Xeon Platinum 8558 vs Pentium G645T

Primary details

Comparing Pentium G645T and Xeon Platinum 8558 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2629	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	2.08	no data
Architecture codename	Sandy Bridge (2011−2013)	Emerald Rapids (2023)
Release date	2 September 2012 (12 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	no data	$4,650

Detailed specifications

Pentium G645T 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	2 (Dual-core)	48 (Octatetraconta-Core)
Threads	2	96
Base clock speed	2.5 GHz	2.1 GHz
Boost clock speed	2.5 GHz	4 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	256 KB (per core)	2 MB (per core)
L3 cache	3 MB (shared)	260 MB (shared)
Chip lithography	32 nm	Intel 7 nm
Die size	131 mm2	2x 763 mm2
Maximum core temperature	65 °C	no data
Maximum case temperature (TCase)	no data	78 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Pentium G645T 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	FCLGA1155	FCLGA4677
Power consumption (TDP)	35 Watt	330 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645T and Xeon Platinum 8558. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
FDI	+	no data
Fast Memory Access	+	no data
Deep Learning Boost	-	+

Security technologies

Pentium G645T and Xeon Platinum 8558 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G645T and Xeon Platinum 8558 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G645T and Xeon Platinum 8558. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5 @ 5200 MT/s (1 DPC)
Maximum memory size	32 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	17 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	N/A
Graphics max frequency	1.1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium G645T and Xeon Platinum 8558 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Pentium G645T and Xeon Platinum 8558.

PCIe version	2.0	5.0
PCI Express lanes	16	80

Pros & cons summary

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Recency	2 September 2012	14 December 2023
Physical cores	2	48
Threads	2	96
Power consumption (TDP)	35 Watt	330 Watt

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