How do the scores compare?

AMD Ryzen 9 3900X scores 55.3/100 overall; Intel Core i9-10900K scores 47.9/100. AMD Ryzen 9 3900X wins 14 individual spec rows, Intel Core i9-10900K wins 5.

What are the main differences between the AMD Ryzen 9 3900X and the Intel Core i9-10900K?

AMD Ryzen 9 3900X advantages: Stronger Multi-core score: 54 vs 48; Stronger gaming score: 78 vs 55; 220% higher L3 cache: 64 MB vs 20 MB; 140% higher L2 cache: 6 MB vs 3 MB; 50% lower process: 7 nm vs 14 nm. Intel Core i9-10900K advantages: Stronger Single-core score: 42 vs 38; 76% higher Max turbo power: 250 W vs 142 W; 15% higher Boost clock: 5.3 GHz vs 4.6 GHz; 12% higher Geekbench 6 (single): 1,730 vs 1,540.

Which is cheaper: AMD Ryzen 9 3900X or Intel Core i9-10900K?

Intel Core i9-10900K launched cheaper at $488, versus $499 for the AMD Ryzen 9 3900X.

AMD Ryzen 9 3900X vs Intel Core i9-10900K

WINNER

AMD

AMD Ryzen 9 3900X

$499

Intel

Intel Core i9-10900K

$488

37.6Single-core41.9

54.2Multi-core48.2

78.3Gaming54.6

14 spec wins — AMD Ryzen 9 3900X5 spec wins — Intel Core i9-10900K

InnoReviews verdict

AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 47.9, pulling ahead mainly in gaming (+24) and Multi-core (+6). Intel Core i9-10900K 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 9 3900X

Stronger Multi-core score: 54 vs 48
Stronger gaming score: 78 vs 55
220% higher L3 cache: 64 MB vs 20 MB
140% higher L2 cache: 6 MB vs 3 MB
50% lower process: 7 nm vs 14 nm

Reasons to pick the Intel Core i9-10900K

Stronger Single-core score: 42 vs 38
76% higher Max turbo power: 250 W vs 142 W
15% higher Boost clock: 5.3 GHz vs 4.6 GHz
12% higher Geekbench 6 (single): 1,730 vs 1,540

General

General comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
Announced	2019	2020
Socket	AM4	LGA1200
Process	7 nm+50%	14 nm
Base TDP	105 W+16%	125 W
Max turbo power	142 W	250 W+76%
Unlocked multiplier	Yes	Yes
Cooler included	Yes	No

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
Cores	12+20%	10
Performance cores	12+20%	10
Efficiency cores	0	0
Threads	24+20%	20
Base clock	3.8 GHz+3%	3.7 GHz
Boost clock	4.6 GHz	5.3 GHz+15%
L2 cache	6 MB+140%	3 MB
L3 cache	64 MB+220%	20 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
iGPU	—	Intel UHD Graphics 630
iGPU clock	—	1,200 MHz

Memory

Memory comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
Memory support	DDR4-3200	DDR4-2933
Max memory	128 GB	128 GB
Memory channels	2	2

Platform

Platform comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
PCIe version	4+33%	3
CPU PCIe lanes	24+50%	16

Benchmarks

Benchmarks comparison: AMD Ryzen 9 3900X versus Intel Core i9-10900K
Spec	AMD Ryzen 9 3900X	Intel Core i9-10900K
Geekbench 6 (single)	1,540Top 63%	1,730+12%Top 50%
Geekbench 6 (multi)	11,000+6%Top 35%	10,400Top 38%
Cinebench R23 (single)	1,300Top 59%	1,340+3%Top 52%
Cinebench R23 (multi)	18,300+12%Top 24%	16,300Top 30%
PassMark	32,600+38%Top 26%	23,700Top 40%

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