GadgetVersus Smartphone Processor

AMD Ryzen 9 3900X vs Intel Core i9-9920X

AMD Ryzen 9 3900X on eBay USA
Intel Core i9-9920X on eBay USA

Comparison of the technical characteristics between the processors, with the AMD Ryzen 9 3900X on one side and the Intel Core i9-9920X on the other side. The first is dedicated to the desktop sector, It has 12 cores, 24 threads, a maximum frequency of 4.6GHz. The second is used on the desktop segment, it has a total of 12 cores, 24 threads, its turbo frequency is set to 4.4 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the date of first broadcast, the maximum number of PCIe lines, the values ​​obtained in Geekbench 4 and Cinebench R15, as well as an average price.


Processor AMD Ryzen 9 3900X Intel Core i9-9920X
Market Desktop Desktop
Family Zen 2 Skylake-X
Part number(s), S-Spec 100-000000023,
Release date Q3 2019 Q4 2018
Lithography 7 nm FinFET 14 nm++
Transistors 19,200,000,000 -
Cores 12 12
Threads 24 24
Base frequency 3.8 GHz 3.5 GHz
Turbo frequency 4.6 GHz 4.4 GHz
Cache memory 64 MB 19.25 MB
Max memory capacity 128 GB 128 GB
Memory types DDR4-3200 DDR4-2666
Max PCIe lanes 20 44
TDP 105 W 165 W
GPU integrated graphics None None
Socket AM4 LGA 2066
Cinebench R15 single thread 205 188
Cinebench R15 multi-thread 3,160 2,784
PassMark single thread 2,910 2,530
PassMark CPU Mark 32,080 26,000
(Windows 64-bit)
Geekbench 4 single core
5,683 5,367
(Windows 64-bit)
Geekbench 4 multi-core
45,350 41,881
GFLOPS performance
1,001.2 GFLOPS 1,224.3 GFLOPS
(Multi-core / price performance)
Performance / price ratio
68 pts / $ 29 pts / $
(Multi-core / watt performance)
Performance / watt ratio
432 pts / W 254 pts / W
(Multi-core / global cost performance)
Performance / global cost ratio
47 pts / $ 22 pts / $
Note 4.5 / 5 5 / 5
Reviews 21 2
Amazon AMD Ryzen 9 3900X Intel Core i9-9920X
New price on Amazon
$540 $1,200
Used price on Amazon
$610 -
eBay AMD Ryzen 9 3900X Intel Core i9-9920X
New price on eBay
$670 $1,420
Used price on eBay
$670 -

Price: prices can change over time. For technical reasons, they are not updated in real time. This is only an average of the results on the first page of each product, whether new or used. Shipping costs have not been integrated. To know the final price of the product, please go to the form of the shop. If no price is indicated, it means that we did not find any offers during the last update.

We can better compare what are the technical differences between the two processors. We see that the two processors have an equivalent number of cores, the maximum frequency of AMD Ryzen 9 3900X is greater, that the PDT of AMD Ryzen 9 3900X is lower. The AMD Ryzen 9 3900X was designed earlier.

Ratios: we first consider the average for the new price if available, the average for the used price otherwise. Performance / global cost ratio: This is the ratio of performance on Geekbench 4, divided by the cost of the product + the cost of electricity over 5 years for a duration of use of 13 hours per day.

Performances :

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.

Cinebench R15 - Multi-thread & single thread score
AMD Ryzen 9 3900X 205
Intel Core i9-9920X 188

In single core, the difference is 9%. In multi-core, the differential gap is 14%.

Cinebench R15 evaluates the performance of CPU calculations by restoring a photorealistic 3D scene. The scene has 2,000 objects, 300,000 polygons, uses sharp and fuzzy reflections, bright areas, shadows, procedural shaders, antialiasing, and so on. The faster the rendering of the scene is created, the more powerful the PC is, with a high number of points.

PassMark - CPU Mark & single thread
AMD Ryzen 9 3900X 2,910
Intel Core i9-9920X 2,530

In single core, the difference is 15%. In multi-core, the differential gap is 23%.

PassMark is a benchmarking software that performs several performance tests including prime numbers, integers, floating point, compression, physics, extended instructions, encoding, sorting. The higher the score is, the higher is the device capacity.

Sur Windows 64-bit :

Geekbench 4 - Multi-core & single core score - Windows 64-bit
AMD Ryzen 9 3900X 5,683
Intel Core i9-9920X 5,367

In single core, the difference is 6%. In multi-core, the differential gap is 8%.

Sur Linux 64-bit :

Geekbench 4 - Multi-core & single core score - Linux 64-bit
AMD Ryzen 9 3900X 6,267
Intel Core i9-9920X 5,570

In single core, the difference is 13%. In multi-core, the differential gap is 24%.

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, images, AES encryption, SQL encoding, HTML, PDF file rendering, matrix computation, Fast Fourier Transform, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these devices. For each result, we took an average of 250 values on the famous benchmark software.

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