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PowerEdge 11th Generation Servers: R810, R910, and M910 Memory Guidance
Page 8
Good Performance
2 DIMMS per Memory Buffer Channel, all memory controllers populated equally with 32 DIMMs and 4
Memory Risers (R910), lower maximum bandwidth, higher latency
1 DIMM per Memory Buffer Channel, all memory controllers populated equally with 16 DIMMs and 4
Memory Risers (R910), lower maximum bandwidth, higher latency
Note: Mixed DIMM capacity is supported. The recommendation is to populate memory controllers
equally and always pair DIMMs identically.
Figure 4. R910 Relative Memory Bandwidth for the Intel Xeon 7500 Series Processors
Xeon X7560, 8C
2.26 GHz
6.40 QPI
1066 MTs
Xeon X7550, 8C
2.00 GHz
6.40 QPI
1066 MTs
Xeon E7540, 6C
2.00 GHz
6.40 QPI
1066 MTs
Xeon L7555, 8C
1.86 GHz
5.86 QPI
1066 MTs
Xeon L7545, 6C
1.86 GHz
5.86 QPI
978 MTs
Xeon E7530, 6C
1.86 GHz
5.86 QPI
978 MTs
Xeon E7520, 4C
1.86 GHz
4.80 QPI
800 MTs