i9-10940XE vs i9-10900KF

Primary details

Comparing Core i9-10900KF and Core i9-10940XE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	510	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	14.34	no data
Market segment	Desktop processor	Desktop processor
Power efficiency	10.74	no data
Architecture codename	Comet Lake (2020)	Cascade Lake-X (2019)
Release date	30 April 2020 (4 years ago)	19 October 2019 (5 years ago)
Launch price (MSRP)	$509	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-10900KF and Core i9-10940XE 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)	14 (Tetradeca-Core)
Threads	20	28
Base clock speed	3.7 GHz	3.3 GHz
Boost clock speed	5.2 GHz	4.8 GHz
Bus rate	8 GT/s	no data
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	20 MB (shared)	19.25 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	+

Compatibility

Information on Core i9-10900KF and Core i9-10940XE 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	2066
Power consumption (TDP)	125 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-10900KF and Core i9-10940XE. 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	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	+	no data

Security technologies

Core i9-10900KF and Core i9-10940XE technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-10900KF and Core i9-10940XE are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-10900KF and Core i9-10940XE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR4 Quad-channel
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	45.8 GB/s	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 i9-10900KF and Core i9-10940XE.

PCIe version	3.0	3.0
PCI Express lanes	16	no data

Pros & cons summary

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Recency	30 April 2020	19 October 2019
Physical cores	10	14
Threads	20	28
Power consumption (TDP)	125 Watt	165 Watt

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Should you still have questions on choice between Core i9-10900KF and Core i9-10940XE, ask them in Comments section, and we shall answer.

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