Intel Core i7-9800X vs Intel Core i9-9820X

Comparative analysis of Intel Core i7-9800X and Intel Core i9-9820X 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 i7-9800X

Intel Core i9-9820X

Differences

Reasons to consider the Intel Core i7-9800X

Around 7% higher clock speed: 4.40 GHz vs 4.10 GHz
Around 3% higher maximum core temperature: 95°C vs 92°C
Around 5% better performance in PassMark - Single thread mark: 2571 vs 2453

Specifications (specs)
Maximum frequency	4.40 GHz vs 4.10 GHz
Maximum core temperature	95°C vs 92°C
Benchmarks
PassMark - Single thread mark	2571 vs 2453

Reasons to consider the Intel Core i9-9820X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 10 vs 8
4 more threads: 20 vs 16
Around 11% better performance in PassMark - CPU mark: 20045 vs 18085
Around 5% better performance in 3DMark Fire Strike - Physics Score: 10201 vs 9740

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	10 vs 8
Number of threads	20 vs 16
Benchmarks
PassMark - CPU mark	20045 vs 18085
3DMark Fire Strike - Physics Score	10201 vs 9740

Compare benchmarks

CPU 1: Intel Core i7-9800X
CPU 2: Intel Core i9-9820X

PassMark - Single thread mark

CPU 1

CPU 2

2571

2453

PassMark - CPU mark

CPU 1

CPU 2

18085

20045

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

9740

10201

Name	Intel Core i7-9800X	Intel Core i9-9820X
PassMark - Single thread mark	2571	2453
PassMark - CPU mark	18085	20045
Geekbench 4 - Single Core	1185
Geekbench 4 - Multi-Core	9409
3DMark Fire Strike - Physics Score	9740	10201

Compare specifications (specs)

	Intel Core i7-9800X	Intel Core i9-9820X
Essentials
Architecture codename	Skylake	Skylake
Launch date	Q4'18	October 2018
Place in performance rating	898	769
Processor Number	i7-9800X	i9-9820X
Series	Intel® Core™ X-series Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
Base frequency	3.80 GHz	3.30 GHz
Bus Speed	8 GT/s DMI3	8 GT/s DMI3
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	95°C	92°C
Maximum frequency	4.40 GHz	4.10 GHz
Number of cores	8	10
Number of QPI Links	0	0
Number of threads	16	20
64 bit support
L1 cache		64K (per core)
L2 cache		1 MB (per core)
L3 cache		16.5 MB (shared)
Maximum case temperature (TCase)		72 °C
Unlocked
Memory
Max memory channels	4	4
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-2666	DDR4-2666
Compatibility
Max number of CPUs in a configuration	1	1
Sockets supported	FCLGA2066	FCLGA2066
Thermal Design Power (TDP)	165 Watt	165 Watt
Thermal Solution	PCG 2017X	PCG 2017X
Peripherals
Max number of PCIe lanes	44	44
PCI Express revision	3.0	3.0
Scalability	1S Only	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
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® Turbo Boost technology
Number of AVX-512 FMA Units	2	2
Intel® Advanced Vector Extensions (AVX)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)