Intel Core i5-11400F vs Intel Core i9-9900X

Comparative analysis of Intel Core i5-11400F and Intel Core i9-9900X 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.

Intel Core i5-11400F

Intel Core i9-9900X

Differences

Reasons to consider the Intel Core i5-11400F

CPU is newer: launch date 2 year(s) 5 month(s) later
Around 9% higher maximum core temperature: 100°C vs 92°C
2.5x lower typical power consumption: 65 Watt vs 165 Watt
Around 17% better performance in PassMark - Single thread mark: 2994 vs 2561

Specifications (specs)
Launch date	16 Mar 2021 vs October 2018
Maximum core temperature	100°C vs 92°C
Thermal Design Power (TDP)	65 Watt vs 165 Watt
Benchmarks
PassMark - Single thread mark	2994 vs 2561

Reasons to consider the Intel Core i9-9900X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 10 vs 6
8 more threads: 20 vs 12
Around 67% more L1 cache; more data can be stored in the L1 cache for quick access later
6.7x 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 28% better performance in PassMark - CPU mark: 21851 vs 17011
Around 82% better performance in 3DMark Fire Strike - Physics Score: 10364 vs 5695

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	10 vs 6
Number of threads	20 vs 12
L1 cache	64K (per core) vs 384 KB
L2 cache	1 MB (per core) vs 1.5 MB
L3 cache	19.25 MB (shared) vs 12 MB
Benchmarks
PassMark - CPU mark	21851 vs 17011
3DMark Fire Strike - Physics Score	10364 vs 5695

Compare benchmarks

CPU 1: Intel Core i5-11400F
CPU 2: Intel Core i9-9900X

PassMark - Single thread mark

CPU 1

CPU 2

2994

2561

PassMark - CPU mark

CPU 1

CPU 2

17011

21851

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

5695

10364

Name	Intel Core i5-11400F	Intel Core i9-9900X
PassMark - Single thread mark	2994	2561
PassMark - CPU mark	17011	21851
3DMark Fire Strike - Physics Score	5695	10364
Geekbench 4 - Single Core		1136
Geekbench 4 - Multi-Core		10446

Compare specifications (specs)

	Intel Core i5-11400F	Intel Core i9-9900X
Essentials
Architecture codename	Rocket Lake	Skylake
Launch date	16 Mar 2021	October 2018
Launch price (MSRP)	$157
Place in performance rating	814	821
Processor Number	i5-11400F	i9-9900X
Series	11th Generation Intel Core i5 Processors	Intel® Core™ X-series Processors
Vertical segment	Desktop	Desktop
Status		Launched
Performance
64 bit support
Base frequency	2.60 GHz	3.50 GHz
Bus Speed	8 GT/s	8 GT/s DMI3
L1 cache	384 KB	64K (per core)
L2 cache	1.5 MB	1 MB (per core)
L3 cache	12 MB	19.25 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	92°C
Maximum frequency	4.40 GHz	4.40 GHz
Number of cores	6	10
Number of threads	12	20
Maximum case temperature (TCase)		72 °C
Number of QPI Links		0
Unlocked
Memory
Max memory channels	2	4
Maximum memory bandwidth	50 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-2666
Compatibility
Max number of CPUs in a configuration	1	1
Package Size	37.5 mm x 37.5 mm
Sockets supported	FCLGA1200	FCLGA2066
Thermal Design Power (TDP)	65 Watt	165 Watt
Thermal Solution	PCG 2019C	PCG 2017X
Peripherals
Max number of PCIe lanes	20	44
PCI Express revision	4.0	3.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4
Scalability	1S Only	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
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 AVX-512	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® Thermal Velocity Boost
Intel® Turbo Boost technology
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)