IBM Power 720 User Manual

Chapter 2. Architecture and technical overview 59
Figure 2-14 Memory DIMM installation sequence for two processors with four riser cards
2.3.3 Memory bandwidth
The POWER7+ processor has exceptional cache, memory, and interconnect bandwidths.
Table 2-7 shows the maximum bandwidth estimates for the Power 720 and Power 740
systems.
Table 2-7 Power 720 and Power 740 processor and memory bandwidth estimates
POWER7+
P1-C10
Pair 5
Pair 13
Pair 5
Pair 13
Pair 9
Pair 1
Pair 9
Pair 1
Memory Card #2  P1-C17
Pair 7
Pair 15
Pair 7
Pair 15
Pair 11
Pair 3
Pair 11
Pair 3
POWER7+
P1-C11
P1-C17-C1
P1-C17-C2
P1-C17-C3
P1-C17-C4
P1-C17-C7
P1-C17-C8
P1-C17-C9
P1-C17-C10
Memory Card #1  P1-C18
P1-C18-C1
P1-C18-C2
P1-C18-C3
P1-C18-C4
P1-C18-C7
P1-C18-C8
P1-C18-C9
P1-C18-C10
Pair 6
Pair 14
Pair 6
Pair 14
Pair 10
Pair 2
Pair 10
Pair 2
Memory Card #4  P1-C15
Pair 8
Pair 16
Pair 8
Pair 16
Pair 12
Pair 4
Pair 12
Pair 4
P1-C15-C1
P1-C15-C2
P1-C15-C3
P1-C1-C4
P1-C15-C7
P1-C15-C8
P1-C15-C9
P1-C15-C10
Memory Card #3  P1-C16
P1-C16-C1
P1-C16-C2
P1-C16-C3
P1-C16-C4
P1-C16-C7
P1-C16-C8
P1-C16-C9
P1-C16-C10
Memory Power 720 Power 740
3.612 GHz processor card 4.284 GHz processor card
L1 (data) cache 173.376 GBps 205.632 GBps
L2 cache 173.376 GBps 205.632 GBps
L3 cache 115.584 GBps 137.088 GBps
System memory 68.224 GBps 68.224 GBps (one socket)
136.448 GBps (dual sockets)

IBM Power 720 Specifications

General

Brand	IBM
Model	Power 720
Category	Server
Language	English