Xeon E3-1240 v5 vs E5-2643 v2

Primary details

Comparing Xeon E5-2643 v2 and Xeon E3-1240 v5 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1119	1189
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.60	3.75
Market segment	Server	Server
Series	no data	Intel Xeon E3
Power efficiency	4.21	6.15
Architecture codename	Ivy Bridge-EP (2013)	Skylake-DT (2015)
Release date	1 September 2013 (11 years ago)	19 October 2015 (9 years ago)
Launch price (MSRP)	$2,200	$282

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1240 v5 has 525% better value for money than Xeon E5-2643 v2.

Detailed specifications

Xeon E5-2643 v2 and Xeon E3-1240 v5 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	6 (Hexa-Core)	4 (Quad-Core)
Threads	12	8
Base clock speed	3.5 GHz	3.5 GHz
Boost clock speed	3.8 GHz	3.9 GHz
Bus type	no data	DMI 3.0
Bus rate	8 GT/s	4 × 8 GT/s
Multiplier	no data	35
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	15 MB (shared)	8 MB (shared)
Chip lithography	22 nm	14 nm
Die size	160 mm2	122 mm2
Maximum core temperature	74 °C	no data
Number of transistors	1,400 million	1,750 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2643 v2 and Xeon E3-1240 v5 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 (Uniprocessor)
Socket	FCLGA2011	FCLGA1151,FCLGA2011
Power consumption (TDP)	130 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2643 v2 and Xeon E3-1240 v5. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data

Security technologies

Xeon E5-2643 v2 and Xeon E3-1240 v5 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	-	+
SGX	no data	Yes with both Intel® SPS and Intel® ME
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2643 v2 and Xeon E3-1240 v5 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2643 v2 and Xeon E3-1240 v5. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-1866/2133, DDR3L-1333/1600
Maximum memory size	768 GB	64 GB
Max memory channels	4	2
Maximum memory bandwidth	59.7 GB/s	34.134 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Graphics image quality

Maximum display resolutions supported by Xeon E5-2643 v2 and Xeon E3-1240 v5 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	N/A
Max resolution over eDP	no data	N/A
Max resolution over DisplayPort	no data	N/A
Max resolution over VGA	no data	N/A

Graphics API support

APIs supported by Xeon E5-2643 v2 and Xeon E3-1240 v5 integrated GPUs, sometimes API versions are included.

DirectX	no data	N/A
OpenGL	no data	N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2643 v2 and Xeon E3-1240 v5.

PCIe version	3.0	3.0
PCI Express lanes	40	16

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.

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Pros & cons summary

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Performance score	5.78	5.20
Recency	1 September 2013	19 October 2015
Physical cores	6	4
Threads	12	8
Chip lithography	22 nm	14 nm
Power consumption (TDP)	130 Watt	80 Watt

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Should you still have questions on choice between Xeon E5-2643 v2 and Xeon E3-1240 v5, ask them in Comments section, and we shall answer.

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