Ultra 9 285K vs Xeon Silver 4108

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Aggregate performance score

Xeon Silver 4108
2017
8 cores / 16 threads, 85 Watt
5.82
Core Ultra 9 285K
2024
24 cores / 24 threads, 125 Watt
43.04
+640%

Core Ultra 9 285K outperforms Xeon Silver 4108 by a whopping 640% based on our aggregate benchmark results.

Primary details

Comparing Xeon Silver 4108 and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking113258
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation6.1870.24
Market segmentServerDesktop processor
SeriesIntel Xeon Silverno data
Power efficiency6.2431.40
Architecture codenameSkylake (server) (2017−2019)Arrow Lake-S (2024−2025)
Release date11 July 2017 (7 years ago)24 October 2024 (recently)
Launch price (MSRP)$417$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 9 285K has 1037% better value for money than Xeon Silver 4108.

Detailed specifications

Xeon Silver 4108 and Core Ultra 9 285K 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)24 (Tetracosa-Core)
Threads1624
Base clock speed1.8 GHz3.7 GHz
Boost clock speed3 GHz5.7 GHz
Bus rateno data250 MHz
Multiplier18no data
L1 cache512 KB112 KB (per core)
L2 cache8 MB3 MB (per core)
L3 cache11 MB36 MB (shared)
Chip lithography14 nm3 nm
Die sizeno data243 mm2
Maximum core temperature77 °Cno data
Number of transistorsno data17,800 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier-+

Compatibility

Information on Xeon Silver 4108 and Core Ultra 9 285K 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 configuration2 (Multiprocessor)1
SocketFCLGA36471851
Power consumption (TDP)85 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Silver 4108 and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512no data
AES-NI++
AVX++
vPro++
Enhanced SpeedStep (EIST)++
Speed Shift+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX++
Turbo Boost Max 3.0-no data

Security technologies

Xeon Silver 4108 and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Silver 4108 and Core Ultra 9 285K are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4108 and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR5 Depends on motherboard
Maximum memory size768 GBno data
Max memory channels6no data
Maximum memory bandwidth115.212 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataArc Xe-2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon Silver 4108 and Core Ultra 9 285K.

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 4108 5.82
Ultra 9 285K 43.04
+640%

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 4108 8909
Ultra 9 285K 65873
+639%

Gaming performance

Pros & cons summary


Performance score 5.82 43.04
Recency 11 July 2017 24 October 2024
Physical cores 8 24
Threads 16 24
Chip lithography 14 nm 3 nm
Power consumption (TDP) 85 Watt 125 Watt

Xeon Silver 4108 has 47.1% lower power consumption.

Ultra 9 285K, on the other hand, has a 639.5% higher aggregate performance score, an age advantage of 7 years, 200% more physical cores and 50% more threads, and a 366.7% more advanced lithography process.

The Core Ultra 9 285K is our recommended choice as it beats the Xeon Silver 4108 in performance tests.

Be aware that Xeon Silver 4108 is a server/workstation processor while Core Ultra 9 285K is a desktop one.


Should you still have questions on choice between Xeon Silver 4108 and Core Ultra 9 285K, ask them in Comments section, and we shall answer.

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


Intel Xeon Silver 4108
Xeon Silver 4108
Intel Core Ultra 9 285K
Core Ultra 9 285K

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Community ratings

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


2.1 16 votes

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3.5 41 vote

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Questions & comments

Here you can ask a question about Xeon Silver 4108 or Core Ultra 9 285K, agree or disagree with our judgements, or report an error or mismatch.