AMD EPYC 8434P vs AMD EPYC 7551

Comparative analysis of AMD EPYC 8434P and AMD EPYC 7551 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 EPYC 8434P

AMD EPYC 7551

Differences

Reasons to consider the AMD EPYC 8434P

CPU is newer: launch date 6 year(s) 3 month(s) later
16 more cores, run more applications at once: 48 vs 32
32 more threads: 96 vs 64
Around 3% higher clock speed: 3.1 GHz vs 3 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 5 nm vs 14 nm
3x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 37% better performance in PassMark - Single thread mark: 2448 vs 1789
Around 15% better performance in PassMark - CPU mark: 66490 vs 57865

Specifications (specs)
Launch date	18 Sep 2023 vs June 2017
Number of cores	48 vs 32
Number of threads	96 vs 64
Maximum frequency	3.1 GHz vs 3 GHz
Manufacturing process technology	5 nm vs 14 nm
L2 cache	1 MB (per core) vs 512 KB (per core)
L3 cache	128 MB (shared) vs 64 MB
Benchmarks
PassMark - Single thread mark	2448 vs 1789
PassMark - CPU mark	66490 vs 57865

Reasons to consider the AMD EPYC 7551

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 11% lower typical power consumption: 180 Watt vs 200 Watt

Unlocked	Unlocked vs Locked
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	180 Watt vs 200 Watt

Compare benchmarks

CPU 1: AMD EPYC 8434P
CPU 2: AMD EPYC 7551

PassMark - Single thread mark

CPU 1

CPU 2

2448

1789

PassMark - CPU mark

CPU 1

CPU 2

66490

57865

Name	AMD EPYC 8434P	AMD EPYC 7551
PassMark - Single thread mark	2448	1789
PassMark - CPU mark	66490	57865
Geekbench 4 - Single Core		2956
Geekbench 4 - Multi-Core		20125

Compare specifications (specs)

	AMD EPYC 8434P	AMD EPYC 7551
Essentials
Launch date	18 Sep 2023	June 2017
Launch price (MSRP)	$2700
Place in performance rating	253	258
Architecture codename		Zen
Family		AMD EPYC
Price now		$3,813.99
Series		AMD EPYC 7000 Series
Value for money (0-100)		1.43
Vertical segment		Server
Performance
Base frequency	2.5 GHz	2 GHz
Die size	4x 73 mm²	192 mm
L1 cache	64 KB (per core)	96 KB (per core)
L2 cache	1 MB (per core)	512 KB (per core)
L3 cache	128 MB (shared)	64 MB
Manufacturing process technology	5 nm	14 nm
Maximum case temperature (TCase)	75°C
Maximum frequency	3.1 GHz	3 GHz
Number of cores	48	32
Number of threads	96	64
Transistor count	35,500 million	4800 million
Unlocked
64 bit support
Memory
ECC memory support
Supported memory types	DDR5	DDR4
Max memory channels		8
Maximum memory bandwidth		341 GB/s
Supported memory frequency		2666 MHz
Compatibility
Configurable TDP	155-225 Watt
Max number of CPUs in a configuration	1	2
Sockets supported	SP6	TR4
Thermal Design Power (TDP)	200 Watt	180 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 5, 96 Lanes, (CPU only)
PCI Express revision		x128
Virtualization
AMD Virtualization (AMD-V™)