Intel Core i5-9400F vs Intel Core i7-7740X

Comparative analysis of Intel Core i5-9400F and Intel Core i7-7740X 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.

Intel Core i5-9400F

Intel Core i7-7740X

Differences

Reasons to consider the Intel Core i5-9400F

2 more cores, run more applications at once: 6 vs 4
2x more maximum memory size: 128 GB vs 64 GB
Around 72% lower typical power consumption: 65 Watt vs 112 Watt

Number of cores	6 vs 4
Maximum memory size	128 GB vs 64 GB
Thermal Design Power (TDP)	65 Watt vs 112 Watt

Reasons to consider the Intel Core i7-7740X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more threads: 8 vs 6
Around 10% higher clock speed: 4.50 GHz vs 4.10 GHz
Around 10% better performance in PassMark - Single thread mark: 2686 vs 2439
Around 1% better performance in PassMark - CPU mark: 9611 vs 9472
Around 16% better performance in Geekbench 4 - Single Core: 1251 vs 1083
Around 3% better performance in Geekbench 4 - Multi-Core: 4898 vs 4737

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of threads	8 vs 6
Maximum frequency	4.50 GHz vs 4.10 GHz
Benchmarks
PassMark - Single thread mark	2686 vs 2439
PassMark - CPU mark	9611 vs 9472
Geekbench 4 - Single Core	1251 vs 1083
Geekbench 4 - Multi-Core	4898 vs 4737

Compare benchmarks

CPU 1: Intel Core i5-9400F
CPU 2: Intel Core i7-7740X

PassMark - Single thread mark

CPU 1

CPU 2

2439

2686

PassMark - CPU mark

CPU 1

CPU 2

9472

9611

Geekbench 4 - Single Core

CPU 1

CPU 2

1083

1251

Geekbench 4 - Multi-Core

CPU 1

CPU 2

4737

4898

Name	Intel Core i5-9400F	Intel Core i7-7740X
PassMark - Single thread mark	2439	2686
PassMark - CPU mark	9472	9611
Geekbench 4 - Single Core	1083	1251
Geekbench 4 - Multi-Core	4737	4898
3DMark Fire Strike - Physics Score	3757	0

Compare specifications (specs)

	Intel Core i5-9400F	Intel Core i7-7740X
Essentials
Architecture codename	Coffee Lake	Kaby Lake
Launch date	Q1'19	30 May 2017
Place in performance rating	1329	1357
Processor Number	i5-9400F	i7-7740X
Series	9th Generation Intel® Core™ i5 Processors	Intel® Core™ X-series Processors
Status	Launched	Discontinued
Vertical segment	Desktop	Desktop
Launch price (MSRP)		$350
Price now		$348.99
Value for money (0-100)		10.34
Performance
64 bit support
Base frequency	2.90 GHz	4.30 GHz
Bus Speed	8 GT/s DMI3	8 GT/s DMI3
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	100°C
Maximum frequency	4.10 GHz	4.50 GHz
Number of cores	6	4
Number of threads	6	8
L1 cache		256 KB
L2 cache		1 MB
L3 cache		8 MB
Maximum case temperature (TCase)		72 °C
Number of QPI Links		0
Unlocked
Memory
Max memory channels	2	2
Maximum memory bandwidth	41.6 GB/s
Maximum memory size	128 GB	64 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	112 Watt
Thermal Solution	PCG 2015C (65W)	PCG 2017X
Low Halogen Options Available
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	3.0	3.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4	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 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)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)