Xeon D-1581 vs E3-1240L v5

Primary details

Comparing Xeon E3-1240L v5 and Xeon D-1581 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1393	899
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.30	no data
Market segment	Server	Server
Series	Intel Xeon E3	Intel Xeon D
Power efficiency	15.52	12.17
Architecture codename	Skylake-DT (2015)	Broadwell (2015−2019)
Release date	19 October 2015 (9 years ago)	24 February 2016 (8 years ago)
Launch price (MSRP)	$278	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E3-1240L v5 and Xeon D-1581 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	4 (Quad-Core)	16 (Hexadeca-Core)
Threads	8	32
Base clock speed	2.1 GHz	1.8 GHz
Boost clock speed	3.2 GHz	2.4 GHz
Bus type	DMI 3.0	DMI 2.0
Bus rate	4 × 8 GT/s	no data
Multiplier	21	18
L1 cache	256 KB	1 MB
L2 cache	1 MB	4 MB
L3 cache	8 MB (shared)	24 MB
Chip lithography	14 nm	14 nm
Die size	122 mm2	306.18 mm2
Maximum case temperature (TCase)	no data	80 °C
Number of transistors	1,750 million	4700 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E3-1240L v5 and Xeon D-1581 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	1 (Uniprocessor)	1 (Uniprocessor)
Socket	FCLGA1151	FCBGA1667
Power consumption (TDP)	25 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1240L v5 and Xeon D-1581. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	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	+	+
GPIO	no data	+

Security technologies

Xeon E3-1240L v5 and Xeon D-1581 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1240L v5 and Xeon D-1581 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1240L v5 and Xeon D-1581. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1866/2133, DDR3L-1333/1600	DDR4, DDR3
Maximum memory size	64 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	34.134 GB/s	34.124 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Graphics image quality

Maximum display resolutions supported by Xeon E3-1240L v5 and Xeon D-1581 integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Xeon E3-1240L v5 and Xeon D-1581 integrated GPUs, sometimes API versions are included.

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

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1240L v5 and Xeon D-1581.

PCIe version	3.0	2.0/3.0
PCI Express lanes	16	24
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	6
Number of USB ports	no data	8
Integrated LAN	no data	+
UART	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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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	4.10	8.36
Recency	19 October 2015	24 February 2016
Physical cores	4	16
Threads	8	32
Power consumption (TDP)	25 Watt	65 Watt

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Should you still have questions on choice between Xeon E3-1240L v5 and Xeon D-1581, ask them in Comments section, and we shall answer.

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