E-300 vs Xeon E5-2666 V3

Primary details

Comparing Xeon E5-2666 V3 and E-300 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	756	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	no data	AMD E-Series
Architecture codename	Haswell-EP (2014)	Zacate (2011−2013)
Release date	13 November 2014 (9 years ago)	22 August 2011 (12 years ago)
Current price	$59	$200

Detailed specifications

Xeon E5-2666 V3 and E-300 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	10 (Deca-Core)	2 (Dual-core)
Threads	20	2
Base clock speed	2.9 GHz	no data
Boost clock speed	3.5 GHz	1.3 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	512K (per core)
L3 cache	25 MB (shared)	0 KB
Chip lithography	22 nm	40 nm
Die size	356 mm2	75 mm2
Number of transistors	2,600 million	no data
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2666 V3 and E-300 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	2	1
Socket	2011-3	FT1
Power consumption (TDP)	135 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2666 V3 and E-300. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	DDR3-1066 RAM (sin. chan.), PCIe 2 [?], MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SVM
AES-NI	+	no data
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
TSX	+	no data

Security technologies

Xeon E5-2666 V3 and E-300 technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and E-300 are enumerated here.

AMD-V	no data	+
VT-d	+	no data
VT-x	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and E-300. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3, DDR42133 MHz Quad-channel

DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon HD 6310

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2666 V3 and E-300.

PCIe version	3.0	no data
PCI Express lanes	40	no data

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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Pros & cons summary

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Recency	13 November 2014	22 August 2011
Physical cores	10	2
Threads	20	2
Chip lithography	22 nm	40 nm
Power consumption (TDP)	135 Watt	18 Watt

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Should you still have questions on choice between Xeon E5-2666 V3 and E-300, ask them in Comments section, and we shall answer.

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