AMD Ryzen 5 PRO 7645 vs AMD EPYC 7662

Comparative analysis of AMD Ryzen 5 PRO 7645 and AMD EPYC 7662 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.

AMD Ryzen 5 PRO 7645

AMD EPYC 7662

Differences

Reasons to consider the AMD Ryzen 5 PRO 7645

CPU is newer: launch date 3 year(s) 3 month(s) later
Around 55% higher clock speed: 5.1 GHz vs 3.3 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 7 nm, 14 nm
3.5x lower typical power consumption: 65 Watt vs 225 Watt
Around 90% better performance in PassMark - Single thread mark: 3968 vs 2089

Specifications (specs)
Launch date	13 Jun 2023 vs 19 Feb 2020
Maximum frequency	5.1 GHz vs 3.3 GHz
Manufacturing process technology	5 nm vs 7 nm, 14 nm
Thermal Design Power (TDP)	65 Watt vs 225 Watt
Benchmarks
PassMark - Single thread mark	3968 vs 2089

Reasons to consider the AMD EPYC 7662

58 more cores, run more applications at once: 64 vs 6
116 more threads: 128 vs 12
10.7x more L1 cache, more data can be stored in the L1 cache for quick access later
5592405.3x more L2 cache, more data can be stored in the L2 cache for quick access later
8388608x more L3 cache, more data can be stored in the L3 cache for quick access later
3.5x better performance in PassMark - CPU mark: 97178 vs 27610

Specifications (specs)
Number of cores	64 vs 6
Number of threads	128 vs 12
L1 cache	4 MB vs 64K (per core)
L2 cache	32 MB vs 1MB (per core)
L3 cache	256 MB vs 32MB (shared)
Benchmarks
PassMark - CPU mark	97178 vs 27610

Compare benchmarks

CPU 1: AMD Ryzen 5 PRO 7645
CPU 2: AMD EPYC 7662

PassMark - Single thread mark

CPU 1

CPU 2

3968

2089

PassMark - CPU mark

CPU 1

CPU 2

27610

97178

Name	AMD Ryzen 5 PRO 7645	AMD EPYC 7662
PassMark - Single thread mark	3968	2089
PassMark - CPU mark	27610	97178

Compare specifications (specs)

	AMD Ryzen 5 PRO 7645	AMD EPYC 7662
Essentials
Launch date	13 Jun 2023	19 Feb 2020
Place in performance rating	172	187
Architecture codename		Zen 3
OPN PIB		100-100000137WOF
OPN Tray		100-000000137
Vertical segment		Server
Performance
Base frequency	3.8 GHz	2.0 GHz
Die size	71 mm²
L1 cache	64K (per core)	4 MB
L2 cache	1MB (per core)	32 MB
L3 cache	32MB (shared)	256 MB
Manufacturing process technology	5 nm	7 nm, 14 nm
Maximum case temperature (TCase)	61°C
Maximum core temperature	95°C
Maximum frequency	5.1 GHz	3.3 GHz
Number of cores	6	64
Number of threads	12	128
Transistor count	6,570 million
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-5200 MHz, Dual-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	AM5	SP3
Thermal Design Power (TDP)	65 Watt	225 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 5, 24 Lanes, (CPU only)	x16, x8
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™)