Intel Core i5-9400F vs Intel Core i7-7820X

Comparative analysis of Intel Core i5-9400F and Intel Core i7-7820X 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, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

 

Differences

Reasons to consider the Intel Core i5-9400F

  • Around 1% higher maximum core temperature: 100°C vs 99°C
  • 2.2x lower typical power consumption: 65 Watt vs 140 Watt
Maximum core temperature 100°C vs 99°C
Thermal Design Power (TDP) 65 Watt vs 140 Watt

Reasons to consider the Intel Core i7-7820X

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 2 more cores, run more applications at once: 8 vs 6
  • 10 more threads: 16 vs 6
  • Around 5% higher clock speed: 4.30 GHz vs 4.10 GHz
  • Around 4% better performance in PassMark - Single thread mark: 2523 vs 2435
  • Around 81% better performance in PassMark - CPU mark: 17166 vs 9467
  • Around 5% better performance in Geekbench 4 - Single Core: 1138 vs 1083
  • Around 86% better performance in Geekbench 4 - Multi-Core: 8814 vs 4737
  • Around 59% better performance in 3DMark Fire Strike - Physics Score: 5958 vs 3746
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 8 vs 6
Number of threads 16 vs 6
Maximum frequency 4.30 GHz vs 4.10 GHz
Benchmarks
PassMark - Single thread mark 2523 vs 2435
PassMark - CPU mark 17166 vs 9467
Geekbench 4 - Single Core 1138 vs 1083
Geekbench 4 - Multi-Core 8814 vs 4737
3DMark Fire Strike - Physics Score 5958 vs 3746

Compare benchmarks

CPU 1: Intel Core i5-9400F
CPU 2: Intel Core i7-7820X

PassMark - Single thread mark
CPU 1
CPU 2
2435
2523
PassMark - CPU mark
CPU 1
CPU 2
9467
17166
Geekbench 4 - Single Core
CPU 1
CPU 2
1083
1138
Geekbench 4 - Multi-Core
CPU 1
CPU 2
4737
8814
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
3746
5958
Name Intel Core i5-9400F Intel Core i7-7820X
PassMark - Single thread mark 2435 2523
PassMark - CPU mark 9467 17166
Geekbench 4 - Single Core 1083 1138
Geekbench 4 - Multi-Core 4737 8814
3DMark Fire Strike - Physics Score 3746 5958
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 10.666
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 159.198
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.92
CompuBench 1.5 Desktop - Video Composition (Frames/s) 5.968
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 16.376

Compare specifications (specs)

Intel Core i5-9400F Intel Core i7-7820X

Essentials

Architecture codename Coffee Lake Skylake
Launch date Q1'19 June 2017
Place in performance rating 1341 1376
Processor Number i5-9400F i7-7820X
Series 9th Generation Intel® Core™ i5 Processors Intel® Core™ X-series Processors
Status Launched Launched
Vertical segment Desktop Desktop
Launch price (MSRP) $679
Price now $499.99
Value for money (0-100) 10.93

Performance

64 bit support
Base frequency 2.90 GHz 3.60 GHz
Bus Speed 8 GT/s DMI3 8 GT/s DMI3
Manufacturing process technology 14 nm 14 nm
Maximum core temperature 100°C 99°C
Maximum frequency 4.10 GHz 4.30 GHz
Number of cores 6 8
Number of threads 6 16
L1 cache 64 KB (per core)
L2 cache 256 KB (per core)
L3 cache 11264 KB (shared)
Maximum case temperature (TCase) 72 °C
Number of QPI Links 0
Unlocked

Memory

Max memory channels 2 4
Maximum memory bandwidth 41.6 GB/s
Maximum memory size 128 GB 128 GB
Supported memory types DDR4-2666 DDR4-2666

Compatibility

Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm
Sockets supported FCLGA1151 FCLGA2066
Thermal Design Power (TDP) 65 Watt 140 Watt
Thermal Solution PCG 2015C (65W) PCG 2017X
Low Halogen Options Available

Peripherals

Max number of PCIe lanes 16 28
PCI Express revision 3.0 3.0
PCIe configurations Up to 1x16, 2x8, 1x8+2x4
Scalability 1S Only 1S Only

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot

Advanced Technologies

Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Number of AVX-512 FMA Units 2

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)