AMD Ryzen 7 5800X vs AMD Ryzen 9 3900XT

Comparative analysis of AMD Ryzen 7 5800X 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 7 5800X

AMD Ryzen 9 3900XT

Differences

Reasons to consider the AMD Ryzen 7 5800X

CPU is newer: launch date 4 month(s) later
Around 25% better performance in PassMark - Single thread mark: 3446 vs 2748

Specifications (specs)
Launch date	5 Nov 2020 vs July 2020
Benchmarks
PassMark - Single thread mark	3446 vs 2748

Reasons to consider the AMD Ryzen 9 3900XT

4 more cores, run more applications at once: 12 vs 8
8 more threads: 24 vs 16
Around 50% 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 17% better performance in PassMark - CPU mark: 32738 vs 27910
Around 12% better performance in 3DMark Fire Strike - Physics Score: 8585 vs 7634

Specifications (specs)
Number of cores	12 vs 8
Number of threads	24 vs 16
L2 cache	6 MB vs 4 MB
L3 cache	64 MB vs 32 MB
Benchmarks
PassMark - CPU mark	32738 vs 27910
3DMark Fire Strike - Physics Score	8585 vs 7634

Compare benchmarks

CPU 1: AMD Ryzen 7 5800X
CPU 2: AMD Ryzen 9 3900XT

PassMark - Single thread mark

CPU 1

CPU 2

3446

2748

PassMark - CPU mark

CPU 1

CPU 2

27910

32738

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

7634

8585

Name	AMD Ryzen 7 5800X	AMD Ryzen 9 3900XT
PassMark - Single thread mark	3446	2748
PassMark - CPU mark	27910	32738
3DMark Fire Strike - Physics Score	7634	8585

Compare specifications (specs)

	AMD Ryzen 7 5800X	AMD Ryzen 9 3900XT
Essentials
Architecture codename	Zen 3	Zen 2
Launch date	5 Nov 2020	July 2020
Launch price (MSRP)	$449
OPN PIB	100-100000063WOF	100-100000277WOF
OPN Tray	100-000000063
Place in performance rating	518	623
Vertical segment	Desktop	Desktop
Performance
Base frequency	3.8 GHz	3.8 GHz
L1 cache	512 KB
L2 cache	4 MB	6 MB
L3 cache	32 MB	64 MB
Manufacturing process technology	7 nm	7 nm
Maximum core temperature	95 °C
Maximum frequency	4.7 GHz	4.7 GHz
Number of cores	8	12
Number of threads	16	24
Unlocked
Memory
ECC memory support
Max memory channels	2	2
Maximum memory bandwidth	47.68 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Sockets supported	AM4	AM4
Thermal Design Power (TDP)	105 Watt	105 Watt
Peripherals
Max number of PCIe lanes	20	20
PCI Express revision	4.0	4.0
PCIe configurations	1x16+x4, 2x8+x4, 1x8+2x4+x4
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™)