24
IBM Power 750 and 760 Technical Overview and Introduction
Table 1-11 summarizes the maximum number of supported disk-only I/O drawers.
Table 1-11 Maximum number of disk only I/O drawers supported
1.8 Comparison between models
The Power 750 contains either one, two, three, or four 8-core 3.5 GHz or 8-core 4.0 GHz
DCMs within the system unit.
The Power 760 contains either one, two, three or four 0/12-core 3.1 GHz or 0/12-core
3.4 GHz DCMs within the system unit.
On both systems each processor core has access to 256 KB of L2 cache and 10 MB of L3
cache. Each processor on a DCM connects to eight DDR3 memory DIMM slots; a total of
16 DIMM slots per DCM. Each memory module is a 1066 MHz DIMM, and are delivered in
pairs. Memory features contain two memory DIMMs per feature code, with features ranging
from 8 GB to 64 GB per feature code.
Table 1-12 summarizes the processor core options and frequencies, and matches them to the
L3 cache sizes for the Power 750 and Power 760.
Table 1-12 Summary of processor core counts, core frequencies, and L3 cache sizes
Table 1-13 compares the Power 750 and Power 760 systems.
Table 1-13 Comparison between models
Server
Maximum FC EDR1
drawers
Maximum FC 5887
drawers
Maximum FC 5886
drawers
Power 750
2
51
27
Power 760
2
51
27
System
Cores per
DCM
Frequency
(GHz)
L3 cache
per DCM
a
a. The total L3 cache available on the DCM, maintaining 10 MB per processor core
System maximum
(cores)
Power 750
8
3.5
80 MB
32
Power 750
8
4.0
80 MB
32
Power 760
12
3.1
120 MB
48
Power 760
12
3.4
120 MB
48
Component
Power 750 (8408-E8D)
Power 760 (9109-RMD)
Minimum
Maximum
Minimum
Maximum
Allowable n-core systems
8-core, 16-core, 24-core, 32-core
12-core, 24-core, 36-core, 48-core
CUoD base processor
activations
All processors are activated
8 cores
48 cores
Orderable processor speeds
8-core DCM (2 x 4 core): 3.5 GHz
8-core DCM (2 x 4 core): 4.0 GHz
0/12-core DCM (2 x 6 core): 3.1 GHz
0/12-core DCM (2 x 6 core): 3.4 GHz
Processor planar - 4 module
per 8 memory risers, 5 VRM
1 x FC EPT1
1 x FC EPT1