Xeon Gold 6558Q vs Pentium G645

Primary details

Comparing Pentium G645 and Xeon Gold 6558Q processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2549	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Market segment	Desktop processor	Server
Power efficiency	1.31	no data
Architecture codename	Sandy Bridge (2011−2013)	no data
Release date	2 September 2012 (12 years ago)	1 October 2023 (1 year ago)
Launch price (MSRP)	$80	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium G645 and Xeon Gold 6558Q 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)	32 (Dotriaconta-Core)
Threads	2	64
Base clock speed	2.9 GHz	3.2 GHz
Boost clock speed	2.9 GHz	4.1 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	no data
L3 cache	3 MB (shared)	60 MB
Chip lithography	32 nm	Intel 7 nm
Die size	131 mm2	no data
Maximum core temperature	69 °C	66 °C
Number of transistors	504 million	no data
64 bit support	+	-
Windows 11 compatibility	-	no data

Compatibility

Information on Pentium G645 and Xeon Gold 6558Q 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	no data
Socket	FCLGA1155	FCLGA4677
Power consumption (TDP)	65 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and Xeon Gold 6558Q. 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	+	-
Enhanced SpeedStep (EIST)	+	no data
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 G645 and Xeon Gold 6558Q 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 G645 and Xeon Gold 6558Q are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium G645 and Xeon Gold 6558Q. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-5200
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	no data
Graphics max frequency	1.1 GHz	no data

Graphics interfaces

Available interfaces and connections of Pentium G645 and Xeon Gold 6558Q integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and Xeon Gold 6558Q.

PCIe version	2.0	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Recency	2 September 2012	1 October 2023
Physical cores	2	32
Threads	2	64
Power consumption (TDP)	65 Watt	350 Watt

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Should you still have questions on choice between Pentium G645 and Xeon Gold 6558Q, ask them in Comments section, and we shall answer.

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