AMD Ryzen 9 3900XT vs AMD Ryzen 9 3800X

Comparative analysis of AMD Ryzen 9 3900XT and AMD Ryzen 9 3800X 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 3900XT

AMD Ryzen 9 3800X

Differences

Reasons to consider the AMD Ryzen 9 3900XT

CPU is newer: launch date 7 month(s) later
2097152x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 19% lower typical power consumption: 105 Watt vs 125 Watt
Around 1% better performance in PassMark - Single thread mark: 2748 vs 2718
Around 41% better performance in PassMark - CPU mark: 32738 vs 23174

Specifications (specs)
Launch date	July 2020 vs December 2019
L3 cache	64 MB vs 32MB
Thermal Design Power (TDP)	105 Watt vs 125 Watt
Benchmarks
PassMark - Single thread mark	2748 vs 2718
PassMark - CPU mark	32738 vs 23174

Reasons to consider the AMD Ryzen 9 3800X

4 more cores, run more applications at once: 16 vs 12
8 more threads: 32 vs 24
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later

Number of cores	16 vs 12
Number of threads	32 vs 24
L2 cache	512K (per core) vs 6 MB

Compare benchmarks

CPU 1: AMD Ryzen 9 3900XT
CPU 2: AMD Ryzen 9 3800X

PassMark - Single thread mark

CPU 1

CPU 2

2748

2718

PassMark - CPU mark

CPU 1

CPU 2

32738

23174

Name	AMD Ryzen 9 3900XT	AMD Ryzen 9 3800X
PassMark - Single thread mark	2748	2718
PassMark - CPU mark	32738	23174
3DMark Fire Strike - Physics Score	8585

Compare specifications (specs)

	AMD Ryzen 9 3900XT	AMD Ryzen 9 3800X
Essentials
Architecture codename	Zen 2	Zen 2
Launch date	July 2020	December 2019
OPN PIB	100-100000277WOF
Place in performance rating	623	556
Vertical segment	Desktop	Desktop
Performance
Base frequency	3.8 GHz	3.9 GHz
L2 cache	6 MB	512K (per core)
L3 cache	64 MB	32MB
Manufacturing process technology	7 nm
Maximum frequency	4.7 GHz	4.7 GHz
Number of cores	12	16
Number of threads	24	32
Unlocked
64 bit support
Front-side bus (FSB)		7 nm
L1 cache		96K (per core)
Transistor count		19,200 million
Memory
ECC memory support
Max memory channels	2
Maximum memory size	128 GB
Supported memory types	DDR4-3200	DDR4
Compatibility
Sockets supported	AM4	AM4
Thermal Design Power (TDP)	105 Watt	125 Watt
Peripherals
Max number of PCIe lanes	20
PCI Express revision	4.0
Advanced Technologies
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™)