ARMAS 168pin SDRAM MODULE

　

Bandwidth Comparison between RDRAM & SDR/DDR SDRAM

DRAM Type	Clock Rate	Data Rate	Bus Width	Memory Bandwith
RDRAM	400M HZ	800M HZ	16 bits (1 channel)	1.6GB/s
RDRAM	400M HZ	800M HZ	32 bits (2 channel)	13.2GB/s
RDRAM	400M HZ	800M HZ	64 bits (4 channel)	6.4GB/s
PC-100 SDRAM	100M HZ	100M HZ	64 bits	800MB/s
PC-133 SDRAM	133M HZ	133M HZ	64 bits	1064MB/s
PC-200 SDRAM	100M HZ	200M HZ	64 bits	1.6GB/s
PC-266 SDRAM	133M HZ	266M HZ	64 bits	2128MB/s

　

Granularity Comparison between RDRAM & SDRAM

DRAM TYPE	Bus Width	64MB		128Mb		256Mb		512Mb		1GMb
DRAM TYPE	Bus Width	Min. ICs	Min. Capacity	Min. ICs	Min. Capacity	Min. ICs	Min. Capacity	Min. ICs	Min. Capacity	Min. ICs	Min. Capacity
RDRAM	16 bits (1 channel)	1	8MB	1	16MB	1	32MB	1	64MB	1	128MB
RDRAM	32 bits (2 channel)	2	16MB	2	32MB	2	64MB	2	128MB	2	256MB
RDRAM	64 bits (4 channel)	4	32MB	4	64MB	4	128MB	4	256MB	4	512MB
SDR/DDR SDRAMx16	64 bits	4	32MB	4	64MB	4	128MB	4	256MB	4	512MB
SDR/DDR SDRAMx8	64 bits	8	64MB	8	128MB	8	256MB	8	512MB	8	1GB
SDR/DDR SDRAMx4	64 bits	16	128MB	16	256MB	16	512MB	16	1GB	16	2GB

　

　

　

　

　

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