Intel Core i9-9820X vs Intel Core i9-7940X

Comparative analysis of Intel Core i9-9820X and Intel Core i9-7940X 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, 3DMark Fire Strike - Physics Score, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

 

Differences

Reasons to consider the Intel Core i9-9820X

  • CPU is newer: launch date 1 year(s) 0 month(s) later
Launch date October 2018 vs September 2017

Reasons to consider the Intel Core i9-7940X

  • 4 more cores, run more applications at once: 14 vs 10
  • 8 more threads: 28 vs 20
  • Around 5% higher clock speed: 4.30 GHz vs 4.10 GHz
  • Around 11% higher maximum core temperature: 102°C vs 92°C
  • Around 40% more L1 cache; more data can be stored in the L1 cache for quick access later
  • Around 40% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 17% more L3 cache; more data can be stored in the L3 cache for quick access later
  • Around 2% better performance in PassMark - Single thread mark: 2491 vs 2453
  • Around 30% better performance in PassMark - CPU mark: 25964 vs 20045
  • Around 7% better performance in 3DMark Fire Strike - Physics Score: 10950 vs 10201
Specifications (specs)
Number of cores 14 vs 10
Number of threads 28 vs 20
Maximum frequency 4.30 GHz vs 4.10 GHz
Maximum core temperature 102°C vs 92°C
L1 cache 64 KB (per core) vs 64K (per core)
L2 cache 1024 KB (per core) vs 1 MB (per core)
L3 cache 19712 KB (shared) vs 16.5 MB (shared)
Benchmarks
PassMark - Single thread mark 2491 vs 2453
PassMark - CPU mark 25964 vs 20045
3DMark Fire Strike - Physics Score 10950 vs 10201

Compare benchmarks

CPU 1: Intel Core i9-9820X
CPU 2: Intel Core i9-7940X

PassMark - Single thread mark
CPU 1
CPU 2
2453
2491
PassMark - CPU mark
CPU 1
CPU 2
20045
25964
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
10201
10950
Name Intel Core i9-9820X Intel Core i9-7940X
PassMark - Single thread mark 2453 2491
PassMark - CPU mark 20045 25964
3DMark Fire Strike - Physics Score 10201 10950
Geekbench 4 - Single Core 1153
Geekbench 4 - Multi-Core 12928

Compare specifications (specs)

Intel Core i9-9820X Intel Core i9-7940X

Essentials

Architecture codename Skylake Skylake
Launch date October 2018 September 2017
Place in performance rating 769 745
Processor Number i9-9820X i9-7940X
Series Intel® Core™ X-series Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Desktop Desktop
Launch price (MSRP) $1,399
Price now $1,129.99
Value for money (0-100) 6.63

Performance

64 bit support
Base frequency 3.30 GHz 3.10 GHz
Bus Speed 8 GT/s DMI3 8 GT/s DMI3
L1 cache 64K (per core) 64 KB (per core)
L2 cache 1 MB (per core) 1024 KB (per core)
L3 cache 16.5 MB (shared) 19712 KB (shared)
Manufacturing process technology 14 nm 14 nm
Maximum case temperature (TCase) 72 °C
Maximum core temperature 92°C 102°C
Maximum frequency 4.10 GHz 4.30 GHz
Number of cores 10 14
Number of QPI Links 0 0
Number of threads 20 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
Low Halogen Options Available

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)