Intel Core i9-7920X vs Intel Core i7-7820X

Last updated: 2023-04-05

CPU comparison with benchmarks


Intel Core i9-7920X		Intel Core i7-7820X
CPU comparison Intel Core i9-7920X or Intel Core i7-7820X - 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 i9-7920X has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. Up to 128 GB of memory is supported in 4 memory channels. The Intel Core i9-7920X was released in Q3/2017. The Intel Core i7-7820X has 8 cores with 16 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 i7-7820X was released in Q2/2017.

Intel Core i9 (78)	Family	Intel Core i7 (298)
Intel Core i 7000X (9)	CPU group	Intel Core i 7000X (9)
7	Generation	7
Skylake X	Architecture	Skylake X
Desktop / Server	Segment	Desktop / Server
--	Predecessor	--
Intel Core i9-9920X	Successor	--

CPU Cores and Base Frequency The Intel Core i9-7920X has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the Intel Core i9-7920X is 2.90 GHz (4.30 GHz) while the Intel Core i7-7820X has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Core i7-7820X is at 3.60 GHz (4.50 GHz).
Intel Core i9-7920X	Characteristic	Intel Core i7-7820X
12	Cores	8
24	Threads	16
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	Yes
2.90 GHz	Frequency	3.60 GHz
4.30 GHz	Turbo Frequency (1 Core)	4.50 GHz
3.70 GHz	Turbo Frequency (All Cores)	4.30 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 i9-7920X	Characteristic	Intel Core i7-7820X
--	AI hardware	--
--	AI specifications	--

Internal Graphics The Intel Core i9-7920X or Intel Core i7-7820X has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
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 i9-7920X can use up to 128 GB of memory in 4 memory channels. The maximum memory bandwidth is 85.4 GB/s. The Intel Core i7-7820X supports up to 128 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 85.4 GB/s.
Intel Core i9-7920X	Characteristic	Intel Core i7-7820X
DDR4-2666	Memory	DDR4-2666
128 GB	Max. Memory	128 GB
4 (Quad Channel)	Memory channels	4 (Quad Channel)
85.4 GB/s	Max. Bandwidth	85.4 GB/s
No	ECC	No
--	L2 Cache	--
16.00 MB	L3 Cache	11.00 MB
3.0	PCIe version	3.0
44	PCIe lanes	28
43.3 GB/s	PCIe Bandwidth	27.6 GB/s
Thermal Management The thermal design power (TDP for short) of the Intel Core i9-7920X is 165 W, while the Intel Core i7-7820X has a TDP of 140 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Core i9-7920X	Characteristic	Intel Core i7-7820X
165 W	TDP (PL1 / PBP)	140 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
--	Tjunction max.	--
Technical details The Intel Core i9-7920X is manufactured in 14 nm and has 16.00 MB cache. The Intel Core i7-7820X is manufactured in 14 nm and has a 11.00 MB cache.
Intel Core i9-7920X	Characteristic	Intel Core i7-7820X
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, Linux	Operating systems	Windows 10, Linux
Q3/2017	Release date	Q2/2017
1189 $	Release price	650 $

show more data		show more data

Intel Core i9-7920X 12C 24T @ 2.90 GHz (4.30 GHz) buy now on Amazon and save! Intel Core i7-7820X 8C 16T @ 3.60 GHz (4.50 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

Intel Core i9-7920X (92%)

Intel Core i7-7820X (100%)

⌀ Multi core performance in 6 CPU benchmarks

Intel Core i9-7920X (93%)

Intel Core i7-7820X (80%)

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 i9-7920X 12C 24T @ 4.30 GHz	1133 (88%)
	Intel Core i7-7820X 8C 16T @ 4.50 GHz	1285 (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 i9-7920X 12C 24T @ 3.70 GHz	11498 (100%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	8916 (78%)

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 i9-7920X 12C 24T @ 4.30 GHz	1410 (93%)
	Intel Core i7-7820X 8C 16T @ 4.50 GHz	1513 (100%)

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 i9-7920X 12C 24T @ 3.70 GHz	9881 (100%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	8123 (82%)

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 i9-7920X 12C 24T @ 3.70 GHz	23625 (100%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	17244 (73%)

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 i9-7920X 12C 24T @ 3.70 GHz	120.9 (57%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	212 (100%)

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 i9-7920X 12C 24T @ 2.90 GHz	6200 (100%)
	Intel Core i7-7820X 8C 16T @ 3.60 GHz	4398 (71%)

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 i9-7920X 12C 24T @ 4.30 GHz	188 (95%)
	Intel Core i7-7820X 8C 16T @ 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 i9-7920X 12C 24T @ 3.70 GHz	2438 (100%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	1887 (77%)

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 i9-7920X 12C 24T @ 4.30 GHz	0 (0%)
	Intel Core i7-7820X 8C 16T @ 4.50 GHz	498 (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 i9-7920X 12C 24T @ 3.70 GHz	0 (0%)
	Intel Core i7-7820X 8C 16T @ 4.30 GHz	5155 (100%)

Devices using this processor
Intel Core i9-7920X	Intel Core i7-7820X
Unknown	Unknown

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