AMD Ryzen 5 PRO 7645 vs AMD EPYC 7351

Comparative analysis of AMD Ryzen 5 PRO 7645 and AMD EPYC 7351 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Ryzen 5 PRO 7645

AMD EPYC 7351

Differences

Reasons to consider the AMD Ryzen 5 PRO 7645

CPU is newer: launch date 6 year(s) 0 month(s) later
Around 76% higher clock speed: 5.1 GHz vs 2.9 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 14 nm
2.6x lower typical power consumption: 65 Watt vs 155/170 Watt
2.1x better performance in PassMark - Single thread mark: 3615 vs 1747

Specifications (specs)
Launch date	13 Jun 2023 vs June 2017
Maximum frequency	5.1 GHz vs 2.9 GHz
Manufacturing process technology	5 nm vs 14 nm
Thermal Design Power (TDP)	65 Watt vs 155/170 Watt
Benchmarks
PassMark - Single thread mark	3615 vs 1747

Reasons to consider the AMD EPYC 7351

Processor is unlocked, an unlocked multiplier allows for easier overclocking
10 more cores, run more applications at once: 16 vs 6
20 more threads: 32 vs 12
4x more L1 cache, more data can be stored in the L1 cache for quick access later
1398101.3x more L2 cache, more data can be stored in the L2 cache for quick access later
2097152x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 10% better performance in PassMark - CPU mark: 25431 vs 23147

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	16 vs 6
Number of threads	32 vs 12
L1 cache	96 KB (per core) vs 64K (per core)
L2 cache	512 KB (per core) vs 1MB (per core)
L3 cache	64 MB vs 32MB (shared)
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	25431 vs 23147

Compare benchmarks

CPU 1: AMD Ryzen 5 PRO 7645
CPU 2: AMD EPYC 7351

PassMark - Single thread mark

CPU 1

CPU 2

3615

1747

PassMark - CPU mark

CPU 1

CPU 2

23147

25431

Name	AMD Ryzen 5 PRO 7645	AMD EPYC 7351
PassMark - Single thread mark	3615	1747
PassMark - CPU mark	23147	25431
Geekbench 4 - Single Core		3547
Geekbench 4 - Multi-Core		23587

Compare specifications (specs)

	AMD Ryzen 5 PRO 7645	AMD EPYC 7351
Essentials
Launch date	13 Jun 2023	June 2017
Place in performance rating	296	261
Architecture codename		Zen
Family		AMD EPYC
Series		AMD EPYC 7000 Series
Vertical segment		Server
Performance
Base frequency	3.8 GHz	2.4 GHz
Die size	71 mm²	192 mm
L1 cache	64K (per core)	96 KB (per core)
L2 cache	1MB (per core)	512 KB (per core)
L3 cache	32MB (shared)	64 MB
Manufacturing process technology	5 nm	14 nm
Maximum case temperature (TCase)	61°C
Maximum core temperature	95°C
Maximum frequency	5.1 GHz	2.9 GHz
Number of cores	6	16
Number of threads	12	32
Transistor count	6,570 million	4800 million
Unlocked
64 bit support
Memory
ECC memory support
Supported memory types	DDR5-5200 MHz, Dual-channel	DDR4
Max memory channels		8
Maximum memory bandwidth		307/341 GB/s
Supported memory frequency		2400/2666 MHz
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	AM5	TR4
Thermal Design Power (TDP)	65 Watt	155/170 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 5, 24 Lanes, (CPU only)
PCI Express revision		x128
Virtualization
AMD Virtualization (AMD-V™)