29
M
M
X
X
3
3
6
6
C
C
E
E
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
D
D
D
D
R
R
2
2
6
6
6
6
(
(
P
P
C
C
2
2
1
1
0
0
0
0
)
)
S
S
u
u
p
p
p
p
o
o
r
r
t
t
e
e
d
d
DDRAM utilizes the existing SDRAM infrastructure and technology while doubling the nominal bandwidth available to systems.
To put it in a simple way, DDRAM is like data going along a two lane highway, while at the same time data in traditional SDRAM
go along a one way street. Therefore, it is a more advanced technology that provides a great overall improvement in system
performance. DDR266 (PC2100) runs two times faster than the traditional PC133 SDRAM with the speed of Front Side Bus
(FSB) up to 266MHz. (2x133=266). PC2100 is a new naming standard for speed of DDR 266, representing their theoretical
speeds of the RAM. The theoretical transfer rate of DDR 266 (PC2100) is 2.1GB/s.
