Xeon Platinum 8558P vs EPYC 7643

Primary details

Comparing EPYC 7643 and Xeon Platinum 8558P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	38	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	6.71	no data
Market segment	Server	Server
Series	AMD EPYC	no data
Power efficiency	20.03	no data
Architecture codename	Milan (2021−2023)	Emerald Rapids (2023)
Release date	15 March 2021 (3 years ago)	14 December 2023 (1 year ago)
Launch price (MSRP)	$4,995	$6,759

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7643 and Xeon Platinum 8558P 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)	48 (Octatetraconta-Core)
Threads	96	96
Base clock speed	2.3 GHz	2.7 GHz
Boost clock speed	3.6 GHz	4 GHz
Multiplier	23	no data
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	512 KB (per core)	2 MB (per core)
L3 cache	256 MB (shared)	260 MB (shared)
Chip lithography	7 nm+	Intel 7 nm
Die size	8x 81 mm2	2x 763 mm2
Maximum case temperature (TCase)	no data	81 °C
Number of transistors	33,200 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on EPYC 7643 and Xeon Platinum 8558P 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	2
Socket	SP3	FCLGA4677
Power consumption (TDP)	225 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7643 and Xeon Platinum 8558P. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
Speed Shift	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	-	+
Deep Learning Boost	-	+

Security technologies

EPYC 7643 and Xeon Platinum 8558P technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7643 and Xeon Platinum 8558P 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 EPYC 7643 and Xeon Platinum 8558P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5 @ 5600 MT/s (1 DPC)
Maximum memory size	4 TiB	4 TB
Max memory channels	no data	8
Maximum memory bandwidth	204.795 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7643 and Xeon Platinum 8558P.

PCIe version	4.0	5.0
PCI Express lanes	128	80

Pros & cons summary

---

Recency	15 March 2021	14 December 2023
Power consumption (TDP)	225 Watt	350 Watt

---

Should you still have questions on choice between EPYC 7643 and Xeon Platinum 8558P, 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.

---