Intel Xeon Phi 31S1P vs Intel Xeon Phi 7120X

Comparative analysis of Intel Xeon Phi 31S1P and Intel Xeon Phi 7120X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Peripherals.

Intel Xeon Phi 31S1P

Intel Xeon Phi 7120X

Differences

Reasons to consider the Intel Xeon Phi 31S1P

Around 11% lower typical power consumption: 270 Watt vs 300 Watt

Thermal Design Power (TDP)	270 Watt vs 300 Watt

Reasons to consider the Intel Xeon Phi 7120X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 61 vs 57
Around 21% higher clock speed: 1.33 GHz vs 1.1 GHz
Around 7% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 7% more L2 cache; more data can be stored in the L2 cache for quick access later

Unlocked	Unlocked vs Locked
Number of cores	61 vs 57
Maximum frequency	1.33 GHz vs 1.1 GHz
L1 cache	32 KB (per core) vs 32 KB (per core)
L2 cache	512 KB (per core) vs 512 KB (per core)

Compare specifications (specs)

	Intel Xeon Phi 31S1P	Intel Xeon Phi 7120X
Essentials
Architecture codename	Knights Corner	Knights Corner
Launch date	June 2013	June 2013
Place in performance rating	not rated	not rated
Vertical segment	Server	Server
Processor Number		7120X
Series		Intel® Xeon Phi™ x100 Product Family
Status		Discontinued
Performance
64 bit support
Die size	350 mm	350 mm
L1 cache	32 KB (per core)	32 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
Manufacturing process technology	22 nm	22 nm
Maximum frequency	1.1 GHz	1.33 GHz
Number of cores	57	61
Transistor count	5000 million	5000 million
Base frequency		1.24 GHz
Unlocked
Memory
Supported memory types	DDR3, DDR4	DDR3, DDR4
Max memory channels		16
Maximum memory bandwidth		352 GB/s
Maximum memory size		16 GB
Compatibility
Max number of CPUs in a configuration	1	1
Thermal Design Power (TDP)	270 Watt	300 Watt
Low Halogen Options Available
Security & Reliability
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® vPro™ Platform Eligibility
Instruction set extensions		Intel® IMCI
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Peripherals
PCI Express revision		2.0