Intel Core i9-9820X vs Intel Core i9-9940X

Comparative analysis of Intel Core i9-9820X and Intel Core i9-9940X 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 i9-9820X

Intel Core i9-9940X

Differences

Reasons to consider the Intel Core i9-9820X

Around 5% higher maximum core temperature: 92°C vs 88°C

Maximum core temperature	92°C vs 88°C

Reasons to consider the Intel Core i9-9940X

4 more cores, run more applications at once: 14 vs 10
8 more threads: 28 vs 20
Around 7% higher clock speed: 4.40 GHz vs 4.10 GHz
Around 40% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 40% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 17% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 7% better performance in PassMark - Single thread mark: 2629 vs 2458
Around 38% better performance in PassMark - CPU mark: 27995 vs 20234
Around 12% better performance in 3DMark Fire Strike - Physics Score: 11442 vs 10201

Specifications (specs)
Number of cores	14 vs 10
Number of threads	28 vs 20
Maximum frequency	4.40 GHz vs 4.10 GHz
L1 cache	64K (per core) vs 64K (per core)
L2 cache	1 MB (per core) vs 1 MB (per core)
L3 cache	19.25 MB (shared) vs 16.5 MB (shared)
Benchmarks
PassMark - Single thread mark	2629 vs 2458
PassMark - CPU mark	27995 vs 20234
3DMark Fire Strike - Physics Score	11442 vs 10201

Compare benchmarks

CPU 1: Intel Core i9-9820X
CPU 2: Intel Core i9-9940X

PassMark - Single thread mark

CPU 1

CPU 2

2458

2629

PassMark - CPU mark

CPU 1

CPU 2

20234

27995

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

10201

11442

Name	Intel Core i9-9820X	Intel Core i9-9940X
PassMark - Single thread mark	2458	2629
PassMark - CPU mark	20234	27995
3DMark Fire Strike - Physics Score	10201	11442
Geekbench 4 - Single Core		1140
Geekbench 4 - Multi-Core		13302

Compare specifications (specs)

	Intel Core i9-9820X	Intel Core i9-9940X
Essentials
Architecture codename	Skylake	Skylake
Launch date	October 2018	October 2018
Place in performance rating	690	679
Processor Number	i9-9820X	i9-9940X
Series	Intel® Core™ X-series Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.30 GHz	3.30 GHz
Bus Speed	8 GT/s DMI3	8 GT/s DMI3
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	1 MB (per core)
L3 cache	16.5 MB (shared)	19.25 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum case temperature (TCase)	72 °C
Maximum core temperature	92°C	88°C
Maximum frequency	4.10 GHz	4.40 GHz
Number of cores	10	14
Number of QPI Links	0	0
Number of threads	20	28
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® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Number of AVX-512 FMA Units	2	2
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)