Xeon E5-2678 v3 vs E5-4667 v3

Primary Details

Comparing Xeon E5-4667 v3 and Xeon E5-2678 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	699	729
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	13.12	6.87
Market segment	Server	Server
Series	no data	Xeon
Architecture codename	Haswell-EP (2014)	Haswell (2013−2015)
Release date	1 June 2015 (8 years ago)	2015 (9 years ago)
Current price	$199	$148

Cost-Effectiveness Evaluation

Performance per price, higher is better.

Xeon E5-4667 v3 has 91% better value for money than Xeon E5-2678 v3.

Detailed Specifications

Xeon E5-4667 v3 and Xeon E5-2678 v3 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	16 (Hexadeca-Core)	12 (Dodeca-Core)
Threads	32	24
Base clock speed	2 GHz	2.5 GHz
Boost clock speed	2.9 GHz	3.3 GHz
L1 cache	64K (per core)	384 KB
L2 cache	256K (per core)	3072 KB
L3 cache	40 MB (shared)	30 MB
Chip lithography	22 nm	22 nm
Die size	356 mm2	356 mm2
Maximum core temperature	88 °C	no data
Maximum case temperature (TCase)	88 °C	84 °C
Number of transistors	2,600 million	5,560 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-4667 v3 and Xeon E5-2678 v3 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	2
Socket	FCLGA2011	LGA2011-3
Power consumption (TDP)	135 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4667 v3 and Xeon E5-2678 v3. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	-	no data
PAE	46 Bit	no data
Instruction Replay	-	no data
Status	Discontinued	no data

Security technologies

Xeon E5-4667 v3 and Xeon E5-2678 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-4667 v3 and Xeon E5-2678 v3 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-4667 v3 and Xeon E5-2678 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3, DDR4
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data
ECC memory support	+	no data

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4667 v3 and Xeon E5-2678 v3.

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.

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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.

E5-4667 v3 outperforms E5-2678 v3 by 5% based on our aggregated benchmark results.

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Pros & Cons Summary

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Performance score	9.96	9.51
Physical cores	16	12
Threads	32	24
Power consumption (TDP)	135 Watt	120 Watt

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Should you still have questions on choice between Xeon E5-4667 v3 and Xeon E5-2678 v3, ask them in Comments section, and we shall answer.

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