EPYC 9745 vs Pentium G645

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Primary details

Comparing Pentium G645 and EPYC 9745 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2549not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.06no data
Market segmentDesktop processorServer
Power efficiency1.31no data
Architecture codenameSandy Bridge (2011−2013)Turin (2024)
Release date2 September 2012 (12 years ago)10 October 2024 (less than a year ago)
Launch price (MSRP)$80$12,141

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Pentium G645 and EPYC 9745 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 cores2 (Dual-core)128
Threads2256
Base clock speed2.9 GHz2.4 GHz
Boost clock speed2.9 GHz3.7 GHz
Bus rate5 GT/sno data
L1 cache64 KB (per core)80 KB (per core)
L2 cache256 KB (per core)1 MB (per core)
L3 cache3 MB (shared)256 MB (shared)
Chip lithography32 nm3 nm
Die size131 mm2no data
Maximum core temperature69 °Cno data
Number of transistors504 millionno data
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Pentium G645 and EPYC 9745 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 configuration12
SocketFCLGA1155SP5
Power consumption (TDP)65 Watt400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium G645 and EPYC 9745. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2no 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 2no data+

Security technologies

Pentium G645 and EPYC 9745 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 9745 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 9745. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5
Maximum memory size32 GBno data
Max memory channels2no data
Maximum memory bandwidth17 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics for 2nd Generation Intel ProcessorsN/A
Graphics max frequency1.1 GHzno data

Graphics interfaces

Available interfaces and connections of Pentium G645 and EPYC 9745 integrated GPUs.

Number of displays supported2no data

Peripherals

Specifications and connection of peripherals supported by Pentium G645 and EPYC 9745.

PCIe version2.05.0
PCI Express lanesno data128

Pros & cons summary


Recency 2 September 2012 10 October 2024
Physical cores 2 128
Threads 2 256
Chip lithography 32 nm 3 nm
Power consumption (TDP) 65 Watt 400 Watt

Pentium G645 has 515.4% lower power consumption.

EPYC 9745, on the other hand, has an age advantage of 12 years, 6300% more physical cores and 12700% more threads, and a 966.7% more advanced lithography process.

We couldn't decide between Pentium G645 and EPYC 9745. We've got no test results to judge.

Note that Pentium G645 is a desktop processor while EPYC 9745 is a server/workstation one.


Should you still have questions on choice between Pentium G645 and EPYC 9745, ask them in Comments section, and we shall answer.

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Intel Pentium G645
Pentium G645
AMD EPYC 9745
EPYC 9745

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