Xeon Silver 4309Y vs Phi 31S1P

Primary details

Comparing Xeon Phi 31S1P and Xeon Silver 4309Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	630
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Power efficiency	no data	10.84
Architecture codename	Knights Corner (2012−2014)	Ice Lake-SP (2021)
Release date	17 June 2013 (11 years ago)	6 April 2021 (3 years ago)

Detailed specifications

Xeon Phi 31S1P and Xeon Silver 4309Y 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	57 (Heptapentaconta-Core)	8 (Octa-Core)
Threads	228	16
Base clock speed	no data	2.8 GHz
Boost clock speed	1.1 GHz	3.6 GHz
L1 cache	32 KB (per core)	64K (per core)
L2 cache	512 KB (per core)	1 MB (per core)
L3 cache	0 KB (shared)	12 MB (shared)
Chip lithography	22 nm	10 nm
Die size	350 mm2	no data
Maximum case temperature (TCase)	no data	76 °C
Number of transistors	5,000 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Xeon Phi 31S1P and Xeon Silver 4309Y 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	2
Socket	PCIe x16	FCLGA4189
Power consumption (TDP)	270 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Phi 31S1P and Xeon Silver 4309Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	-	+
Deep Learning Boost	-	+

Security technologies

Xeon Phi 31S1P and Xeon Silver 4309Y technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+
SGX	no data	Yes with Intel® SPS

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Phi 31S1P and Xeon Silver 4309Y are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Phi 31S1P and Xeon Silver 4309Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR4-2667
Maximum memory size	no data	6 TB
Max memory channels	no data	8
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Xeon Phi 31S1P and Xeon Silver 4309Y.

PCIe version	no data	4.0
PCI Express lanes	no data	64

Pros & cons summary

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Recency	17 June 2013	6 April 2021
Physical cores	57	8
Threads	228	16
Chip lithography	22 nm	10 nm
Power consumption (TDP)	270 Watt	105 Watt

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