Comparison of Intel Xeon E5-2603 v3 and Intel Xeon E5-2620 v3

Attribute	Intel Xeon E5-2620 v3 ×	Intel Xeon E5-2603 v3 ×
General Information
Brand	Intel	Intel
Series	Intel Xeon E5	Intel Xeon E5
Model	Intel Xeon E5-2620 v3	Intel Xeon E5-2603 v3
CPU Cores and Base Frequency
CPU Cores	6	6
Frequency (GHz)	2.4	1.6
CPU Threads	12	6
Core architecture	normal	normal
Hyperthreading	+	-
Overclocking	-	-
Turbo (1 Core) (GHz)	3.2	-
Turbo (6 Cores) (GHz)	2.8	-
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	DDR4-2133	DDR4-2133
PCIe lanes	40	40
PCIe version	3.0	3.0
ECC	+	+
Memory channels	4	4
Technical details
Release date (year)	2014	2014
Technology (Nm)	22	22
Socket	LGA 2011-3	LGA 2011-3
Virtualization	vpro vt-d vt-x vt-x ept	vpro vt-d vt-x vt-x ept
L3-Cache (MB)	15	15
Architecture	Haswell E	Haswell E
Instruction set (ISA)	x86-64 (64 bit)	x86-64 (64 bit)
Thermal Management
TDP (PL1) (W)	85	85
Benchmarks
Estimated results for PassMark CPU Mark	9,986	5,179
Geekbench 5, 64bit (Single-Core)	696	412
Geekbench 5, 64bit (Multi-Core)	3,973	2,201
Cinebench R15 (Single-Core)	123	62
Cinebench R15 (Multi-Core)	894	511
Cinebench R11.5, 64bit (Single-Core)	1.54	0.77
Cinebench R11.5, 64bit (Multi-Core)	9.1	5.2
Geekbench 3, 64bit (Single-Core)	3,325	1,662
Geekbench 3, 64bit (Multi-Core)	18,984	10,848