EPYC 7663 vs Core Ultra 7 155H

Primary details

Comparing Core Ultra 7 155H and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	383	26
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Meteor Lake-H	AMD EPYC
Architecture codename	Meteor Lake-H	Milan (2021)
Release date	14 December 2023 (less than a year ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	no data	$6,366
Current price	no data	$15069 (2.4x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core Ultra 7 155H 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	16 (Hexadeca-Core)	56 (Hexapentaconta-Core)
Threads	22	112
Base clock speed	3.8 GHz	2 GHz
Boost clock speed	4.8 GHz	3.5 GHz
L1 cache	112 KB (per core)	64 KB (per core)
L2 cache	2 MB (per core)	512 KB (per core)
L3 cache	24 MB (shared)	256 MB (shared)
Chip lithography	7 nm	7 nm+
Die size	no data	8x 81 mm2
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	no data	+
Unlocked multiplier	No	Yes

Compatibility

Information on Core Ultra 7 155H 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	FCBGA2049	SP3
Power consumption (TDP)	28 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 155H 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	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Hyper-Threading Technology	+	no data
TSX	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	+	no data
SIPP	-	no data
Turbo Boost Max 3.0	+	no data
Status	Launched	no data

Security technologies

Core Ultra 7 155H and EPYC 7663 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 Ultra 7 155H and EPYC 7663 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155H and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR4-3200
Maximum memory size	96 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	no data	204.795 GB/s
ECC memory support	-	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	N/A
Quick Sync Video	+	no data
Graphics max frequency	2.25 GHz	no data

Graphics interfaces

Available interfaces and connections of Core Ultra 7 155H and EPYC 7663 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core Ultra 7 155H and EPYC 7663 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)	no data
Max resolution over eDP	3840x2400 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core Ultra 7 155H and EPYC 7663 integrated GPUs, sometimes API versions are included.

DirectX	12.2	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core Ultra 7 155H and EPYC 7663.

PCIe version	5.0	4.0
PCI Express lanes	28	128
PCI support	5.0 and 4.0	no data

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.

EPYC 7663 outperforms Core Ultra 7 155H by 229% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	16.15	53.07
Recency	14 December 2023	15 March 2021
Physical cores	16	56
Threads	22	112
Power consumption (TDP)	28 Watt	240 Watt

---

Should you still have questions on choice between Core Ultra 7 155H 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.

---