AMD Ryzen 9 5900 vs AMD Ryzen 9 3900XT

Comparative analysis of AMD Ryzen 9 5900 and AMD Ryzen 9 3900XT 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, 3DMark Fire Strike - Physics Score.

AMD Ryzen 9 5900

AMD Ryzen 9 3900XT

Differences

Reasons to consider the AMD Ryzen 9 5900

CPU is newer: launch date 6 month(s) later
Around 62% lower typical power consumption: 65 Watt vs 105 Watt
Around 26% better performance in PassMark - Single thread mark: 3449 vs 2748
Around 5% better performance in PassMark - CPU mark: 34392 vs 32738

Specifications (specs)
Launch date	12 Jan 2021 vs July 2020
Thermal Design Power (TDP)	65 Watt vs 105 Watt
Benchmarks
PassMark - Single thread mark	3449 vs 2748
PassMark - CPU mark	34392 vs 32738

Reasons to consider the AMD Ryzen 9 3900XT

Processor is unlocked, an unlocked multiplier allows for easier overclocking

Unlocked	Unlocked vs Locked

Compare benchmarks

CPU 1: AMD Ryzen 9 5900
CPU 2: AMD Ryzen 9 3900XT

PassMark - Single thread mark

CPU 1

CPU 2

3449

2748

PassMark - CPU mark

CPU 1

CPU 2

34392

32738

Name	AMD Ryzen 9 5900	AMD Ryzen 9 3900XT
PassMark - Single thread mark	3449	2748
PassMark - CPU mark	34392	32738
3DMark Fire Strike - Physics Score		8585

Compare specifications (specs)

	AMD Ryzen 9 5900	AMD Ryzen 9 3900XT
Essentials
Architecture codename	Zen 3	Zen 2
Launch date	12 Jan 2021	July 2020
OPN Tray	100-000000062
Place in performance rating	205	623
Vertical segment	Desktop	Desktop
OPN PIB		100-100000277WOF
Performance
Base frequency	3.0 GHz	3.8 GHz
L1 cache	768 KB
L2 cache	6 MB	6 MB
L3 cache	64 MB	64 MB
Manufacturing process technology	7 nm	7 nm
Maximum frequency	4.7 GHz	4.7 GHz
Number of cores	12	12
Number of threads	24	24
Unlocked
Memory
ECC memory support
Max memory channels	2	2
Maximum memory bandwidth	51.196 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Sockets supported	FP6	AM4
Thermal Design Power (TDP)	65 Watt	105 Watt
Peripherals
PCI Express revision	4.0	4.0
Max number of PCIe lanes		20
Advanced Technologies
AMD SenseMI
AMD StoreMI technology
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™)