Summary: IRAM and SmartSIMM: Overcoming the I/O Bus Bottleneck 9
Quantity
1997 Retail
Price
IRAM­I/
SmartSIMM­I (256
Mbit DRAM)
IRAM­II/
SmartSIMM­II (1
Gbit DRAM)
Memory Cost / MB (from SIMM) ($) $11 $6 $3
DRAM Chip Cost ($) [4] $88 $200 $360
Estimated Minimum IRAM Cost (2X DRAM) $176 $405 $715
Estimated Maximum IRAM Cost (3X DRAM) $264 $610 $1070
SmartSIMM Crossbar N/A $80 $60
Disk Cost / MB ($) $0.27 $0.10 $0.02
Total Disk Cost ($) [4] $600 $550 $490
8­Disk Enclosure [19] $1900 $1700 $1500
TABLE 5. Estimated Costs for SmartSIMM System Components


Source: Arpaci-Dusseau, Remzi - Department of Computer Sciences, Department of Computer Sciences, University of Wisconsin at Madison

Collections: Computer Technologies and Information Sciences