Intel Xeon Gold 6421N vs AMD EPYC 7543P

Comparative analysis of Intel Xeon Gold 6421N and AMD EPYC 7543P processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon Gold 6421N

AMD EPYC 7543P

Differences

Reasons to consider the Intel Xeon Gold 6421N

CPU is newer: launch date 1 year(s) 9 month(s) later
Around 25% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 30% lower typical power consumption: 185 Watt vs 240 Watt
Around 9% better performance in PassMark - Single thread mark: 2978 vs 2741

Specifications (specs)
Launch date	10 Jan 2023 vs 15 Mar 2021
L1 cache	80K (per core) vs 2 MB
Thermal Design Power (TDP)	185 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	2978 vs 2741

Reasons to consider the AMD EPYC 7543P

Around 3% higher clock speed: 3.7 GHz vs 3.6 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm+ vs 10 nm
262144x more L2 cache, more data can be stored in the L2 cache for quick access later
4473924.3x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 13% better performance in PassMark - CPU mark: 66687 vs 58797

Specifications (specs)
Maximum frequency	3.7 GHz vs 3.6 GHz
Manufacturing process technology	7 nm+ vs 10 nm
L2 cache	16 MB vs 2MB (per core)
L3 cache	256 MB vs 60MB
Benchmarks
PassMark - CPU mark	66687 vs 58797

Compare benchmarks

CPU 1: Intel Xeon Gold 6421N
CPU 2: AMD EPYC 7543P

PassMark - Single thread mark

CPU 1

CPU 2

2978

2741

PassMark - CPU mark

CPU 1

CPU 2

58797

66687

Name	Intel Xeon Gold 6421N	AMD EPYC 7543P
PassMark - Single thread mark	2978	2741
PassMark - CPU mark	58797	66687

Compare specifications (specs)

	Intel Xeon Gold 6421N	AMD EPYC 7543P
Essentials
Launch date	10 Jan 2023	15 Mar 2021
Launch price (MSRP)	$2368	$2730
Place in performance rating	189	188
Architecture codename		Zen 3
OPN PIB		100-100000341WOF
OPN Tray		100-000000341
Vertical segment		Server
Performance
Base frequency	1800 MHz	2.8 GHz
L1 cache	80K (per core)	2 MB
L2 cache	2MB (per core)	16 MB
L3 cache	60MB	256 MB
Manufacturing process technology	10 nm	7 nm+
Maximum case temperature (TCase)	85°C
Maximum frequency	3.6 GHz	3.7 GHz
Number of cores	32	32
Number of threads	64	64
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-4400 MHz, Eight-channel	DDR4-3200
Max memory channels		8
Maximum memory bandwidth		190.73 GB/s
Maximum memory size		4 TB
Compatibility
Max number of CPUs in a configuration	1
Sockets supported	4677	SP3
Thermal Design Power (TDP)	185 Watt	240 Watt
Configurable TDP		225-240 Watt
Socket Count		1P
Peripherals
PCIe configurations	Gen 5, 80 Lanes, (CPU only)
Max number of PCIe lanes		128
PCI Express revision		4.0
Advanced Technologies
AMD SenseMI
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)