i9-12900KF vs i5-10400F

Primary details

Comparing Core i5-10400F and Core i9-12900KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	915	187
Place by popularity	12	not in top-100
Cost-effectiveness evaluation	23.00	36.82
Market segment	Desktop processor	Desktop processor
Series	no data	Intel Core i9
Power efficiency	11.93	19.59
Architecture codename	Comet Lake (2020)	Alder Lake, Golden Cove, Gracemont (2021)
Release date	30 April 2020 (4 years ago)	27 October 2021 (3 years ago)
Launch price (MSRP)	$155	$564

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-12900KF has 60% better value for money than i5-10400F.

Detailed specifications

Core i5-10400F and Core i9-12900KF 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	6 (Hexa-Core)	16 (Hexadeca-Core)
Threads	12	24
Base clock speed	2.9 GHz	3.2 GHz
Boost clock speed	4.3 GHz	5.2 GHz
Bus type	no data	DMI 4.0
Bus rate	8 GT/s	8 × 16 GT/s
Multiplier	no data	32
L1 cache	64K (per core)	768 KB
L2 cache	256K (per core)	4 MB
L3 cache	12 MB (shared)	6 MB
Chip lithography	14 nm	Intel 7 nm
Die size	no data	215.25 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	-	+

Compatibility

Information on Core i5-10400F and Core i9-12900KF 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	FCLGA1200	FCLGA1700
Power consumption (TDP)	65 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-10400F and Core i9-12900KF. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i5-10400F and Core i9-12900KF technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+
Secure Key	+	+
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-10400F and Core i9-12900KF are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-10400F and Core i9-12900KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-4800, DDR4-3200
Maximum memory size	128 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	41.6 GB/s	76.805 GB/s

Peripherals

Specifications and connection of peripherals supported by Core i5-10400F and Core i9-12900KF.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	16	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.

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Pros & cons summary

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Performance score	8.23	25.99
Recency	30 April 2020	27 October 2021
Physical cores	6	16
Threads	12	24
Power consumption (TDP)	65 Watt	125 Watt

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Should you still have questions on choice between Core i5-10400F and Core i9-12900KF, ask them in Comments section, and we shall answer.

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