AMD Ryzen 7 PRO 7745 vs AMD EPYC 7642

Comparative analysis of AMD Ryzen 7 PRO 7745 and AMD EPYC 7642 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 7 PRO 7745

AMD EPYC 7642

Differences

Reasons to consider the AMD Ryzen 7 PRO 7745

CPU is newer: launch date 3 year(s) 10 month(s) later
Around 56% higher clock speed: 5.3 GHz vs 3.4 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 7 nm
3.5x lower typical power consumption: 65 Watt vs 225 Watt
Around 89% better performance in PassMark - Single thread mark: 4053 vs 2142

Specifications (specs)
Launch date	13 Jun 2023 vs 7 Aug 2019
Maximum frequency	5.3 GHz vs 3.4 GHz
Manufacturing process technology	5 nm vs 7 nm
Thermal Design Power (TDP)	65 Watt vs 225 Watt
Benchmarks
PassMark - Single thread mark	4053 vs 2142

Reasons to consider the AMD EPYC 7642

Processor is unlocked, an unlocked multiplier allows for easier overclocking
40 more cores, run more applications at once: 48 vs 8
80 more threads: 96 vs 16
9x more L1 cache, more data can be stored in the L1 cache for quick access later
3145728x 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
2.8x better performance in PassMark - CPU mark: 92995 vs 33344

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	48 vs 8
Number of threads	96 vs 16
L1 cache	4.5 MB vs 64K (per core)
L2 cache	24 MB vs 1MB (per core)
L3 cache	256 MB vs 32MB (shared)
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	92995 vs 33344

Compare benchmarks

CPU 1: AMD Ryzen 7 PRO 7745
CPU 2: AMD EPYC 7642

PassMark - Single thread mark

CPU 1

CPU 2

4053

2142

PassMark - CPU mark

CPU 1

CPU 2

33344

92995

Name	AMD Ryzen 7 PRO 7745	AMD EPYC 7642
PassMark - Single thread mark	4053	2142
PassMark - CPU mark	33344	92995

Compare specifications (specs)

	AMD Ryzen 7 PRO 7745	AMD EPYC 7642
Essentials
Launch date	13 Jun 2023	7 Aug 2019
Place in performance rating	130	145
Architecture codename		Zen 2
Vertical segment		Server
Performance
Base frequency	3.8 GHz	2.4 GHz
Die size	71 mm²
L1 cache	64K (per core)	4.5 MB
L2 cache	1MB (per core)	24 MB
L3 cache	32MB (shared)	256 MB
Manufacturing process technology	5 nm	7 nm
Maximum case temperature (TCase)	61°C
Maximum core temperature	95°C
Maximum frequency	5.3 GHz	3.4 GHz
Number of cores	8	48
Number of threads	16	96
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		190.7 GB/s
Maximum memory size		4 TB
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	AM5	SP3
Thermal Design Power (TDP)	65 Watt	225 Watt
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™)