Xeon E5-1660 vs E5-2660 v2

General info

Comparing Xeon E5-2660 v2 and Xeon E5-1660 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	921	1065
Place by popularity	not in top-100	not in top-100
Value for money	1.71	4.21
Market segment	Server	Server
Architecture codename	Ivy Bridge-EP (2013)	Sandy Bridge-E (2011−2013)
Release date	1 September 2013 (10 years old)	March 2012 (12 years old)
Launch price (MSRP)	$850	$290
Current price	$95 (0.1x MSRP)	$578 (2x MSRP)

Value for money

Performance per price, higher is better.

Xeon E5-1660 has 146% better value for money than Xeon E5-2660 v2.

Technical specs

Xeon E5-2660 v2 and Xeon E5-1660 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)	6 (Hexa-Core)
Threads	20	12
Base clock speed	2.2 GHz	3.3 GHz
Boost clock speed	3 GHz	3.9 GHz
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	25 MB (shared)	15360 KB (shared)
Chip lithography	22 nm	32 nm
Die size	160 mm2	435 mm2
Maximum core temperature	75 °C	64 °C
Number of transistors	1,400 million	2270 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2660 v2 and Xeon E5-1660 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	FCLGA2011
Power consumption (TDP)	95 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2660 v2 and Xeon E5-1660. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2660 v2 and Xeon E5-1660 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2660 v2 and Xeon E5-1660 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2660 v2 and Xeon E5-1660. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	768 GB	256 GB
Max memory channels	4	4
Maximum memory bandwidth	59.7 GB/s	51.2 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2660 v2 and Xeon E5-1660.

PCIe version	3.0	3.0
PCI Express lanes	40	40

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 v2 outperforms E5-1660 by 25% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	6.82	5.44
Physical cores	10	6
Threads	20	12
Cost	$850	$290
Chip lithography	22 nm	32 nm
Power consumption (TDP)	95 Watt	130 Watt

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Should you still have questions on choice between Xeon E5-2660 v2 and Xeon E5-1660, ask them in Comments section, and we shall answer.

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