Intel Core i7-8086K vs Intel Core i9-7940X

Comparative analysis of Intel Core i7-8086K and Intel Core i9-7940X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, 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.

Intel Core i7-8086K

Intel Core i9-7940X

Differences

Reasons to consider the Intel Core i7-8086K

CPU is newer: launch date 9 month(s) later
Around 16% higher clock speed: 5.00 GHz vs 4.30 GHz
Around 74% lower typical power consumption: 95 Watt vs 165 Watt
Around 15% better performance in PassMark - Single thread mark: 2854 vs 2491
Around 15% better performance in Geekbench 4 - Single Core: 1330 vs 1153

Specifications (specs)
Launch date	1 June 2018 vs September 2017
Maximum frequency	5.00 GHz vs 4.30 GHz
Thermal Design Power (TDP)	95 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark	2854 vs 2491
Geekbench 4 - Single Core	1330 vs 1153

Reasons to consider the Intel Core i9-7940X

8 more cores, run more applications at once: 14 vs 6
16 more threads: 28 vs 12
Around 2% higher maximum core temperature: 102°C vs 100°C
2.3x more L1 cache, more data can be stored in the L1 cache for quick access later
9.3x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 60% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 82% better performance in PassMark - CPU mark: 25987 vs 14313
Around 85% better performance in Geekbench 4 - Multi-Core: 12928 vs 6972
2.2x better performance in 3DMark Fire Strike - Physics Score: 10950 vs 5045

Specifications (specs)
Number of cores	14 vs 6
Number of threads	28 vs 12
Maximum core temperature	102°C vs 100°C
L1 cache	64 KB (per core) vs 384 KB
L2 cache	1024 KB (per core) vs 1.5 MB
L3 cache	19712 KB (shared) vs 12 MB
Benchmarks
PassMark - CPU mark	25987 vs 14313
Geekbench 4 - Multi-Core	12928 vs 6972
3DMark Fire Strike - Physics Score	10950 vs 5045

Compare benchmarks

CPU 1: Intel Core i7-8086K
CPU 2: Intel Core i9-7940X

PassMark - Single thread mark

CPU 1

CPU 2

2854

2491

PassMark - CPU mark

CPU 1

CPU 2

14313

25987

Geekbench 4 - Single Core

CPU 1

CPU 2

1330

1153

Geekbench 4 - Multi-Core

CPU 1

CPU 2

6972

12928

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

5045

10950

Name	Intel Core i7-8086K	Intel Core i9-7940X
PassMark - Single thread mark	2854	2491
PassMark - CPU mark	14313	25987
Geekbench 4 - Single Core	1330	1153
Geekbench 4 - Multi-Core	6972	12928
3DMark Fire Strike - Physics Score	5045	10950

Compare specifications (specs)

	Intel Core i7-8086K	Intel Core i9-7940X
Essentials
Architecture codename	Coffee Lake	Skylake
Launch date	1 June 2018	September 2017
Launch price (MSRP)	$425	$1,399
Place in performance rating	1033	747
Price now	$552.96	$1,129.99
Processor Number	i7-8086K	i9-7940X
Series	8th Generation Intel® Core™ i7 Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Value for money (0-100)	8.98	6.63
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	4.00 GHz	3.10 GHz
Bus Speed	8 GT/s DMI3	8 GT/s DMI3
L1 cache	384 KB	64 KB (per core)
L2 cache	1.5 MB	1024 KB (per core)
L3 cache	12 MB	19712 KB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C
Maximum core temperature	100°C	102°C
Maximum frequency	5.00 GHz	4.30 GHz
Number of cores	6	14
Number of threads	12	28
Unlocked
Number of QPI Links		0
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
Graphics
Device ID	0x3E92
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.20 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® UHD Graphics 630
Graphics interfaces
Number of displays supported	3
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm
Sockets supported	FCLGA1151	FCLGA2066
Thermal Design Power (TDP)	95 Watt	165 Watt
Thermal Solution	PCG 2015D (130W)	PCG 2017X
Peripherals
Max number of PCIe lanes	16	44
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® Advanced Vector Extensions (AVX)
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
Number of AVX-512 FMA Units		2
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)