IBM Power System S814 与Power720的参数对比：
从下面的参数的对比可以看出， IBM S814在P720的基础上做了升级，内存支持缓存，IO带宽也显著提高。
|
IBM Power 720 |
IBM Power System S814 |
|
|
Processor |
POWER7+ |
POWER8 |
|
Sockets |
1 |
1 |
|
Cores |
4 / 6 / 8 |
6 / 8 |
|
Maximum Memory |
512 @ 1066 MHz |
512 GB @ 1600 MHz |
|
Memory Cache |
No |
Yes |
|
Memory Bandwidth |
136 GB/sec |
192 GB/sec |
|
Memory DRAM Spare |
No |
Yes |
|
System unit PCIe slots |
6 PCIe Gen2 FH |
7 PCIe Gen3 FH |
|
CAPI (Capable slots) |
N / A |
One |
|
PCIe Hot Plug Support |
No |
Yes |
|
IO bandwidth |
40 GB/sec |
96 GB/sec |
|
Ethernet ports |
Quad 1 Gbt (x4 slot) |
Quad 1 Gbt (x8 Slot) |
|
SAS bays in system unit |
6 or 8 SFF-1 bays |
12 SFF-3 bays |
|
Integrated write cache |
Optional 175 MB |
Optional effectively 7GB |
|
Easy Tier Support |
No |
Yes |
|
Integrated split backplane |
Yes ( 3 + 3 ) |
Yes ( 6 + 6 ) |
|
Service Processor |
Generation 1 |
Generation 2 |