Xeon E-2456 vs E5-1660 v2

Primary details

Comparing Xeon E5-1660 v2 and Xeon E-2456 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1045	470
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.92	93.12
Market segment	Server	Server
Power efficiency	4.70	17.69
Architecture codename	Ivy Bridge-E (2013)	Raptor Lake-S (2023−2024)
Release date	1 September 2013 (11 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$1,809	$375

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2456 has 10022% better value for money than Xeon E5-1660 v2.

Detailed specifications

Xeon E5-1660 v2 and Xeon E-2456 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)	6 (Hexa-Core)
Threads	12	12
Base clock speed	3.7 GHz	3.3 GHz
Boost clock speed	4 GHz	5.1 GHz
Bus rate	0 GT/s	16 GT/s
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	256 KB (per core)	1.25 MB (per core)
L3 cache	15 MB (shared)	18 MB (shared)
Chip lithography	22 nm	Intel 7 nm
Die size	160 mm2	163 mm2
Maximum core temperature	70 °C	100 °C
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E5-1660 v2 and Xeon E-2456 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	1
Socket	FCLGA2011	FCLGA1700
Power consumption (TDP)	130 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-1660 v2 and Xeon E-2456. 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	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	2
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	no data	-

Security technologies

Xeon E5-1660 v2 and Xeon E-2456 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-1660 v2 and Xeon E-2456 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-1660 v2 and Xeon E-2456. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-4800
Maximum memory size	256 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	59.7 GB/s	no data
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E5-1660 v2 and Xeon E-2456.

PCIe version	3.0	5
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.

---

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.

---

Pros & cons summary

---

Performance score	6.49	15.02
Recency	1 September 2013	14 December 2023
Power consumption (TDP)	130 Watt	80 Watt

---

Should you still have questions on choice between Xeon E5-1660 v2 and Xeon E-2456, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---