i9-14900K vs i9-9920X

Primary details

Comparing Core i9-9920X and Core i9-14900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	430	80
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.24	64.62
Market segment	Desktop processor	Desktop processor
Series	Intel Core i9	no data
Power efficiency	9.09	28.59
Architecture codename	Skylake (server) (2017−2018)	Raptor Lake-R (2023−2024)
Release date	8 October 2018 (6 years ago)	17 October 2023 (1 year ago)
Launch price (MSRP)	$1,189	$589

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-14900K has 1133% better value for money than i9-9920X.

Detailed specifications

Core i9-9920X and Core i9-14900K 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	12 (Dodeca-Core)	24 (Tetracosa-Core)
Threads	24	32
Base clock speed	3.5 GHz	3.2 GHz
Boost clock speed	4.5 GHz	5.8 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	35	no data
L1 cache	768 KB	80 KB (per core)
L2 cache	12 MB	2 MB (per core)
L3 cache	19.25 MB (shared)	36 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	484 mm2	257 mm2
Maximum core temperature	92 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	+

Compatibility

Information on Core i9-9920X and Core i9-14900K 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 (Uniprocessor)	1
Socket	FCLGA2066	FCLGA1700
Power consumption (TDP)	165 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9920X and Core i9-14900K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	no data	+
Thermal Monitoring	-	+
SIPP	-	+
Turbo Boost Max 3.0	+	+
Deep Learning Boost	-	+

Security technologies

Core i9-9920X and Core i9-14900K technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9920X and Core i9-14900K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9920X and Core i9-14900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4, DDR5
Maximum memory size	128 GB	192 GB
Max memory channels	4	2
Maximum memory bandwidth	85.33 GB/s	89.6 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel UHD Graphics 770
Quick Sync Video	-	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.65 GHz
Execution Units	no data	32

Graphics interfaces

Available interfaces and connections of Core i9-9920X and Core i9-14900K integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Core i9-9920X and Core i9-14900K integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Core i9-9920X and Core i9-14900K integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Core i9-9920X and Core i9-14900K.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	44	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	15.84	37.76
Recency	8 October 2018	17 October 2023
Physical cores	12	24
Threads	24	32
Power consumption (TDP)	165 Watt	125 Watt

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Should you still have questions on choice between Core i9-9920X and Core i9-14900K, ask them in Comments section, and we shall answer.

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