Intel Xeon w5-2455X vs AMD EPYC 7643

Comparative analysis of Intel Xeon w5-2455X and AMD EPYC 7643 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 w5-2455X

AMD EPYC 7643

Differences

Reasons to consider the Intel Xeon w5-2455X

CPU is newer: launch date 1 year(s) 11 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 28% higher clock speed: 4.6 GHz vs 3.6 GHz
Around 20% lower typical power consumption: 200 Watt vs 240 Watt
Around 82% better performance in PassMark - Single thread mark: 3493 vs 1915

Specifications (specs)
Launch date	15 Feb 2023 vs 15 Mar 2021
Unlocked	Unlocked vs Locked
Maximum frequency	4.6 GHz vs 3.6 GHz
Thermal Design Power (TDP)	200 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	3493 vs 1915

Reasons to consider the AMD EPYC 7643

36 more cores, run more applications at once: 48 vs 12
72 more threads: 96 vs 24
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm+ vs 10 nm
3.2x more L1 cache, more data can be stored in the L1 cache for quick access later
1048576x more L2 cache, more data can be stored in the L2 cache for quick access later
8947848.5x more L3 cache, more data can be stored in the L3 cache for quick access later
2.3x better performance in PassMark - CPU mark: 88348 vs 37812

Specifications (specs)
Number of cores	48 vs 12
Number of threads	96 vs 24
Manufacturing process technology	7 nm+ vs 10 nm
L1 cache	3 MB vs 80K (per core)
L2 cache	24 MB vs 2MB (per core)
L3 cache	256 MB vs 30MB
Benchmarks
PassMark - CPU mark	88348 vs 37812

Compare benchmarks

CPU 1: Intel Xeon w5-2455X
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

3493

1915

PassMark - CPU mark

CPU 1

CPU 2

37812

88348

Name	Intel Xeon w5-2455X	AMD EPYC 7643
PassMark - Single thread mark	3493	1915
PassMark - CPU mark	37812	88348

Compare specifications (specs)

	Intel Xeon w5-2455X	AMD EPYC 7643
Essentials
Launch date	15 Feb 2023	15 Mar 2021
Launch price (MSRP)	$1039	$4995
Place in performance rating	221	224
Architecture codename		Zen 3
OPN PIB		100-100000326WOF
OPN Tray		100-000000326
Vertical segment		Server
Performance
Base frequency	3.2 GHz	2.3 GHz
L1 cache	80K (per core)	3 MB
L2 cache	2MB (per core)	24 MB
L3 cache	30MB	256 MB
Manufacturing process technology	10 nm	7 nm+
Maximum case temperature (TCase)	77°C
Maximum frequency	4.6 GHz	3.6 GHz
Number of cores	12	48
Number of threads	24	96
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-4800 MHz, Quad-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)	200 Watt	240 Watt
Configurable TDP		225-240 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 5, 64 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™)