AMD EPYC 7H12 vs Intel Xeon Silver 4123

Price now no data
Games supported 99%
Intel Xeon Silver 4123
Intel Xeon Silver 4123
  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Price now 4165$
Games supported 100%

General info

Comparing Xeon Silver 4123 and EPYC 7H12 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance rating5382
Place by popularityno data29
Value for moneyno data11.74
Market segmentServerServer
Seriesno dataAMD EPYC
Architecture codenameno dataZen 2 (2019−2020)
Release date1 January 2018
(5 years old)
18 September 2019
(3 years old)
Current priceno data$4165
Value for money

To get the index we compare the characteristics of the processors and their cost, taking into account the cost of other processors.

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Technical specs

Xeon Silver 4123 and EPYC 7H12 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 cores8 (Octa-Core)64 (Tetrahexaconta-Core)
Base clock speed3 GHz2.6 GHz
Boost clock speed3.2 GHz3.3 GHz
L1 cacheno data96K (per core)
L2 cacheno data512K (per core)
L3 cache11 MB256 MB (shared)
Chip lithography14 nm7 nm, 14 nm
Die sizeno data192 mm2
Number of transistorsno data4,800 million
64 bit support-+
Windows 11 compatibility-+
Unlocked multiplier-+


Information on Xeon Silver 4123 and EPYC 7H12 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 (Multiprocessor)
Thermal design power (TDP)105 Watt280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4123 and EPYC 7H12. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX-512no data
AVXno data+
vPro+no data
Speed Shift+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+no data
Turbo Boost Max 3.0-no data

Security technologies

Xeon Silver 4123 and EPYC 7H12 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4123 and EPYC 7H12 are enumerated here.

AMD-Vno data+
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and EPYC 7H12. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR4 Eight-channel
Maximum memory size512 GB4 TiB
Max memory channels68
Maximum memory bandwidthno data204.763 GB/s
ECC memory support++


Specifications and connection of peripherals supported by Xeon Silver 4123 and EPYC 7H12.

PCIe version3.0no data
PCI Express lanes48no data

Benchmark performance

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

Overall 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.

Xeon Silver 4123 11.61
EPYC 7H12 81.23
  • 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.

Benchmark coverage: 67%

Xeon Silver 4123 14405
EPYC 7H12 100817

EPYC 7H12 outperforms Xeon Silver 4123 by 600% in Passmark.

Gaming performance

Advantages and disadvantages

Performance rating 11.61 81.23
Recency 1 January 2018 18 September 2019
Boost clock speed 0 3300
Base clock speed 0 2600
Chip lithography 14 nm 7 nm
Thermal design power (TDP) 105 Watt 280 Watt

Judging by the results of synthetic and gaming tests, Technical City recommends


Should you still have questions on choice between Xeon Silver 4123 and EPYC 7H12, ask them in Comments section, and we shall answer.

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User rating

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Questions and comments

Here you can ask a question about Xeon Silver 4123 or EPYC 7H12, agree or disagree with our judgements, or report an error or mismatch.