EPYC 9645 vs i9-14900KF

Primary details

Comparing Core i9-14900KF and EPYC 9645 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	66.51	no data
Market segment	Desktop processor	Server
Power efficiency	28.29	no data
Architecture codename	Raptor Lake-R (2023−2024)	Turin (2024)
Release date	17 October 2023 (1 year ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$564	$11,048

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-14900KF and EPYC 9645 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)	96
Threads	32	192
Base clock speed	3.2 GHz	2.3 GHz
Boost clock speed	5.8 GHz	3.7 GHz
L1 cache	80 KB (per core)	80 KB (per core)
L2 cache	2 MB (per core)	1 MB (per core)
L3 cache	36 MB (shared)	256 MB (shared)
Chip lithography	Intel 7 nm	3 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 EPYC 9645 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	2
Socket	FCLGA1700	SP5
Power consumption (TDP)	125 Watt	320 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-14900KF and EPYC 9645. 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)	+	no data
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
Precision Boost 2	no data	+
Deep Learning Boost	+	-

Security technologies

Core i9-14900KF and EPYC 9645 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-14900KF and EPYC 9645 are enumerated here.

AMD-V	-	+
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 EPYC 9645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-5600, DDR4-3200	DDR5
Maximum memory size	192 GB	no data
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

N/A

Peripherals

Specifications and connection of peripherals supported by Core i9-14900KF and EPYC 9645.

PCIe version	5.0 and 4.0	5.0
PCI Express lanes	16	128

Pros & cons summary

---

Recency	17 October 2023	10 October 2024
Physical cores	24	96
Threads	32	192
Power consumption (TDP)	125 Watt	320 Watt

---

Should you still have questions on choice between Core i9-14900KF and EPYC 9645, 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.

---