Ultra 7 266V vs EPYC 7643

Primary details

Comparing EPYC 7643 and Core Ultra 7 266V processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	39	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	6.36	no data
Market segment	Server	Laptop
Series	AMD EPYC	no data
Power efficiency	20.13	no data
Architecture codename	Milan (2021−2023)	Lunar Lake (2024)
Release date	12 January 2021 (3 years ago)	24 September 2024 (less than a year ago)
Launch price (MSRP)	$4,995	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7643 and Core Ultra 7 266V 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	48 (Octatetraconta-Core)	8 (Octa-Core)
Threads	96	8
Base clock speed	2.3 GHz	2.2 GHz
Boost clock speed	3.6 GHz	5 GHz
Bus rate	no data	37 MHz
Multiplier	23	no data
L1 cache	3 MB	192 KB (per core)
L2 cache	24 MB	2.5 MB (per core)
L3 cache	256 MB (shared)	12 MB (shared)
Chip lithography	7 nm+	3 nm
Die size	8x 81 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	33,200 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on EPYC 7643 and Core Ultra 7 266V 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	2	1
Socket	SP3	Intel BGA 2833
Power consumption (TDP)	225 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7643 and Core Ultra 7 266V. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
TSX	-	+

Security technologies

EPYC 7643 and Core Ultra 7 266V technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7643 and Core Ultra 7 266V are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7643 and Core Ultra 7 266V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5
Maximum memory size	4 TiB	no data
Maximum memory bandwidth	204.795 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

Arc 140V

Peripherals

Specifications and connection of peripherals supported by EPYC 7643 and Core Ultra 7 266V.

PCIe version	4.0	5.0
PCI Express lanes	128	4

Pros & cons summary

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Recency	12 January 2021	24 September 2024
Physical cores	48	8
Threads	96	8
Chip lithography	7 nm	3 nm
Power consumption (TDP)	225 Watt	17 Watt

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