Intel Xeon Gold 6421N vs AMD Ryzen 5 PRO 7645

Comparative analysis of Intel Xeon Gold 6421N and AMD Ryzen 5 PRO 7645 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

Intel Xeon Gold 6421N

AMD Ryzen 5 PRO 7645

Differences

Reasons to consider the Intel Xeon Gold 6421N

26 more cores, run more applications at once: 32 vs 6
52 more threads: 64 vs 12
6.7x more L1 cache, more data can be stored in the L1 cache for quick access later
10.7x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 88% more L3 cache; more data can be stored in the L3 cache for quick access later
2.2x better performance in PassMark - CPU mark: 58797 vs 27106

Specifications (specs)
Number of cores	32 vs 6
Number of threads	64 vs 12
L1 cache	80K (per core) vs 64K (per core)
L2 cache	2MB (per core) vs 1MB (per core)
L3 cache	60MB vs 32MB (shared)
Benchmarks
PassMark - CPU mark	58797 vs 27106

Reasons to consider the AMD Ryzen 5 PRO 7645

CPU is newer: launch date 5 month(s) later
Around 42% higher clock speed: 5.1 GHz vs 3.6 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 10 nm
2.8x lower typical power consumption: 65 Watt vs 185 Watt
Around 31% better performance in PassMark - Single thread mark: 3901 vs 2978

Specifications (specs)
Launch date	13 Jun 2023 vs 10 Jan 2023
Maximum frequency	5.1 GHz vs 3.6 GHz
Manufacturing process technology	5 nm vs 10 nm
Thermal Design Power (TDP)	65 Watt vs 185 Watt
Benchmarks
PassMark - Single thread mark	3901 vs 2978

Compare benchmarks

CPU 1: Intel Xeon Gold 6421N
CPU 2: AMD Ryzen 5 PRO 7645

PassMark - Single thread mark

CPU 1

CPU 2

2978

3901

PassMark - CPU mark

CPU 1

CPU 2

58797

27106

Name	Intel Xeon Gold 6421N	AMD Ryzen 5 PRO 7645
PassMark - Single thread mark	2978	3901
PassMark - CPU mark	58797	27106

Compare specifications (specs)

	Intel Xeon Gold 6421N	AMD Ryzen 5 PRO 7645
Essentials
Launch date	10 Jan 2023	13 Jun 2023
Launch price (MSRP)	$2368
Place in performance rating	189	202
Performance
Base frequency	1800 MHz	3.8 GHz
L1 cache	80K (per core)	64K (per core)
L2 cache	2MB (per core)	1MB (per core)
L3 cache	60MB	32MB (shared)
Manufacturing process technology	10 nm	5 nm
Maximum case temperature (TCase)	85°C	61°C
Maximum frequency	3.6 GHz	5.1 GHz
Number of cores	32	6
Number of threads	64	12
Unlocked
Die size		71 mm²
Maximum core temperature		95°C
Transistor count		6,570 million
Memory
ECC memory support
Supported memory types	DDR5-4400 MHz, Eight-channel	DDR5-5200 MHz, Dual-channel
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	4677	AM5
Thermal Design Power (TDP)	185 Watt	65 Watt
Peripherals
PCIe configurations	Gen 5, 80 Lanes, (CPU only)	Gen 5, 24 Lanes, (CPU only)