Intel Core i9-10940X vs Intel Core i9-9820X

Comparative analysis of Intel Core i9-10940X 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: Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

Intel Core i9-10940X

Intel Core i9-9820X

Differences

Reasons to consider the Intel Core i9-10940X

CPU is newer: launch date 1 year(s) 0 month(s) later
4 more cores, run more applications at once: 14 vs 10
8 more threads: 28 vs 20
Around 12% higher clock speed: 4.60 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
2x more maximum memory size: 256 GB vs 128 GB
Around 8% better performance in PassMark - Single thread mark: 2658 vs 2458
Around 36% better performance in PassMark - CPU mark: 27803 vs 20429
Around 10% better performance in 3DMark Fire Strike - Physics Score: 11222 vs 10201

Specifications (specs)
Launch date	7 Oct 2019 vs October 2018
Number of cores	14 vs 10
Number of threads	28 vs 20
Maximum frequency	4.60 GHz vs 4.10 GHz
L1 cache	896 KB vs 64K (per core)
L2 cache	14 MB vs 1 MB (per core)
L3 cache	19.25 MB vs 16.5 MB (shared)
Maximum memory size	256 GB vs 128 GB
Benchmarks
PassMark - Single thread mark	2658 vs 2458
PassMark - CPU mark	27803 vs 20429
3DMark Fire Strike - Physics Score	11222 vs 10201

Reasons to consider the Intel Core i9-9820X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 7% higher maximum core temperature: 92°C vs 86°C

Unlocked	Unlocked vs Locked
Maximum core temperature	92°C vs 86°C

Compare benchmarks

CPU 1: Intel Core i9-10940X
CPU 2: Intel Core i9-9820X

PassMark - Single thread mark

CPU 1

CPU 2

2658

2458

PassMark - CPU mark

CPU 1

CPU 2

27803

20429

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

11222

10201

Name	Intel Core i9-10940X	Intel Core i9-9820X
Geekbench 4 - Single Core	1176
Geekbench 4 - Multi-Core	13529
PassMark - Single thread mark	2658	2458
PassMark - CPU mark	27803	20429
3DMark Fire Strike - Physics Score	11222	10201

Compare specifications (specs)

	Intel Core i9-10940X	Intel Core i9-9820X
Essentials
Architecture codename	Cascade Lake	Skylake
Launch date	7 Oct 2019	October 2018
Launch price (MSRP)	$784
Place in performance rating	653	678
Processor Number	i9-10940X	i9-9820X
Series	Intel Core X-series Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
Base frequency	3.30 GHz	3.30 GHz
L1 cache	896 KB	64K (per core)
L2 cache	14 MB	1 MB (per core)
L3 cache	19.25 MB	16.5 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	86°C	92°C
Maximum frequency	4.60 GHz	4.10 GHz
Number of cores	14	10
Number of threads	28	20
64 bit support
Bus Speed		8 GT/s DMI3
Maximum case temperature (TCase)		72 °C
Number of QPI Links		0
Unlocked
Memory
Max memory channels	4	4
Maximum memory size	256 GB	128 GB
Supported memory types	DDR4-2933	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	48	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)