Xeon E7-8894 v4 vs X5660

Primary details

Comparing Xeon X5660 and Xeon E7-8894 v4 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1480	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.05	no data
Market segment	Server	Server
Series	no data	Intel Xeon E7
Power efficiency	3.76	no data
Architecture codename	Westmere-EP (2010−2011)	Broadwell (2015−2019)
Release date	16 March 2010 (14 years ago)	no data
Launch price (MSRP)	$33	$8,898

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon X5660 and Xeon E7-8894 v4 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)	24 (Tetracosa-Core)
Threads	12	48
Base clock speed	2.8 GHz	2.4 GHz
Boost clock speed	3.2 GHz	3.4 GHz
Bus type	no data	QPI
Bus rate	no data	3 × 9.6 GT/s
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	6 MB
L3 cache	12 MB (shared)	60 MB
Chip lithography	32 nm	14 nm
Die size	239 mm2	no data
Maximum core temperature	81 °C	79 °C
Number of transistors	1,170 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon X5660 and Xeon E7-8894 v4 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	8 (Multiprocessor)
Socket	FCLGA1366,LGA1366	FCLGA2011
Power consumption (TDP)	95 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5660 and Xeon E7-8894 v4. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® AVX2
AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	-	+
Flex Memory Access	no data	-
Demand Based Switching	+	-
PAE	40 Bit	46 Bit

Security technologies

Xeon X5660 and Xeon E7-8894 v4 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5660 and Xeon E7-8894 v4 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5660 and Xeon E7-8894 v4. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-1333, DDR4-1600, DDR4-1866, DDR3-1066, DDR3-1333, DDR3-1600
Maximum memory size	288 GB	3 TB
Max memory channels	3	4
Maximum memory bandwidth	32 GB/s	85 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon X5660 and Xeon E7-8894 v4.

PCIe version	2.0	3.0
PCI Express lanes	no data	32

Pros & cons summary

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Physical cores	6	24
Threads	12	48
Chip lithography	32 nm	14 nm
Power consumption (TDP)	95 Watt	165 Watt

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Should you still have questions on choice between Xeon X5660 and Xeon E7-8894 v4, ask them in Comments section, and we shall answer.

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