EPYC 9555 vs Atom E645CT

VS

Primary details

Comparing Atom E645CT and EPYC 9555 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
Architecture codenameStellarton (2010)Turin (2024)
Release date22 November 2010 (14 years ago)10 October 2024 (less than a year ago)
Launch price (MSRP)no data$9,826

Detailed specifications

Atom E645CT and EPYC 9555 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 cores1 (Single-Core)64 (Tetrahexaconta-Core)
Threads2128
Base clock speedno data3.2 GHz
Boost clock speed1 GHz4.4 GHz
L1 cache64 KB (per core)80 KB (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache0 KB256 MB (shared)
Chip lithography45 nm4 nm
Die size26 mm28x 70.6 mm2
Number of transistors47 million66,520 million
64 bit support-+
Windows 11 compatibility-no data

Compatibility

Information on Atom E645CT and EPYC 9555 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
SocketIntel BGA1466SP5
Power consumption (TDP)4 Watt360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom E645CT and EPYC 9555. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)+no data
Hyper-Threading Technology+no data
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Atom E645CT and EPYC 9555 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom E645CT and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR2DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel GMA 600N/A

Peripherals

Specifications and connection of peripherals supported by Atom E645CT and EPYC 9555.

PCIe versionno data5.0
PCI Express lanesno data128

Pros & cons summary


Recency 22 November 2010 10 October 2024
Physical cores 1 64
Threads 2 128
Chip lithography 45 nm 4 nm
Power consumption (TDP) 4 Watt 360 Watt

Atom E645CT has 8900% lower power consumption.

EPYC 9555, on the other hand, has an age advantage of 13 years, 6300% more physical cores and 6300% more threads, and a 1025% more advanced lithography process.

We couldn't decide between Atom E645CT and EPYC 9555. We've got no test results to judge.

Be aware that Atom E645CT is a notebook processor while EPYC 9555 is a server/workstation one.


Should you still have questions on choice between Atom E645CT and EPYC 9555, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Atom E645CT
Atom E645CT
AMD EPYC 9555
EPYC 9555

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3 1 vote

Rate Atom E645CT on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

No user ratings yet.

Rate EPYC 9555 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Atom E645CT or EPYC 9555, agree or disagree with our judgements, or report an error or mismatch.