i7-4940MX Extreme Edition vs i9-14900KF

Primary details

Comparing Core i9-14900KF and Core i7-4940MX Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	82	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	66.54	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i7EE
Power efficiency	28.32	no data
Architecture codename	Raptor Lake-R (2023−2024)	Haswell (2013−2015)
Release date	17 October 2023 (1 year ago)	19 January 2014 (10 years ago)
Launch price (MSRP)	$564	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-14900KF and Core i7-4940MX Extreme Edition 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	24 (Tetracosa-Core)	4 (Quad-Core)
Threads	32	8
Base clock speed	3.2 GHz	no data
Boost clock speed	5.8 GHz	3.1 GHz
Bus type	no data	DMI
Bus rate	no data	5 GT/s
Multiplier	no data	31
L1 cache	80 KB (per core)	no data
L2 cache	2 MB (per core)	1 MB
L3 cache	36 MB (shared)	8 MB
Chip lithography	Intel 7 nm	22 nm
Die size	257 mm2	no data
Maximum core temperature	100 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i9-14900KF and Core i7-4940MX Extreme Edition 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	no data
Socket	FCLGA1700	no data
Power consumption (TDP)	125 Watt	57 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-14900KF and Core i7-4940MX Extreme Edition. 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	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
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
Deep Learning Boost	+	-

Security technologies

Core i9-14900KF and Core i7-4940MX Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-14900KF and Core i7-4940MX Extreme Edition are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-14900KF and Core i7-4940MX Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-5600, DDR4-3200	no data
Maximum memory size	192 GB	32 GB
Max memory channels	2	no data
Maximum memory bandwidth	89.6 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 i9-14900KF and Core i7-4940MX Extreme Edition.

PCIe version	5.0 and 4.0	3.0
PCI Express lanes	16	16

Pros & cons summary

---

Recency	17 October 2023	19 January 2014
Physical cores	24	4
Threads	32	8
Power consumption (TDP)	125 Watt	57 Watt

---

Should you still have questions on choice between Core i9-14900KF and Core i7-4940MX Extreme Edition, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---