EPYC 7663 vs i9-14900HX

Primary details

Comparing Core i9-14900HX and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	155	30
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	4.60
Market segment	Laptop	Server
Series	Raptor Lake-HX	AMD EPYC
Power efficiency	49.57	20.38
Architecture codename	Raptor Lake-HX Refresh (2024)	Milan (2021−2023)
Release date	8 January 2024 (less than a year ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	no data	$6,366

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-14900HX and EPYC 7663 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)	56 (Hexapentaconta-Core)
Threads	32	112
Base clock speed	2.2 GHz	2 GHz
Boost clock speed	5.7 GHz	3.5 GHz
Bus rate	157 MHz	no data
Multiplier	no data	20
L1 cache	80 KB (per core)	64 KB (per core)
L2 cache	2 MB (per core)	512 KB (per core)
L3 cache	36 MB (shared)	256 MB (shared)
Chip lithography	Intel 7 nm	7 nm+
Die size	257 mm2	8x 81 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	no data	+
Unlocked multiplier	+	-

Compatibility

Information on Core i9-14900HX and EPYC 7663 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	FCBGA1964	SP3
Power consumption (TDP)	55 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-14900HX and EPYC 7663. 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	+	+
FMA	+	-
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	+	-

Security technologies

Core i9-14900HX and EPYC 7663 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-14900HX and EPYC 7663 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 i9-14900HX and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR4-3200
Maximum memory size	192 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	89.6 GB/s	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® UHD Graphics for 14th Gen Intel® Processors	N/A
Quick Sync Video	+	-
Graphics max frequency	1.65 GHz	no data
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Core i9-14900HX and EPYC 7663 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i9-14900HX and EPYC 7663 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	no data
Max resolution over eDP	5120 x 3200 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-14900HX and EPYC 7663 integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-14900HX and EPYC 7663.

PCIe version	5.0 and 4.0	4.0
PCI Express lanes	16	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

---

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.

---

Pros & cons summary

---

Performance score	29.90	53.64
Recency	8 January 2024	15 March 2021
Physical cores	24	56
Threads	32	112
Power consumption (TDP)	55 Watt	240 Watt

---

Should you still have questions on choice between Core i9-14900HX and EPYC 7663, 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.

---