Intel Xeon Gold 6434 vs AMD EPYC 7643

Comparative analysis of Intel Xeon Gold 6434 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 Gold 6434

AMD EPYC 7643

Differences

Reasons to consider the Intel Xeon Gold 6434

CPU is newer: launch date 1 year(s) 9 month(s) later
Around 14% higher clock speed: 4.1 GHz vs 3.6 GHz
Around 23% lower typical power consumption: 195 Watt vs 240 Watt
Around 67% better performance in PassMark - Single thread mark: 3367 vs 2020

Specifications (specs)
Launch date	10 Jan 2023 vs 15 Mar 2021
Maximum frequency	4.1 GHz vs 3.6 GHz
Thermal Design Power (TDP)	195 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	3367 vs 2020

Reasons to consider the AMD EPYC 7643

40 more cores, run more applications at once: 48 vs 8
80 more threads: 96 vs 16
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm+ vs 10 nm
4.8x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
11.4x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 97% better performance in PassMark - CPU mark: 91554 vs 46362

Specifications (specs)
Number of cores	48 vs 8
Number of threads	96 vs 16
Manufacturing process technology	7 nm+ vs 10 nm
L1 cache	3 MB vs 80 KB (per core)
L2 cache	24 MB vs 2 MB (per core)
L3 cache	256 MB vs 22.5 MB
Benchmarks
PassMark - CPU mark	91554 vs 46362

Compare benchmarks

CPU 1: Intel Xeon Gold 6434
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

3367

2020

PassMark - CPU mark

CPU 1

CPU 2

46362

91554

Name	Intel Xeon Gold 6434	AMD EPYC 7643
PassMark - Single thread mark	3367	2020
PassMark - CPU mark	46362	91554

Compare specifications (specs)

	Intel Xeon Gold 6434	AMD EPYC 7643
Essentials
Launch date	10 Jan 2023	15 Mar 2021
Launch price (MSRP)	$2607	$4995
Place in performance rating	183	176
Architecture codename		Zen 3
OPN PIB		100-100000326WOF
OPN Tray		100-000000326
Vertical segment		Server
Performance
Base frequency	3.7 GHz	2.3 GHz
L1 cache	80 KB (per core)	3 MB
L2 cache	2 MB (per core)	24 MB
L3 cache	22.5 MB	256 MB
Manufacturing process technology	10 nm	7 nm+
Maximum case temperature (TCase)	64°C
Maximum frequency	4.1 GHz	3.6 GHz
Number of cores	8	48
Number of threads	16	96
Unlocked
Memory
ECC memory support
Supported memory types	DDR5	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	2
Sockets supported	4677	SP3
Thermal Design Power (TDP)	195 Watt	240 Watt
Configurable TDP		225-240 Watt
Socket Count		1P/2P
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™)