Intel Xeon Silver 4215R vs AMD EPYC Embedded 3251

Comparative analysis of Intel Xeon Silver 4215R and AMD EPYC Embedded 3251 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon Silver 4215R

AMD EPYC Embedded 3251

Differences

Reasons to consider the Intel Xeon Silver 4215R

CPU is newer: launch date 2 year(s) 0 month(s) later
Around 29% higher clock speed: 4.00 GHz vs 3.1 GHz
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more maximum memory size: 1 TB vs 512 GB
Around 3% better performance in PassMark - Single thread mark: 1945 vs 1881
Around 73% better performance in PassMark - CPU mark: 24102 vs 13912

Specifications (specs)
Launch date	24 Feb 2020 vs 21 Feb 2018
Maximum frequency	4.00 GHz vs 3.1 GHz
L2 cache	8 MB vs 4 MB
Maximum memory size	1 TB vs 512 GB
Benchmarks
PassMark - Single thread mark	1945 vs 1881
PassMark - CPU mark	24102 vs 13912

Reasons to consider the AMD EPYC Embedded 3251

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 45% more L3 cache; more data can be stored in the L3 cache for quick access later
2.6x lower typical power consumption: 50 Watt vs 130 Watt

Unlocked	Unlocked vs Locked
L1 cache	768 KB vs 512 KB
L3 cache	16 MB vs 11 MB
Thermal Design Power (TDP)	50 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Xeon Silver 4215R
CPU 2: AMD EPYC Embedded 3251

PassMark - Single thread mark

CPU 1

CPU 2

1945

1881

PassMark - CPU mark

CPU 1

CPU 2

24102

13912

Name	Intel Xeon Silver 4215R	AMD EPYC Embedded 3251
PassMark - Single thread mark	1945	1881
PassMark - CPU mark	24102	13912

Compare specifications (specs)

	Intel Xeon Silver 4215R	AMD EPYC Embedded 3251
Essentials
Architecture codename	Cascade Lake	Zen
Launch date	24 Feb 2020	21 Feb 2018
Launch price (MSRP)	$794
Place in performance rating	894	1089
Processor Number	4215R
Series	2nd Generation Intel Xeon Scalable Processors
Status	Launched
Vertical segment	Server	Server
Performance
Base frequency	3.20 GHz	2.5 GHz
L1 cache	512 KB	768 KB
L2 cache	8 MB	4 MB
L3 cache	11 MB	16 MB
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	79°C
Maximum frequency	4.00 GHz	3.1 GHz
Number of cores	8	8
Number of threads	16	16
Number of Ultra Path Interconnect (UPI) Links	2
64 bit support
Die size		192 mm
Transistor count		4800 million
Unlocked
Memory
Max memory channels	6	2
Maximum memory size	1 TB	512 GB
Supported memory frequency	2400 MHz
Supported memory types	DDR4-2400	DDR4-2666
ECC memory support
Maximum memory bandwidth		39.74 GB/s
Compatibility
Package Size	76.0mm x 56.5mm
Sockets supported	FCLGA3647
Thermal Design Power (TDP)	130 Watt	50 Watt
Max number of CPUs in a configuration		1
Peripherals
Max number of PCIe lanes	48	32
PCI Express revision	3.0	3.0
Scalability	2S
Integrated LAN
PCIe configurations		x16, x8, x4, x2
Total number of SATA ports		8
USB revision		3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Run Sure Technology
Intel® Trusted Execution technology (TXT)
Mode-based Execute Control (MBE)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Number of AVX-512 FMA Units	1
Speed Shift technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)