EPYC 9755 vs Phenom II X4 X940 BE

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Primary details

Comparing Phenom II X4 X940 BE and EPYC 9755 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopServer
Series4x AMD Phenom IIno data
Architecture codenameChamplain (2010−2011)Turin (2024)
Release date1 January 2011 (13 years ago)10 October 2024 (recently)
Launch price (MSRP)no data$12,984

Detailed specifications

Phenom II X4 X940 BE 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 cores4 (Quad-Core)128
Threads4256
Base clock speedno data2.7 GHz
Boost clock speed2.4 GHz4.1 GHz
Bus rate3600 MHzno data
L1 cache256 KB80 KB (per core)
L2 cache2 MB1 MB (per core)
L3 cacheno data512 MB (shared)
Chip lithography45 nm4 nm
Die sizeno data16x 70.6 mm2
Number of transistorsno data133,040 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Phenom II X4 X940 BE 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 configurationno data2
SocketS1SP5
Power consumption (TDP)45 Watt500 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X4 X940 BE and EPYC 9755. You'll probably need this information if you require some particular technology.

Instruction set extensionsHyperTransport 3.0, Enhanced Virus Protection, AMD64, SSE4A, unlocked multiplierno data
AES-NI-+
AVX-+
VirusProtect+-
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 X940 BE and EPYC 9755 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 X940 BE and EPYC 9755. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 X940 BE and EPYC 9755.

PCIe versionno data5.0
PCI Express lanesno data128

Pros & cons summary


Recency 1 January 2011 10 October 2024
Physical cores 4 128
Threads 4 256
Chip lithography 45 nm 4 nm
Power consumption (TDP) 45 Watt 500 Watt

Phenom II X4 X940 BE has 1011.1% lower power consumption.

EPYC 9755, on the other hand, has an age advantage of 13 years, 3100% more physical cores and 6300% more threads, and a 1025% more advanced lithography process.

We couldn't decide between Phenom II X4 X940 BE and EPYC 9755. We've got no test results to judge.

Be aware that Phenom II X4 X940 BE is a notebook processor while EPYC 9755 is a server/workstation one.


Should you still have questions on choice between Phenom II X4 X940 BE and EPYC 9755, ask them in Comments section, and we shall answer.

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AMD Phenom II X4 X940 BE
Phenom II X4 X940 BE
AMD EPYC 9755
EPYC 9755

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Community ratings

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