Ultra 5 245K vs Xeon Silver 4123

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Aggregate performance score

Xeon Silver 4123
2018
8 cores / 16 threads, 105 Watt
9.41
Core Ultra 5 245K
2024
14 cores / 14 threads, 125 Watt
27.81
+196%

Core Ultra 5 245K outperforms Xeon Silver 4123 by a whopping 196% based on our aggregate benchmark results.

Primary details

Comparing Xeon Silver 4123 and Core Ultra 5 245K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking837176
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data74.65
Market segmentServerDesktop processor
Power efficiency8.1720.29
Architecture codenameno dataArrow Lake-S (2024−2025)
Release date1 January 2018 (6 years ago)24 October 2024 (recently)
Launch price (MSRP)no data$309

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon Silver 4123 and Core Ultra 5 245K 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)14 (Tetradeca-Core)
Threads1614
Base clock speed3 GHz4.2 GHz
Boost clock speed3.2 GHz5.2 GHz
Bus rateno data159 MHz
L1 cacheno data112 KB (per core)
L2 cacheno data3 MB (per core)
L3 cache11 MB24 MB (shared)
Chip lithography14 nm3 nm
Die sizeno data243 mm2
Number of transistorsno data17,800 million
64 bit support-+
Windows 11 compatibility-no data
Unlocked multiplier-+

Compatibility

Information on Xeon Silver 4123 and Core Ultra 5 245K 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 data1
SocketFCLGA36471851
Power consumption (TDP)105 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4123 and Core Ultra 5 245K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX-512no data
AES-NI++
AVX-+
vPro++
Enhanced SpeedStep (EIST)no data+
Speed Shift+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX++
SIPP-+
Turbo Boost Max 3.0-no data

Security technologies

Xeon Silver 4123 and Core Ultra 5 245K technologies aimed at improving security, for example, by protecting against hacks.

TXT++

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4123 and Core Ultra 5 245K are enumerated here.

VT-dno data+
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and Core Ultra 5 245K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR5
Maximum memory size512 GBno data
Max memory channels6no data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataArc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4123 and Core Ultra 5 245K.

PCIe version3.05.0
PCI Express lanes4820

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.

Xeon Silver 4123 9.41
Ultra 5 245K 27.81
+196%

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.

Xeon Silver 4123 14405
Ultra 5 245K 42561
+195%

Gaming performance

Pros & cons summary


Performance score 9.41 27.81
Recency 1 January 2018 24 October 2024
Physical cores 8 14
Threads 16 14
Chip lithography 14 nm 3 nm
Power consumption (TDP) 105 Watt 125 Watt

Xeon Silver 4123 has 14.3% more threads, and 19% lower power consumption.

Ultra 5 245K, on the other hand, has a 195.5% higher aggregate performance score, an age advantage of 6 years, 75% more physical cores, and a 366.7% more advanced lithography process.

The Core Ultra 5 245K is our recommended choice as it beats the Xeon Silver 4123 in performance tests.

Be aware that Xeon Silver 4123 is a server/workstation processor while Core Ultra 5 245K is a desktop one.


Should you still have questions on choice between Xeon Silver 4123 and Core Ultra 5 245K, ask them in Comments section, and we shall answer.

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Intel Xeon Silver 4123
Xeon Silver 4123
Intel Core Ultra 5 245K
Core Ultra 5 245K

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Community ratings

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Questions & comments

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