Intel Core i9-9940X vs AMD Ryzen 9 3900X
Comparing Core i9-9940X and Ryzen 9 3900X processor market type (desktop or notebook), architecture and sales start time and price.
Core i9-9940X and Ryzen 9 3900X quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i9-9940X and Ryzen 9 3900X performance, but for precise assessment you have to consider their test results.
Number of cores
Number of threads
4 × 8 GT / s
96K (per core)
512K (per core)
19.25 MB (shared)
Manufacturing process technology
64 bit support
Information on Core i9-9940X and Ryzen 9 3900X compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
Power consumption (TDP)
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-9940X and Ryzen 9 3900X. You'll probably need this information if you require some particular technology.
Virtual machine speed-up technologies supported by Core i9-9940X and Ryzen 9 3900X are enumerated here.
Types, maximum amount and channel number of RAM supported by Core i9-9940X and Ryzen 9 3900X.
Supported memory types
Maximum memory size
Max memory channels
Maximum memory bandwidth
79.47 GB / s
47.68 GB / s
Non-gaming benchmarks performance of Core i9-9940X and Ryzen 9 3900X. Overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
Ryzen 9 3900X 66.54 +18.4%
Ryzen 9 3900X 31911 +18.4%
Let's see how good Core i9-9940X and Ryzen 9 3900X are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.
Advantages of Intel Core i9-9940X
We are unaware of any advantages of Intel Core i9-9940X over AMD Ryzen 9 3900X.
Advantages of AMD Ryzen 9 3900X
18.4% faster in synthetic tests
Cheaper ($499 vs $1387)
Finer manufacturing process technology (7 vs 14 nm)
Less power hungry (125 vs 165 watts)
Virtualization (Hardware acceleration of virtual machines)
So, Core i9-9940X or Ryzen 9 3900X?
Judging by the results of synthetic and gaming tests, Technical City recommends AMD Ryzen 9 3900X.
Should you still have questions on choice between Core i9-9940X and Ryzen 9 3900X, ask them in Comments section, and we shall answer.