AMD Ryzen 9 3900XT vs AMD Ryzen 9 3950X

Comparative analysis of AMD Ryzen 9 3900XT and AMD Ryzen 9 3950X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD Ryzen 9 3900XT

AMD Ryzen 9 3950X

Differences

Reasons to consider the AMD Ryzen 9 3900XT

CPU is newer: launch date 7 month(s) later
Around 2% better performance in PassMark - Single thread mark: 2746 vs 2705

Specifications (specs)
Launch date	July 2020 vs 25 Nov 2019
Benchmarks
PassMark - Single thread mark	2746 vs 2705

Reasons to consider the AMD Ryzen 9 3950X

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
Around 19% better performance in PassMark - CPU mark: 38750 vs 32670
Around 26% better performance in 3DMark Fire Strike - Physics Score: 10742 vs 8546

Specifications (specs)
Number of cores	16 vs 12
Number of threads	32 vs 24
L2 cache	8 MB vs 6 MB
Benchmarks
PassMark - CPU mark	38750 vs 32670
3DMark Fire Strike - Physics Score	10742 vs 8546

Compare benchmarks

CPU 1: AMD Ryzen 9 3900XT
CPU 2: AMD Ryzen 9 3950X

PassMark - Single thread mark

CPU 1

CPU 2

2746

2705

PassMark - CPU mark

CPU 1

CPU 2

32670

38750

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8546

10742

Name	AMD Ryzen 9 3900XT	AMD Ryzen 9 3950X
PassMark - Single thread mark	2746	2705
PassMark - CPU mark	32670	38750
3DMark Fire Strike - Physics Score	8546	10742
Geekbench 4 - Single Core		1296
Geekbench 4 - Multi-Core		14150

Compare specifications (specs)

	AMD Ryzen 9 3900XT	AMD Ryzen 9 3950X
Essentials
Architecture codename	Zen 2	Zen 2
Launch date	July 2020	25 Nov 2019
OPN PIB	100-100000277WOF	100-100000051WOF
Place in performance rating	595	586
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$749
OPN Tray		100-000000051
Performance
Base frequency	3.8 GHz	3.5 GHz
L2 cache	6 MB	8 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	16
Number of threads	24	32
Unlocked
64 bit support
L1 cache		1 MB
Memory
ECC memory support
Max memory channels	2	2
Maximum memory size	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	40
PCI Express revision	4.0	4.0