Xeon E3-1585L v5 vs E5-2640 v4

Primary details

Comparing Xeon E5-2640 v4 and Xeon E3-1585L v5 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	955	1227
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.76	2.32
Market segment	Server	Server
Series	Intel Xeon E5	Intel Xeon E3
Power efficiency	8.28	10.53
Architecture codename	Broadwell (2015−2019)	Skylake-H (2015−2016)
Release date	20 June 2016 (8 years ago)	31 May 2016 (8 years ago)
Launch price (MSRP)	$939	$445

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5-2640 v4 has 19% better value for money than Xeon E3-1585L v5.

Detailed specifications

Xeon E5-2640 v4 and Xeon E3-1585L 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	10 (Deca-Core)	4 (Quad-Core)
Threads	20	8
Base clock speed	2.4 GHz	3 GHz
Boost clock speed	3.4 GHz	3.7 GHz
Bus type	QPI	DMI 3.0
Bus rate	2 × 8 GT/s	4 × 8 GT/s
Multiplier	24	30
L1 cache	no data	64 KB (per core)
L2 cache	2.5 MB	256 KB (per core)
L3 cache	25 MB	8 MB (shared)
Chip lithography	14 nm	14 nm
Die size	246.24 mm2	171 mm2
Maximum core temperature	76 °C	100 °C
Number of transistors	3200 Million	2,300 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E5-2640 v4 and Xeon E3-1585L 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 (Multiprocessor)	1 (Uniprocessor)
Socket	FCLGA2011	FCBGA1440
Power consumption (TDP)	90 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2640 v4 and Xeon E3-1585L v5. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
eDRAM	no data	128 MB
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
FDI	no data	+

Security technologies

Xeon E5-2640 v4 and Xeon E3-1585L v5 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2640 v4 and Xeon E3-1585L v5 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2640 v4 and Xeon E3-1585L v5. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133	DDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2V
Maximum memory size	1.5 TB	64 GB
Max memory channels	4	2
Maximum memory bandwidth	68.3 GB/s	34.134 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel Iris Pro Graphics P580
Max video memory	no data	64 GB
Quick Sync Video	-	+
Clear Video	no data	+
Graphics max frequency	no data	1.15 GHz
Execution Units	no data	72

Graphics interfaces

Available interfaces and connections of Xeon E5-2640 v4 and Xeon E3-1585L v5 integrated GPUs.

Number of displays supported

no data

3

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2640 v4 and Xeon E3-1585L 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	7.88	5.01
Physical cores	10	4
Threads	20	8
Power consumption (TDP)	90 Watt	45 Watt

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Should you still have questions on choice between Xeon E5-2640 v4 and Xeon E3-1585L v5, ask them in Comments section, and we shall answer.

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