Xeon Platinum 8558 vs Platinum 8558U

Primary details

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

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Architecture codename	Emerald Rapids	Emerald Rapids
Release date	1 October 2023 (less than a year ago)	1 October 2023 (less than a year ago)

Detailed specifications

Xeon Platinum 8558U and Xeon Platinum 8558 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 GHz	2.1 GHz
Boost clock speed	4 GHz	4 GHz
L1 cache	80 KB (per core)	80 KB (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	260 MB (shared)	260 MB (shared)
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	2x 763 mm2	2x 763 mm2
Maximum core temperature	78 °C	78 °C
Maximum case temperature (TCase)	78 °C	78 °C
64 bit support	+	+
Unlocked multiplier	No	No

Compatibility

Information on Xeon Platinum 8558U and Xeon Platinum 8558 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	FCLGA4677	FCLGA4677
Power consumption (TDP)	300 Watt	330 Watt

Technologies and extensions

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

Instruction set extensions	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Status	Launched	Launched

Security technologies

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

TXT	+	+
EDB	+	+
SGX	Yes with Intel® SPS	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8558U and Xeon Platinum 8558 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8558U and Xeon Platinum 8558. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5 @ 4800 MT/s (1 DPC)	DDR5 @ 5200 MT/s (1 DPC)
Maximum memory size	4 TB	4 TB
Max memory channels	8	8
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 Xeon Platinum 8558U and Xeon Platinum 8558.

PCIe version	5.0	5.0
PCI Express lanes	80	80

Pros & cons summary

---

Power consumption (TDP)

300 Watt

330 Watt

---

Should you still have questions on choice between Xeon Platinum 8558U and Xeon Platinum 8558, 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.

---