Xeon Gold 6421N vs EPYC 9654

Aggregate performance score

EPYC 9654
2022
96 cores / 192 threads, 360 Watt
75.70
+104%
Xeon Gold 6421N
2023
32 cores / 64 threads, 185 Watt
37.02

EPYC 9654 outperforms Xeon Gold 6421N by a whopping 104% based on our aggregate benchmark results.

Primary details

Comparing EPYC 9654 and Xeon Gold 6421N processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking690
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.3644.63
Market segmentServerServer
SeriesAMD EPYCno data
Power efficiency19.9018.94
Architecture codenameGenoa (2022−2023)Sapphire Rapids (2023−2024)
Release date10 November 2022 (2 years ago)10 January 2023 (1 year ago)
Launch price (MSRP)$11,805$2,368

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon Gold 6421N has 3182% better value for money than EPYC 9654.

Detailed specifications

EPYC 9654 and Xeon Gold 6421N 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 cores9632 (Dotriaconta-Core)
Threads19264
Base clock speed2.4 GHz1.8 GHz
Boost clock speed3.7 GHz3.6 GHz
Multiplier24no data
L1 cache64K (per core)80K (per core)
L2 cache1 MB (per core)2 MB (per core)
L3 cache384 MB (shared)60 MB
Chip lithography5 nm, 6 nmIntel 7 nm
Die size12x 72 mm2no data
Maximum case temperature (TCase)no data85 °C
Number of transistors78,840 millionno data
64 bit support++

Compatibility

Information on EPYC 9654 and Xeon Gold 6421N 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 configuration21
SocketSP5FCLGA4677
Power consumption (TDP)360 Watt185 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 9654 and Xeon Gold 6421N. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)no data+
Speed Shiftno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Precision Boost 2+no data
Deep Learning Boost-+

Security technologies

EPYC 9654 and Xeon Gold 6421N technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
SGXno dataYes with Intel® SPS
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 9654 and Xeon Gold 6421N 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 9654 and Xeon Gold 6421N. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-4800DDR5-4400
Maximum memory size6 TiB4 TB
Max memory channelsno data8
Maximum memory bandwidth460.8 GB/sno data
ECC memory support-+

Peripherals

Specifications and connection of peripherals supported by EPYC 9654 and Xeon Gold 6421N.

PCIe version5.05
PCI Express lanes12880

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 9654 75.70
+104%
Xeon Gold 6421N 37.02

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 9654 120246
+105%
Xeon Gold 6421N 58797

Gaming performance

Pros & cons summary


Performance score 75.70 37.02
Recency 10 November 2022 10 January 2023
Physical cores 96 32
Threads 192 64
Power consumption (TDP) 360 Watt 185 Watt

EPYC 9654 has a 104.5% higher aggregate performance score, and 200% more physical cores and 200% more threads.

Xeon Gold 6421N, on the other hand, has an age advantage of 2 months, and 94.6% lower power consumption.

The EPYC 9654 is our recommended choice as it beats the Xeon Gold 6421N in performance tests.


Should you still have questions on choice between EPYC 9654 and Xeon Gold 6421N, ask them in Comments section, and we shall answer.

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AMD EPYC 9654
EPYC 9654
Intel Xeon Gold 6421N
Xeon Gold 6421N

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Community ratings

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Questions & comments

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