How do the scores compare?

AMD Ryzen 7 5800X3D scores 57.9/100 overall; AMD Ryzen 9 3900X scores 55.3/100. AMD Ryzen 7 5800X3D wins 4 individual spec rows, AMD Ryzen 9 3900X wins 11.

What are the main differences between the AMD Ryzen 7 5800X3D and the AMD Ryzen 9 3900X?

AMD Ryzen 7 5800X3D advantages: Stronger Single-core score: 48 vs 38; Stronger gaming score: 88 vs 78; 50% higher L3 cache: 96 MB vs 64 MB; 23% higher Geekbench 6 (single): 1,900 vs 1,540; 13% higher Cinebench R23 (single): 1,470 vs 1,300; Lower launch price: $449 vs $499. AMD Ryzen 9 3900X advantages: Stronger Multi-core score: 54 vs 48; 50% higher cores: 12 vs 8; 50% higher Performance cores: 12 vs 8; 50% higher threads: 24 vs 16; 50% higher L2 cache: 6 MB vs 4 MB.

Which is cheaper: AMD Ryzen 7 5800X3D or AMD Ryzen 9 3900X?

AMD Ryzen 7 5800X3D launched cheaper at $449, versus $499 for the AMD Ryzen 9 3900X.

AMD Ryzen 7 5800X3D vs AMD Ryzen 9 3900X

WINNER

AMD

AMD Ryzen 7 5800X3D

$449

AMD

AMD Ryzen 9 3900X

$499

47.9Single-core37.6

48.2Multi-core54.2

87.5Gaming78.3

4 spec wins — AMD Ryzen 7 5800X3D11 spec wins — AMD Ryzen 9 3900X

InnoReviews verdict

AMD Ryzen 7 5800X3D wins this desktop processor face-off, 57.9 to 55.3, pulling ahead mainly in Single-core (+10) and gaming (+9). AMD Ryzen 9 3900X still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the AMD Ryzen 7 5800X3D

Stronger Single-core score: 48 vs 38
Stronger gaming score: 88 vs 78
50% higher L3 cache: 96 MB vs 64 MB
23% higher Geekbench 6 (single): 1,900 vs 1,540
13% higher Cinebench R23 (single): 1,470 vs 1,300
Lower launch price: $449 vs $499

Reasons to pick the AMD Ryzen 9 3900X

Stronger Multi-core score: 54 vs 48
50% higher cores: 12 vs 8
50% higher Performance cores: 12 vs 8
50% higher threads: 24 vs 16
50% higher L2 cache: 6 MB vs 4 MB

General

General comparison: AMD Ryzen 7 5800X3D versus AMD Ryzen 9 3900X
Spec	AMD Ryzen 7 5800X3D	AMD Ryzen 9 3900X
Announced	2022	2019
Socket	AM4	AM4
Process	7 nm	7 nm
Base TDP	105 W	105 W
Max turbo power	142 W	142 W
Unlocked multiplier	No	Yes
Cooler included	No	Yes

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 7 5800X3D versus AMD Ryzen 9 3900X
Spec	AMD Ryzen 7 5800X3D	AMD Ryzen 9 3900X
Cores	8	12+50%
Performance cores	8	12+50%
Efficiency cores	0	0
Threads	16	24+50%
Base clock	3.4 GHz	3.8 GHz+12%
Boost clock	4.5 GHz	4.6 GHz+2%
L2 cache	4 MB	6 MB+50%
L3 cache	96 MB+50%	64 MB

Memory

Memory comparison: AMD Ryzen 7 5800X3D versus AMD Ryzen 9 3900X
Spec	AMD Ryzen 7 5800X3D	AMD Ryzen 9 3900X
Memory support	DDR4-3200	DDR4-3200
Max memory	128 GB	128 GB
Memory channels	2	2

Platform

Platform comparison: AMD Ryzen 7 5800X3D versus AMD Ryzen 9 3900X
Spec	AMD Ryzen 7 5800X3D	AMD Ryzen 9 3900X
PCIe version	4	4
CPU PCIe lanes	24	24

Benchmarks

Benchmarks comparison: AMD Ryzen 7 5800X3D versus AMD Ryzen 9 3900X
Spec	AMD Ryzen 7 5800X3D	AMD Ryzen 9 3900X
Geekbench 6 (single)	1,900+23%	1,540
Geekbench 6 (multi)	10,500	11,000+5%
Cinebench R23 (single)	1,470+13%	1,300
Cinebench R23 (multi)	14,200	18,300+29%
PassMark	28,100	32,600+16%

Related comparisons

AMD Ryzen 7 5800X3Dvs AMD Ryzen 5 7500FVS AMD Ryzen 7 5800X3Dvs Intel Core i5-12600KFVS AMD Ryzen 7 5800X3Dvs AMD Ryzen 7 8700GVS AMD Ryzen 7 5800X3Dvs AMD Ryzen 5 7600VS AMD Ryzen 9 3900Xvs AMD Ryzen 7 5700X3DVS AMD Ryzen 9 3900Xvs AMD Ryzen 7 8700GVS AMD Ryzen 9 3900Xvs AMD Ryzen 7 5800XVS AMD Ryzen 9 3900Xvs Intel Core i5-12600KFVS

Try another matchup

Device oneDevice two