Intel Core i9-9920X vs Intel Core i9-9940X

Comparative analysis of Intel Core i9-9920X 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 Intel Core i9-9920X

  • Around 5% higher maximum core temperature: 92°C vs 88°C
  • Around 2% better performance in PassMark - Single thread mark: 2525 vs 2477
Specifications (specs)
Maximum core temperature 92°C vs 88°C
Benchmarks
PassMark - Single thread mark 2525 vs 2477

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
  • Around 17% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 17% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 7% better performance in PassMark - CPU mark: 27350 vs 25464
Specifications (specs)
Number of cores 14 vs 12
Number of threads 28 vs 24
L1 cache 64K (per core) vs 64K (per core)
L2 cache 1 MB (per core) vs 1 MB (per core)
Benchmarks
PassMark - CPU mark 27350 vs 25464

Compare benchmarks

CPU 1: Intel Core i9-9920X
CPU 2: Intel Core i9-9940X

PassMark - Single thread mark
CPU 1
CPU 2
2525
2477
PassMark - CPU mark
CPU 1
CPU 2
25464
27350
Name Intel Core i9-9920X Intel Core i9-9940X
PassMark - Single thread mark 2525 2477
PassMark - CPU mark 25464 27350
Geekbench 4 - Single Core 5283
Geekbench 4 - Multi-Core 42106

Compare specifications (specs)

Intel Core i9-9920X Intel Core i9-9940X

Essentials

Architecture codename Skylake Skylake
Launch date October 2018 October 2018
Place in performance rating 5 2
Processor Number i9-9920X i9-9940X
Series Intel® Core™ X-series Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 3.50 GHz 3.30 GHz
Bus Speed 8 GT/s DMI3 8 GT/s DMI3
L1 cache 64K (per core) 64K (per core)
L2 cache 1 MB (per core) 1 MB (per core)
L3 cache 19.25 MB (shared) 19.25 MB (shared)
Manufacturing process technology 14 nm 14 nm
Maximum case temperature (TCase) 72 °C
Maximum core temperature 92°C 88°C
Maximum frequency 4.40 GHz 4.40 GHz
Number of cores 12 14
Number of QPI Links 0 0
Number of threads 24 28
Unlocked

Memory

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

Compatibility

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

Peripherals

Max number of PCIe lanes 44 44
PCI Express revision 3.0 3.0
Scalability 1S Only 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® 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 2

Virtualization

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