Core i5-8420 vs Core i7-14700HX

Primary details

Comparing Core i7-14700HX and Core i5-8420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	184	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Raptor Lake-HX	Intel Core i5
Architecture codename	Raptor Lake-HX Refresh	Coffee Lake (2017−2019)
Release date	9 January 2024 (less than a year ago)	1 September 2018 (5 years ago)

Detailed specifications

Core i7-14700HX and Core i5-8420 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 cores	20 (Icosa-Core)	6 (Hexa-Core)
Threads	28	6
Base clock speed	3.9 GHz	2.9 GHz
Boost clock speed	5.4 GHz	4.1 GHz
Bus support	no data	4 × 8 GT/s
L1 cache	no data	64K (per core)
L2 cache	24 MB	256K (per core)
L3 cache	30 MB	9 MB (shared)
Chip lithography	Intel 7 nm	14 nm
Die size	257 mm2	126 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	No	No

Compatibility

Information on Core i7-14700HX and Core i5-8420 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 configuration	1	1 (Uniprocessor)
Socket	FCBGA1964	1151
Power consumption (TDP)	55 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-14700HX and Core i5-8420. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
FMA	+	no data
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Hyper-Threading Technology	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	+	no data
Turbo Boost Max 3.0	+	no data
Status	Launched	no data

Security technologies

Core i7-14700HX and Core i5-8420 technologies aimed at improving security, for example, by protecting against hacks.

Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-14700HX and Core i5-8420 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-14700HX and Core i5-8420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR4 Dual-channel
Maximum memory size	192 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	89.6 GB/s	42.671 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® UHD Graphics for 14th Gen Intel® Processors	Intel UHD Graphics 630
Quick Sync Video	+	no data
Graphics max frequency	1.6 GHz	no data
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Core i7-14700HX and Core i5-8420 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i7-14700HX and Core i5-8420 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	no data
Max resolution over eDP	5120 x 3200 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i7-14700HX and Core i5-8420 integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-14700HX and Core i5-8420.

PCIe version	5.0 and 4.0	3.0
PCI Express lanes	20	no data

Pros & cons summary

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Recency	9 January 2024	1 September 2018
Physical cores	20	6
Threads	28	6
Power consumption (TDP)	55 Watt	65 Watt

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Should you still have questions on choice between Core i7-14700HX and Core i5-8420, ask them in Comments section, and we shall answer.

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