EPYC 9755 vs Pentium G645

Primary details

Comparing Pentium G645 and EPYC 9755 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2544	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	1.30	no data
Architecture codename	Sandy Bridge (2011−2013)	Turin (2024)
Release date	2 September 2012 (12 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$80	$12,984

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium G645 and EPYC 9755 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)	128
Threads	2	256
Base clock speed	2.9 GHz	2.7 GHz
Boost clock speed	2.9 GHz	4.1 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	3 MB (shared)	512 MB (shared)
Chip lithography	32 nm	4 nm
Die size	131 mm2	16x 70.6 mm2
Maximum core temperature	69 °C	no data
Number of transistors	504 million	133,040 million
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Pentium G645 and EPYC 9755 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	SP5
Power consumption (TDP)	65 Watt	500 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and EPYC 9755. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
FDI	+	no data
Fast Memory Access	+	no data
Precision Boost 2	no data	+

Security technologies

Pentium G645 and EPYC 9755 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium G645 and EPYC 9755 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 Pentium G645 and EPYC 9755. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	17 GB/s	no data

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 G645 and EPYC 9755 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and EPYC 9755.

PCIe version	2.0	5.0
PCI Express lanes	no data	128

Pros & cons summary

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Recency	2 September 2012	10 October 2024
Physical cores	2	128
Threads	2	256
Chip lithography	32 nm	4 nm
Power consumption (TDP)	65 Watt	500 Watt

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