Comparison of Intel Core i7-7740X and Intel Core i7-4820K

Attribute	Intel Core i7-7740X ×	Intel Core i7-4820K ×
General Information
Brand	Intel	Intel
Series	Intel Core i7	Intel Core i7 Extreme Edition
Model	Intel Core i7-7740X	Intel Core i7-4820K
CPU Cores and Base Frequency
CPU Cores	4	4
Frequency (GHz)	4.3	3.7
CPU Threads	8	8
Core architecture	normal	normal
Hyperthreading	+	+
Overclocking	+	+
Turbo (1 Core) (GHz)	4.5	3.9
Turbo (4 Cores) (GHz)	4.3	3.8
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	DDR4-2666	DDR3-1866
PCIe lanes	16	40
PCIe version	3.0	3.0
ECC	-	-
Memory channels	2	4
Technical details
Release date (year)	2017	2013
Technology (Nm)	14	22
Socket	LGA 2066	LGA 2011
Virtualization	vt-d vt-x	vt-d vt-x vt-x ept
L3-Cache (MB)	8	10
Architecture	Kaby Lake-X	Ivy Bridge E
Instruction set (ISA)	x86-64 (64 bit)	x86-64 (64 bit)
Thermal Management
TDP (PL1) (W)	112	130
Benchmarks
Estimated results for PassMark CPU Mark	11,855	10,355
Geekbench 5, 64bit (Single-Core)	1,277	825
Geekbench 5, 64bit (Multi-Core)	4,681	3,392
Cinebench R15 (Single-Core)	200	141
Cinebench R15 (Multi-Core)	976	728
Cinebench R11.5, 64bit (Single-Core)	2.36	1.75
Cinebench R11.5, 64bit (Multi-Core)	10.73	8.75
Geekbench 3, 64bit (Single-Core)	5,133	3,813
Geekbench 3, 64bit (Multi-Core)	18,340	15,097