Intel Core i9-10920X vs Intel Core i9-9940X

Last updated: 2024-04-16

CPU comparison with benchmarks


Intel Core i9-10920X		Intel Core i9-9940X
CPU comparison Intel Core i9-10920X or Intel Core i9-9940X - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results. The Intel Core i9-10920X has 12 cores with 24 threads and clocks with a maximum frequency of 4.80 GHz. Up to 256 GB of memory is supported in 4 memory channels. The Intel Core i9-10920X was released in Q4/2019. The Intel Core i9-9940X has 14 cores with 28 threads and clocks with a maximum frequency of 4.50 GHz. The CPU supports up to 128 GB of memory in 4 memory channels. The Intel Core i9-9940X was released in Q4/2018.

Intel Core i9 (78)	Family	Intel Core i9 (78)
Intel Core i 10000X (4)	CPU group	Intel Core i 9000X (8)
10	Generation	9
Cascade Lake	Architecture	Skylake X Refresh
Desktop / Server	Segment	Desktop / Server
--	Predecessor	Intel Core i9-7940X
--	Successor	--

CPU Cores and Base Frequency The Intel Core i9-10920X is a 12 core processor with a clock frequency of 3.50 GHz (4.80 GHz). The Intel Core i9-9940X has 14 CPU cores with a clock frequency of 3.30 GHz (4.50 GHz).
Intel Core i9-10920X	Characteristic	Intel Core i9-9940X
12	Cores	14
24	Threads	28
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	Yes
3.50 GHz	Frequency	3.30 GHz
4.80 GHz	Turbo Frequency (1 Core)	4.50 GHz
4.40 GHz	Turbo Frequency (All Cores)	4.20 GHz

Artificial Intelligence and Machine Learning Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
Intel Core i9-10920X	Characteristic	Intel Core i9-9940X
--	AI hardware	--
--	AI specifications	--

Internal Graphics The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
no iGPU	GPU	no iGPU
	GPU frequency	--
--	GPU (Turbo)	--
--	GPU Generation	--
	Technology
	Max. displays
--	Compute units	--
--	Shader	--
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	--
--	DirectX Version	--

Hardware codec support A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
no iGPU	GPU	no iGPU
No	Codec h265 / HEVC (8 bit)	No
No	Codec h265 / HEVC (10 bit)	No
No	Codec h264	No
No	Codec VP9	No
No	Codec VP8	No
No	Codec AV1	No
No	Codec AVC	No
No	Codec VC-1	No
No	Codec JPEG	No

Memory & PCIe The Intel Core i9-10920X supports a maximum of 256 GB of memory in 4 memory channels. The Intel Core i9-9940X can connect up to 128 GB of memory in 4 memory channels.
Intel Core i9-10920X	Characteristic	Intel Core i9-9940X
DDR4-2933	Memory	DDR4-2666
256 GB	Max. Memory	128 GB
4 (Quad Channel)	Memory channels	4 (Quad Channel)
93.8 GB/s	Max. Bandwidth	85.4 GB/s
No	ECC	No
--	L2 Cache	--
19.00 MB	L3 Cache	19.00 MB
3.0	PCIe version	3.0
48	PCIe lanes	44
47.3 GB/s	PCIe Bandwidth	43.3 GB/s
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i9-10920X has a TDP of 165 W, that of the Intel Core i9-9940X is 165 W.
Intel Core i9-10920X	Characteristic	Intel Core i9-9940X
165 W	TDP (PL1 / PBP)	165 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
94 °C	Tjunction max.	92 °C
Technical details The Intel Core i9-10920X has a 19.00 MB cache, while the Intel Core i9-9940X cache has a total of 19.00 MB.
Intel Core i9-10920X	Characteristic	Intel Core i9-9940X
14 nm	Technology	14 nm
Monolithic	Chip design	Monolithic
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512	ISA extensions	SSE4.1, SSE4.2, AVX2, AVX-512
LGA 2066	Socket	LGA 2066
VT-x, VT-x EPT, VT-d	Virtualization	VT-x, VT-x EPT, VT-d
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows 10, Windows 11, Linux
Q4/2019	Release date	Q4/2018
689 $	Release price	1387 $

show more data		show more data

Intel Core i9-10920X 12C 24T @ 3.50 GHz (4.80 GHz) buy now on Amazon and save! Intel Core i9-9940X 14C 28T @ 3.30 GHz (4.50 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks

Intel Core i9-10920X (100%)

Intel Core i9-9940X (97%)

⌀ Multi core performance in 3 CPU benchmarks

Intel Core i9-10920X (95%)

Intel Core i9-9940X (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	1179 (100%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	1174 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	12703 (91%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	13946 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	1568 (100%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	1459 (93%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	10960 (100%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	10820 (99%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	26361 (93%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	28390 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	70 (100%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	922 (100%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	0 (0%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	457 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	0 (0%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	5912 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	115.3 (100%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i9-10920X 12C 24T @ 3.50 GHz	7076 (100%)
	Intel Core i9-9940X 14C 28T @ 3.30 GHz	0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-10920X 12C 24T @ 4.80 GHz	0 (0%)
	Intel Core i9-9940X 14C 28T @ 4.50 GHz	197 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-10920X 12C 24T @ 4.40 GHz	0 (0%)
	Intel Core i9-9940X 14C 28T @ 4.20 GHz	2587 (100%)

Devices using this processor
Intel Core i9-10920X	Intel Core i9-9940X
Unknown	Unknown

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