Core i9-14900KF vs Core i9-7900X

Primary details

Comparing Core i9-7900X and Core i9-14900KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	508	69
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.74	84.45
Market segment	Desktop processor	Desktop processor
Series	Core i9 (Desktop)	no data
Architecture codename	Skylake (server) (2017−2019)	no data
Release date	30 May 2017 (7 years ago)	1 October 2023 (less than a year ago)
Launch price (MSRP)	$999	no data
Current price	$864 (0.9x MSRP)	$514

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-14900KF has 1682% better value for money than i9-7900X.

Detailed specifications

Core i9-7900X and Core i9-14900KF 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	10 (Deca-Core)	24 (Tetracosa-Core)
Threads	20	32
Base clock speed	3.3 GHz	no data
Boost clock speed	4.5 GHz	5.8 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	640 KB	no data
L2 cache	10 MB	no data
L3 cache	13.75 MB	36 MB Intel® Smart Cache
Chip lithography	14 nm	Intel 7 nm
Maximum core temperature	95 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	Yes	No

Compatibility

Information on Core i9-7900X and Core i9-14900KF 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
Socket	Socket R4	FCLGA1700
Power consumption (TDP)	140 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-7900X and Core i9-14900KF. 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	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	no data
Idle States	no data	+
Thermal Monitoring	no data	+
Turbo Boost Max 3.0	+	+
Status	Discontinued	Launched

Security technologies

Core i9-7900X and Core i9-14900KF technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-7900X and Core i9-14900KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-7900X and Core i9-14900KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-5600, DDR4-3200
Maximum memory size	128 GB	192 GB
Max memory channels	4	2
Maximum memory bandwidth	85 GB/s	89.6 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-7900X and Core i9-14900KF.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	44	20

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.

Core i9-14900KF outperforms Core i9-7900X by 184% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	13.65	38.83
Recency	30 May 2017	1 October 2023
Physical cores	10	24
Threads	20	32

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Should you still have questions on choice between Core i9-7900X and Core i9-14900KF, ask them in Comments section, and we shall answer.

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