AMD Ryzen 9 3900X vs Intel Core i9-9940X

Comparative analysis of AMD Ryzen 9 3900X and Intel Core i9-9940X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Differences

Reasons to consider the AMD Ryzen 9 3900X

  • CPU is newer: launch date 9 month(s) later
  • Around 104445% higher clock speed: 4600 MHz vs 4.40 GHz
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm vs 14 nm
  • 3.3x more L3 cache, more data can be stored in the L3 cache for quick access later
  • Around 57% lower typical power consumption: 105 Watt vs 165 Watt
  • Around 18% better performance in PassMark - Single thread mark: 2913 vs 2477
  • Around 17% better performance in PassMark - CPU mark: 31880 vs 27350
  • Around 6% better performance in Geekbench 4 - Single Core: 5626 vs 5283
  • Around 8% better performance in Geekbench 4 - Multi-Core: 45309 vs 42106
Specifications (specs)
Launch date 7 July 2019 vs October 2018
Maximum frequency 4600 MHz vs 4.40 GHz
Manufacturing process technology 7 nm vs 14 nm
L3 cache 64 MB vs 19.25 MB (shared)
Thermal Design Power (TDP) 105 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark 2913 vs 2477
PassMark - CPU mark 31880 vs 27350
Geekbench 4 - Single Core 5626 vs 5283
Geekbench 4 - Multi-Core 45309 vs 42106

Reasons to consider the Intel Core i9-9940X

  • 2 more cores, run more applications at once: 14 vs 12
  • 4 more threads: 28 vs 24
  • 2.3x more L2 cache, more data can be stored in the L2 cache for quick access later
Number of cores 14 vs 12
Number of threads 28 vs 24
L2 cache 1 MB (per core) vs 6 MB

Compare benchmarks

CPU 1: AMD Ryzen 9 3900X
CPU 2: Intel Core i9-9940X

PassMark - Single thread mark
CPU 1
CPU 2
2913
2477
PassMark - CPU mark
CPU 1
CPU 2
31880
27350
Geekbench 4 - Single Core
CPU 1
CPU 2
5626
5283
Geekbench 4 - Multi-Core
CPU 1
CPU 2
45309
42106
Name AMD Ryzen 9 3900X Intel Core i9-9940X
PassMark - Single thread mark 2913 2477
PassMark - CPU mark 31880 27350
Geekbench 4 - Single Core 5626 5283
Geekbench 4 - Multi-Core 45309 42106

Compare specifications (specs)

AMD Ryzen 9 3900X Intel Core i9-9940X

Essentials

Architecture codename Zen 2 Skylake
Family Ryzen
Launch date 7 July 2019 October 2018
OPN PIB 100-100000023BOX
OPN Tray 100-000000023
Place in performance rating 1 2
Vertical segment Desktop Desktop
Processor Number i9-9940X
Series Intel® Core™ X-series Processors
Status Launched

Performance

Base frequency 3800 MHz 3.30 GHz
L2 cache 6 MB 1 MB (per core)
L3 cache 64 MB 19.25 MB (shared)
Manufacturing process technology 7 nm 14 nm
Maximum frequency 4600 MHz 4.40 GHz
Number of cores 12 14
Number of threads 24 28
Unlocked
64 bit support
Bus Speed 8 GT/s DMI3
L1 cache 64K (per core)
Maximum core temperature 88°C
Number of QPI Links 0

Memory

Max memory channels 2 4
Supported memory types DDR4-3200 DDR4-2666
Maximum memory size 128 GB

Compatibility

Sockets supported AM4 FCLGA2066
Thermal Design Power (TDP) 105 Watt 165 Watt
Max number of CPUs in a configuration 1
Thermal Solution PCG 2017X

Peripherals

PCI Express revision 4.0 3.0
PCIe configurations x16
Max number of PCIe lanes 44
Scalability 1S Only

Security & Reliability

Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Number of AVX-512 FMA Units 2

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)