How do the scores compare?

AMD Ryzen 9 3900X scores 55.3/100 overall; Intel Core i7-10700K scores 42.9/100. AMD Ryzen 9 3900X wins 13 individual spec rows, Intel Core i7-10700K wins 4.

What are the main differences between the AMD Ryzen 9 3900X and the Intel Core i7-10700K?

AMD Ryzen 9 3900X advantages: Stronger multi-core score: 54 vs 42; 300% higher L3 cache: 64 MB vs 16 MB; 200% higher L2 cache: 6 MB vs 2 MB; 67% higher PassMark: 32,600 vs 19,500; 50% lower process: 7 nm vs 14 nm. Intel Core i7-10700K advantages: 61% higher Max turbo power: 229 W vs 142 W; 11% higher Boost clock: 5.1 GHz vs 4.6 GHz; Lower launch price: $374 vs $499.

Which is cheaper: AMD Ryzen 9 3900X or Intel Core i7-10700K?

Intel Core i7-10700K launched cheaper at $374, versus $499 for the AMD Ryzen 9 3900X.

AMD Ryzen 9 3900X vs Intel Core i7-10700K

WINNER

AMD

AMD Ryzen 9 3900X

$499

Intel

Intel Core i7-10700K

$374

37.6Single-core39.9

54.2Multi-core42

78.3Gamingspec-based48

13 spec wins — AMD Ryzen 9 3900X4 spec wins — Intel Core i7-10700K

InnoReviews verdict

AMD Ryzen 9 3900X wins this desktop processor face-off, 55.3 to 42.9, pulling ahead mainly in multi-core (+12). Intel Core i7-10700K 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 42
300% higher L3 cache: 64 MB vs 16 MB
200% higher L2 cache: 6 MB vs 2 MB
67% higher PassMark: 32,600 vs 19,500
50% lower process: 7 nm vs 14 nm

Reasons to pick the Intel Core i7-10700K

61% higher Max turbo power: 229 W vs 142 W
11% higher Boost clock: 5.1 GHz vs 4.6 GHz
Lower launch price: $374 vs $499

General

General comparison: AMD Ryzen 9 3900X versus Intel Core i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
Announced	2019	2020
Socket	AM4	LGA1200
Process	7 nm+50%	14 nm
Base TDP	105 W+16%	125 W
Max turbo power	142 W	229 W+61%
Unlocked multiplier	Yes	Yes
Cooler included	Yes	No

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 9 3900X versus Intel Core i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
Cores	12+50%	8
Performance cores	12+50%	8
Efficiency cores	0	0
Threads	24+50%	16
Base clock	3.8 GHz	3.8 GHz
Boost clock	4.6 GHz	5.1 GHz+11%
L2 cache	6 MB+200%	2 MB
L3 cache	64 MB+300%	16 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 9 3900X versus Intel Core i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
iGPU	—	Intel UHD Graphics 630
iGPU clock	—	1,200 MHz

Memory

Memory comparison: AMD Ryzen 9 3900X versus Intel Core i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
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 i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
PCIe version	4+33%	3
CPU PCIe lanes	24+50%	16

Benchmarks

Benchmarks comparison: AMD Ryzen 9 3900X versus Intel Core i7-10700K
Spec	AMD Ryzen 9 3900X	Intel Core i7-10700K
Geekbench 6 (single)	1,540Bottom 32%	1,670+8%Bottom 38%
Geekbench 6 (multi)	11,000+28%Top 47%	8,600Bottom 43%
Cinebench R23 (single)	1,300Bottom 33%	1,300Bottom 33%
Cinebench R23 (multi)	18,300+41%Top 32%	13,000Bottom 49%
PassMark	32,600+67%Top 37%	19,500Bottom 34%

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