Comparison of AMD Epyc 7251 and Intel Xeon E3-1280 v5

Attribute	AMD Epyc 7251 ×	Intel Xeon E3-1280 v5 ×
General Information
Brand	AMD	Intel
Series	AMD Epyc	Intel Xeon E3
Model	AMD Epyc 7251	Intel Xeon E3-1280 v5
CPU Cores and Base Frequency
CPU Cores	8	4
Frequency (GHz)	2.1	3.7
CPU Threads	16	8
Core architecture	normal	normal
Hyperthreading	+	+
Overclocking	-	-
Turbo (1 Core) (GHz)	2.9	4
Turbo (4 Cores) (GHz)	-	3.9
Turbo (8 Cores) (GHz)	2.9	-
Encryption
AES-NI	+	+
Hardware codec support
JPEG	No	No
h264	No	No
h265 / HEVC (8 bit)	No	No
h265 / HEVC (10 bit)	No	No
VP8	No	No
AV1	No	No
VC-1	No	No
VP9	No	No
AVC	No	No
Memory And PCIe
Memory type	DDR4-2666	DDR4-2133
PCIe lanes	128	16
PCIe version	3.0	3.0
ECC	+	+
Memory channels	8	2
Technical details
Release date (year)	2017	2015
Technology (Nm)	14	14
Socket	SP3	LGA 1151
Virtualization	amd-v sev	vt-d vt-x vt-x ept
L3-Cache (MB)	32	8
Architecture	Zen	Skylake
Instruction set (ISA)	x86-64 (64 bit)	x86-64 (64 bit)
Thermal Management
TDP (PL1) (W)	120	80
Benchmarks
Estimated results for PassMark CPU Mark	11,809	11,630
Cinebench R15 (Single-Core)	128	172
Cinebench R15 (Multi-Core)	1,093	866
Cinebench R11.5, 64bit (Single-Core)	1.57	2.09
Cinebench R11.5, 64bit (Multi-Core)	11.04	9.67
Geekbench 3, 64bit (Single-Core)	3,410	4,536
Geekbench 3, 64bit (Multi-Core)	18,947	16,602