Xeon D-2166NT vs EPYC 7251

VS

Aggregate performance score

EPYC 7251
2017
8 cores / 16 threads, 120 Watt
9.40
Xeon D-2166NT
2018
12 cores / 24 threads, 85 Watt
9.51
+1.2%

Xeon D-2166NT outperforms EPYC 7251 by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7251 and Xeon D-2166NT processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking813803
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.857.40
Market segmentServerServer
SeriesAMD EPYCIntel Xeon D
Power efficiency7.4110.59
Architecture codenameNaples (2017−2018)Skylake (server) (2017−2018)
Release date29 June 2017 (7 years ago)7 February 2018 (6 years ago)
Launch price (MSRP)$574$1,005

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon D-2166NT has 160% better value for money than EPYC 7251.

Detailed specifications

EPYC 7251 and Xeon D-2166NT 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)12 (Dodeca-Core)
Threads1624
Base clock speed2.1 GHz2 GHz
Boost clock speed2.9 GHz3 GHz
Bus typeno dataDMI 3.0
Bus rateno data4 × 8 GT/s
Multiplier2120
L1 cache96K (per core)768 KB
L2 cache512K (per core)12 MB
L3 cache32 MB (shared)16.5 MB
Chip lithography14 nm14 nm
Die size192 mm2no data
Number of transistors4,800 millionno data
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on EPYC 7251 and Xeon D-2166NT 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 (Uniprocessor)
SocketTR4FCBGA2518
Power consumption (TDP)120 Watt85 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7251 and Xeon D-2166NT. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® AVX2, Intel® AVX-512
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)no data+
QuickAssistno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Idle Statesno data+
Thermal Monitoring-+
Turbo Boost Max 3.0no data-

Security technologies

EPYC 7251 and Xeon D-2166NT technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
Secure Keyno data+
MPX-+
SGXno data-
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7251 and Xeon D-2166NT are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7251 and Xeon D-2166NT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Eight-channelDDR4
Maximum memory size2 TiB512 GB
Max memory channels84
Maximum memory bandwidth153.652 GB/s85.33 GB/s
ECC memory support++

Peripherals

Specifications and connection of peripherals supported by EPYC 7251 and Xeon D-2166NT.

PCIe version3.03.0
PCI Express lanes12832

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.

EPYC 7251 9.40
Xeon D-2166NT 9.51
+1.2%

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.

EPYC 7251 14935
Xeon D-2166NT 15105
+1.1%

Gaming performance

Pros & cons summary


Performance score 9.40 9.51
Recency 29 June 2017 7 February 2018
Physical cores 8 12
Threads 16 24
Power consumption (TDP) 120 Watt 85 Watt

Xeon D-2166NT has a 1.2% higher aggregate performance score, an age advantage of 7 months, 50% more physical cores and 50% more threads, and 41.2% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between EPYC 7251 and Xeon D-2166NT.


Should you still have questions on choice between EPYC 7251 and Xeon D-2166NT, ask them in Comments section, and we shall answer.

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AMD EPYC 7251
EPYC 7251
Intel Xeon D-2166NT
Xeon D-2166NT

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.


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Questions & comments

Here you can ask a question about EPYC 7251 or Xeon D-2166NT, agree or disagree with our judgements, or report an error or mismatch.