Xeon Silver 4509Y vs Atom C3950

Primary details

Comparing Atom C3950 and Xeon Silver 4509Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	Intel Atom	no data
Architecture codename	Goldmont (2016−2017)	Sapphire Rapids (2023−2024)
Release date	15 August 2017 (7 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$389	$563

Detailed specifications

Atom C3950 and Xeon Silver 4509Y 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	16 (Hexadeca-Core)	8 (Octa-Core)
Threads	16	16
Base clock speed	1.7 GHz	2.6 GHz
Boost clock speed	2.2 GHz	4.1 GHz
Multiplier	17	no data
L1 cache	896 KB	80 KB (per core)
L2 cache	16 MB	2 MB (per core)
L3 cache	16 MB	22.5 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Maximum core temperature	78 °C	no data
Maximum case temperature (TCase)	no data	84 °C
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Atom C3950 and Xeon Silver 4509Y 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 (Uniprocessor)	2
Socket	FCBGA1310	FCLGA4677
Power consumption (TDP)	24 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3950 and Xeon Silver 4509Y. You'll probably need this information if you require some particular technology.

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

Security technologies

Atom C3950 and Xeon Silver 4509Y technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Boot	+	no data
Secure Key	+	no data
SGX	-	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3950 and Xeon Silver 4509Y are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3950 and Xeon Silver 4509Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR5 @ 4400 MT/s (1 DPC &2DPC)
Maximum memory size	256 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	38.397 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 Atom C3950 and Xeon Silver 4509Y.

PCIe version	3	5
PCI Express lanes	16	80
USB revision	3	no data
Total number of SATA ports	16	no data
Max number of SATA 6 Gb/s Ports	16	no data
Number of USB ports	8	no data
Integrated LAN	2x10/2.5/1 GBE + 2x1 GBE	no data

Pros & cons summary

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Recency	15 August 2017	14 December 2023
Physical cores	16	8
Power consumption (TDP)	24 Watt	125 Watt

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