EPYC 7663 vs Atom C3850

Primary details

Comparing Atom C3850 and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	31
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.89
Market segment	Server	Server
Series	Intel Atom	AMD EPYC
Power efficiency	no data	20.38
Architecture codename	Goldmont (2016−2017)	Milan (2021−2023)
Release date	15 August 2017 (7 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	$323	$6,366

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Atom C3850 and EPYC 7663 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	12 (Dodeca-Core)	56 (Hexapentaconta-Core)
Threads	12	112
Base clock speed	2.1 GHz	2 GHz
Boost clock speed	2.4 GHz	3.5 GHz
Multiplier	21	20
L1 cache	672 KB	3584 KB
L2 cache	12 MB	28 MB
L3 cache	12 MB	256 MB (shared)
Chip lithography	14 nm	7 nm+
Die size	no data	8x 81 mm2
Maximum core temperature	78 °C	no data
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Atom C3850 and EPYC 7663 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	SP3
Power consumption (TDP)	25 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3850 and EPYC 7663. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
QuickAssist	-	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	-	no data

Security technologies

Atom C3850 and EPYC 7663 technologies aimed at improving security, for example, by protecting against hacks.

EDB	+	no data
Secure Boot	+	no data
Secure Key	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3850 and EPYC 7663 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3850 and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR4-3200
Maximum memory size	256 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	34.134 GB/s	204.795 GB/s
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 C3850 and EPYC 7663.

PCIe version	3	4.0
PCI Express lanes	16	128
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	no data

Pros & cons summary

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Recency	15 August 2017	12 January 2021
Physical cores	12	56
Threads	12	112
Chip lithography	14 nm	7 nm
Power consumption (TDP)	25 Watt	240 Watt

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