a fool of myself either. All the Best.