Xeon E3-1585L v5 vs E5-2660

General info

Comparing Xeon E5-2660 and Xeon E3-1585L v5 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1085	1094
Place by popularity	not in top-100	not in top-100
Value for money	6.78	2.82
Market segment	Server	Server
Series	no data	Intel Xeon E3
Architecture codename	Sandy Bridge-EP (2012)	Skylake (2015−2016)
Release date	6 March 2012 (12 years old)	31 May 2016 (7 years old)
Launch price (MSRP)	$85	$445
Current price	$31 (0.4x MSRP)	$282 (0.6x MSRP)

Value for money

Performance per price, higher is better.

Xeon E5-2660 has 140% better value for money than Xeon E3-1585L v5.

Technical specs

Xeon E5-2660 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	8 (Octa-Core)	4 (Quad-Core)
Threads	16	8
Base clock speed	2.2 GHz	3 GHz
Boost clock speed	3 GHz	3.7 GHz
Bus support	no data	4 × 8 GT/s
L1 cache	64 KB (per core)	256 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	20480 KB (shared)	8 MB
Chip lithography	32 nm	14 nm
Die size	435 mm2	no data
Maximum core temperature	73 °C	100 °C
Number of transistors	2,270 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2660 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	1
Socket	FCLGA2011	FCBGA1440
Power consumption (TDP)	95 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2660 and Xeon E3-1585L 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)	+	+
eDRAM	no data	128 MB
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	+	+
Thermal Monitoring	+	no data
Flex Memory Access	-	no data
Demand Based Switching	+	no data
FDI	no data	+
Status	Discontinued	Discontinued

Security technologies

Xeon E5-2660 and Xeon E3-1585L v5 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Identity Protection	-	no data
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2660 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 E5-2660 and Xeon E3-1585L v5. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	LPDDR3-1600, DDR4-2133
Maximum memory size	384 GB	64 GB
Max memory channels	4	2
Maximum memory bandwidth	51.2 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	no data	+
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 E5-2660 and Xeon E3-1585L v5 integrated GPUs.

Number of displays supported

no data

3

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2660 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.

E5-2660 outperforms E3-1585L v5 by 1% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	5.28	5.23
Recency	6 March 2012	31 May 2016
Physical cores	8	4
Threads	16	8
Cost	$85	$445
Chip lithography	32 nm	14 nm
Power consumption (TDP)	95 Watt	45 Watt

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Should you still have questions on choice between Xeon E5-2660 and Xeon E3-1585L v5, ask them in Comments section, and we shall answer.

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