EPYC 7643 vs Celeron 420

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Aggregate performance score

Celeron 420
2007
1 core / 1 thread, 35 Watt
0.15
EPYC 7643
2021
48 cores / 96 threads, 225 Watt
47.88
+31820%

EPYC 7643 outperforms Celeron 420 by a whopping 31820% based on our aggregate benchmark results.

Primary details

Comparing Celeron 420 and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking332338
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data6.71
Market segmentDesktop processorServer
Seriesno dataAMD EPYC
Power efficiency0.4120.14
Architecture codenameConroe-L (2007−2008)Milan (2021−2023)
Release dateJune 2007 (17 years ago)12 January 2021 (3 years ago)
Launch price (MSRP)$23$4,995

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Celeron 420 and EPYC 7643 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)48 (Octatetraconta-Core)
Threads196
Base clock speed1.6 GHz2.3 GHz
Boost clock speed1.6 GHz3.6 GHz
Multiplierno data23
L1 cache64 KB3 MB
L2 cache512 KB24 MB
L3 cache0 KB256 MB (shared)
Chip lithography65 nm7 nm+
Die size77 mm28x 81 mm2
Maximum case temperature (TCase)60 °Cno data
Number of transistors105 million33,200 million
64 bit support++
Windows 11 compatibility-+
VID voltage range1V-1.3375Vno data

Compatibility

Information on Celeron 420 and EPYC 7643 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
SocketLGA775SP3
Power consumption (TDP)35 Watt225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 420 and EPYC 7643. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)-no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching-no data
FSB parity-no data

Security technologies

Celeron 420 and EPYC 7643 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 Celeron 420 and EPYC 7643 are enumerated here.

AMD-V-+
VT-d-no data
VT-x-no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 420 and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR4-3200
Maximum memory sizeno data4 TiB
Maximum memory bandwidthno data204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Celeron 420 and EPYC 7643.

PCIe versionno data4.0
PCI Express lanesno data128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Celeron 420 0.15
EPYC 7643 47.88
+31820%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Celeron 420 235
EPYC 7643 76050
+32262%

Gaming performance

Pros & cons summary


Performance score 0.15 47.88
Physical cores 1 48
Threads 1 96
Chip lithography 65 nm 7 nm
Power consumption (TDP) 35 Watt 225 Watt

Celeron 420 has 542.9% lower power consumption.

EPYC 7643, on the other hand, has a 31820% higher aggregate performance score, 4700% more physical cores and 9500% more threads, and a 828.6% more advanced lithography process.

The EPYC 7643 is our recommended choice as it beats the Celeron 420 in performance tests.

Note that Celeron 420 is a desktop processor while EPYC 7643 is a server/workstation one.


Should you still have questions on choice between Celeron 420 and EPYC 7643, ask them in Comments section, and we shall answer.

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Intel Celeron 420
Celeron 420
AMD EPYC 7643
EPYC 7643

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Community ratings

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


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Questions & comments

Here you can ask a question about Celeron 420 or EPYC 7643, agree or disagree with our judgements, or report an error or mismatch.