Xeon E5-4627 v2 vs E5-4657L v2

Place in the ranking	972	1097
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	6.02	4.27
Release date	1 January 2014 (10 years ago)	1 January 2014 (10 years ago)

Detailed specifications

Xeon E5-4657L v2 and Xeon E5-4627 v2 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	12 (Dodeca-Core)	8 (Octa-Core)
Threads	24	8
Base clock speed	2.4 GHz	3.3 GHz
Boost clock speed	2.9 GHz	3.6 GHz
Bus rate	8 GT/s	7.2 GT/s
L3 cache	30 MB Intel® Smart Cache	16 MB Intel® Smart Cache
Chip lithography	22 nm	22 nm
Maximum core temperature	81 °C	88 °C
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-4657L v2 and Xeon E5-4627 v2 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	4	4
Socket	FCLGA2011	FCLGA2011
Power consumption (TDP)	115 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4657L v2 and Xeon E5-4627 v2. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® AVX
AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Demand Based Switching	+	+
PAE	46 Bit	46 Bit

Security technologies

Xeon E5-4657L v2 and Xeon E5-4627 v2 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-4657L v2 and Xeon E5-4627 v2 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-4657L v2 and Xeon E5-4627 v2. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866	DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866
Maximum memory size	768 GB	768 GB
Max memory channels	4	4
Maximum memory bandwidth	59.7 GB/s	59.7 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4657L v2 and Xeon E5-4627 v2.

PCIe version	3.0	3.0
PCI Express lanes	40	40

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon E5-4657L v2 7.59
+24.6%

Xeon E5-4627 v2 6.09

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Xeon E5-4657L v2 11613
+24.6%

Xeon E5-4627 v2 9320