Intel Core i5-9400 vs Intel Core i9-9820X

Comparative analysis of Intel Core i5-9400 and Intel Core i9-9820X 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, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i5-9400

Intel Core i9-9820X

Differences

Reasons to consider the Intel Core i5-9400

Around 9% higher maximum core temperature: 100°C vs 92°C
2.5x lower typical power consumption: 65 Watt vs 165 Watt

Maximum core temperature	100°C vs 92°C
Thermal Design Power (TDP)	65 Watt vs 165 Watt

Reasons to consider the Intel Core i9-9820X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
4 more cores, run more applications at once: 10 vs 6
14 more threads: 20 vs 6
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 83% more L3 cache; more data can be stored in the L3 cache for quick access later
2.1x better performance in PassMark - CPU mark: 20045 vs 9376
2.7x better performance in 3DMark Fire Strike - Physics Score: 10201 vs 3760

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	10 vs 6
Number of threads	20 vs 6
L1 cache	64K (per core) vs 64K (per core)
L2 cache	1 MB (per core) vs 256K (per core)
L3 cache	16.5 MB (shared) vs 9 MB (shared)
Benchmarks
PassMark - Single thread mark	2453 vs 2441
PassMark - CPU mark	20045 vs 9376
3DMark Fire Strike - Physics Score	10201 vs 3760

Compare benchmarks

CPU 1: Intel Core i5-9400
CPU 2: Intel Core i9-9820X

PassMark - Single thread mark

CPU 1

CPU 2

2441

2453

PassMark - CPU mark

CPU 1

CPU 2

9376

20045

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

3760

10201

Name	Intel Core i5-9400	Intel Core i9-9820X
PassMark - Single thread mark	2441	2453
PassMark - CPU mark	9376	20045
Geekbench 4 - Single Core	1075
Geekbench 4 - Multi-Core	4645
3DMark Fire Strike - Physics Score	3760	10201
GFXBench 4.0 - Car Chase Offscreen (Frames)	1738
GFXBench 4.0 - Manhattan (Frames)	3574
GFXBench 4.0 - T-Rex (Frames)	6414
GFXBench 4.0 - Car Chase Offscreen (Fps)	1738
GFXBench 4.0 - Manhattan (Fps)	3574
GFXBench 4.0 - T-Rex (Fps)	6414

Compare specifications (specs)

	Intel Core i5-9400	Intel Core i9-9820X
Essentials
Architecture codename	Coffee Lake	Skylake
Launch date	October 2018	October 2018
Place in performance rating	771	772
Processor Number	i5-9400	i9-9820X
Series	9th Generation Intel® Core™ i5 Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.90 GHz	3.30 GHz
Bus Speed	8 GT/s DMI3	8 GT/s DMI3
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	1 MB (per core)
L3 cache	9 MB (shared)	16.5 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C	72 °C
Maximum core temperature	100°C	92°C
Maximum frequency	4.10 GHz	4.10 GHz
Number of cores	6	10
Number of threads	6	20
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
Graphics
Device ID	0X3E98/x92
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.05 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
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	165 Watt
Thermal Solution	PCG 2015C (65W)	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
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)