EPYC Embedded 3251 vs Xeon D-1521

Primary details

Comparing Xeon D-1521 and EPYC Embedded 3251 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1519not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.60no data
Market segmentServerServer
SeriesIntel Xeon DAMD EPYC Embedded
Power efficiency7.52no data
Architecture codenameBroadwell (2015−2019)Zen (2017−2020)
Release date1 November 2015 (9 years ago)21 February 2018 (6 years ago)
Launch price (MSRP)$199$315

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon D-1521 and EPYC Embedded 3251 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 cores4 (Quad-Core)8 (Octa-Core)
Threads816
Base clock speed2.4 GHz2.5 GHz
Boost clock speed2.7 GHz3.1 GHz
Bus typeDMI 2.0no data
Multiplier2425
L1 cache64K (per core)96K (per core)
L2 cache256K (per core)512K (per core)
L3 cache1.5 MB (per core)16 MB (shared)
Chip lithography14 nm14 nm
Die size246.24 mm2192 mm2
Maximum case temperature (TCase)80 °Cno data
Number of transistors3,200 million4,800 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+

Compatibility

Information on Xeon D-1521 and EPYC Embedded 3251 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1667TR4
Power consumption (TDP)45 Watt50 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-1521 and EPYC Embedded 3251. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX2no data
AES-NI++
AVX++
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Idle States+no data
Thermal Monitoring+-
GPIO+no data

Security technologies

Xeon D-1521 and EPYC Embedded 3251 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-1521 and EPYC Embedded 3251 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 Xeon D-1521 and EPYC Embedded 3251. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4, DDR3DDR4 Eight-channel
Maximum memory size128 GB512 GB
Max memory channels22
Maximum memory bandwidth34.124 GB/s42.671 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by Xeon D-1521 and EPYC Embedded 3251.

PCIe version2.0/3.0no data
PCI Express lanes24no data
USB revision2.0/3.0no data
Total number of SATA ports6no data
Number of USB ports8no data
Integrated LAN+no data
UART+no data

Pros & cons summary


Recency 1 November 2015 21 February 2018
Physical cores 4 8
Threads 8 16
Power consumption (TDP) 45 Watt 50 Watt

Xeon D-1521 has 11.1% lower power consumption.

EPYC Embedded 3251, on the other hand, has an age advantage of 2 years, and 100% more physical cores and 100% more threads.

We couldn't decide between Xeon D-1521 and EPYC Embedded 3251. We've got no test results to judge.


Should you still have questions on choice between Xeon D-1521 and EPYC Embedded 3251, ask them in Comments section, and we shall answer.

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Intel Xeon D-1521
Xeon D-1521
AMD EPYC Embedded 3251
EPYC Embedded 3251

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