Xeon Phi 31S1P vs E5-2650 v2

Primary details

Comparing Xeon E5-2650 v2 and Xeon Phi 31S1P processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	998	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.36	no data
Market segment	Server	Server
Architecture codename	Ivy Bridge-EP (2013)	Knights Corner (2012−2014)
Release date	1 September 2013 (10 years ago)	17 June 2013 (11 years ago)
Launch price (MSRP)	$650	no data
Current price	$48 (0.1x MSRP)	$144

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5-2650 v2 and Xeon Phi 31S1P 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)	57 (Heptapentaconta-Core)
Threads	16	228
Base clock speed	2.6 GHz	no data
Boost clock speed	3.4 GHz	1.1 GHz
L1 cache	64 KB (per core)	32 KB (per core)
L2 cache	256 KB (per core)	512 KB (per core)
L3 cache	20 MB (shared)	0 KB (shared)
Chip lithography	22 nm	22 nm
Die size	160 mm2	350 mm2
Maximum core temperature	75 °C	no data
Number of transistors	1,400 million	5,000 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E5-2650 v2 and Xeon Phi 31S1P 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	PCIe x16
Power consumption (TDP)	95 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2650 v2 and Xeon Phi 31S1P. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon E5-2650 v2 and Xeon Phi 31S1P technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2650 v2 and Xeon Phi 31S1P are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2650 v2 and Xeon Phi 31S1P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3, DDR4
Maximum memory size	768 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	59.7 GB/s	no data
ECC memory support	+	no data

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2650 v2 and Xeon Phi 31S1P.

PCIe version	3.0	no data
PCI Express lanes	40	no data

Pros & cons summary

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Recency	1 September 2013	17 June 2013
Physical cores	8	57
Threads	16	228
Power consumption (TDP)	95 Watt	270 Watt

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Should you still have questions on choice between Xeon E5-2650 v2 and Xeon Phi 31S1P, ask them in Comments section, and we shall answer.

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