Part number / Feature code / Description (processor installed in a ComputeBook) / Memory bus speed (RAS /Performance)† / Supported quantities x3850 X6* / x3850 X6 models where used
Intel Xeon E7-4800 v2 processor family (not supported in the x3950 X6)
44X3961 A4B3 X6 Compute Book Intel Xeon E7-4809 v2 6C 1.9GHz 105W 1333 / 1066 MHz 2, 4 A4x
44X3966 A4B4 X6 Compute Book Intel Xeon E7-4820 v2 8C 2.0GHz 105W 1600 / 1066 MHz 2, 4 B1x
44X3971 A4B5 X6 Compute Book Intel Xeon E7-4830 v2 10C 2.2GHz 105W 1600 / 1066 MHz 2, 4 -
44X3976 A4B6 X6 Compute Book Intel Xeon E7-4850 v2 12C 2.3GHz 105W 1600 / 1066 MHz 2, 4 B3x
44X3981 A4B7 X6 Compute Book Intel Xeon E7-4860 v2 12C 2.6GHz 130W 1600 / 1333 MHz 2, 4 C1x
44X3986 A4B8 X6 Compute Book Intel Xeon E7-4870 v2 15C 2.3GHz 130W 1600 / 1333 MHz 2, 4 -
44X3991 A4B9 X6 Compute Book Intel Xeon E7-4880 v2 15C 2.5GHz 130W 1600 / 1333 MHz 2, 4 -
44X3996 A4BA X6 Compute Book Intel Xeon E7-4890 v2 15C 2.8GHz 155W 1600 / 1333 MHz 2, 4 C4x
Intel Xeon E7-8800 v2 processor family (also supported in the x3950 X6)
44X4001 A4BB X6 Compute Book Intel Xeon E7-8850 v2 12C 2.3GHz 105W 1600 / 1066 MHz 2, 4 -
44X4031 A4BH X6 Compute Book Intel Xeon E7-8857 v2 12C 3.0GHz 130W 1600 / 1333 MHz 2, 4 -
44X4011 A4BD X6 Compute Book Intel Xeon E7-8870 v2 15C 2.3GHz 130W 1600 / 1333 MHz 2, 4 -
44X4016 A4BE X6 Compute Book Intel Xeon E7-8880 v2 15C 2.5GHz 130W 1600 / 1333 MHz 2, 4 -
44X4036 A4BJ X6 Compute Book Intel Xeon E7-8880L v2 15C 2.2GHz 105W 1600 / 1333 MHz 2, 4 -
44X4021 A4BF X6 Compute Book Intel Xeon E7-8890 v2 15C 2.8GHz 155W 1600 / 1333 MHz 2, 4 -
44X4026 A4BG X6 Compute Book Intel Xeon E7-8891 v2 10C 3.2GHz 155W 1600 / 1333 MHz 2, 4 -
44X4006 A4BC X6 Compute Book Intel Xeon E7-8893 v2 6C 3.4GHz 155W 1600 / 1333 MHz 2, 4 -
† The processors support two memory modes, RAS mode (also known as lockstep mode) and Performance mode
(also known as independent mode). In Performance mode, the SMI2 link operates at twice the memory bus speed shown.
* A configuration of one processor is only supported in model 3837-A4x. No other server model or CTO configuration supports one processor.
