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Intel Core i7-7820X vs Intel Core i9-9900K

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Intel Core i7-7820X

The Intel Core i7-7820X operates with 8 cores and 16 CPU threads. It run at 4.50 GHz base 4.30 GHz all cores while the TDP is set at 140 W.The processor is attached to the LGA 2066 CPU socket. This version includes 11.00 MB of L3 cache on one chip, supports 4 memory channels to support DDR4-2666 RAM and features 3.0 PCIe Gen 28 lanes. Tjunction keeps below -- degrees C. In particular, Skylake X Architecture is enhanced with 14 nm technology and supports VT-x, VT-x EPT, VT-d. The product was launched on Q2/2017

Intel Core i9-9900K

The Intel Core i9-9900K operates with 8 cores and 16 CPU threads. It run at 5.00 GHz base 4.70 GHz all cores while the TDP is set at 95 W.The processor is attached to the LGA 1151-2 CPU socket. This version includes 16.00 MB of L3 cache on one chip, supports 2 memory channels to support DDR4-2666 RAM and features 3.0 PCIe Gen 16 lanes. Tjunction keeps below 100 °C degrees C. In particular, Coffee Lake S Refresh Architecture is enhanced with 14 nm technology and supports VT-x, VT-x EPT, VT-d. The product was launched on Q4/2018

Intel Core i7-7820X

Intel Core i9-9900K

Intel Core i7-7820X

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Intel Core i9-9900K

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Compare Detail

3.60 GHz	Frequency	3.60 GHz
8	Cores	8
4.50 GHz	Turbo (1 Core)	5.00 GHz
4.30 GHz	Turbo (All Cores)	4.70 GHz
Yes	Hyperthreading	Yes
Yes	Overclocking	Yes
normal	Core Architecture	normal
no iGPU	GPU	Intel UHD Graphics 630
No turbo	GPU (Turbo)	1.20 GHz
14 nm	Technology	14 nm
No turbo	GPU (Turbo)	1.20 GHz
	DirectX Version	12
	Max. displays	3
DDR4-2666	Memory	DDR4-2666
4	Memory channels	2
	Max memory
No	ECC	No
--	L2 Cache	--
11.00 MB	L3 Cache	16.00 MB
3.0	PCIe version	3.0
28	PCIe lanes	16
14 nm	Technology	14 nm
LGA 2066	Socket	LGA 1151-2
140 W	TDP	95 W
VT-x, VT-x EPT, VT-d	Virtualization	VT-x, VT-x EPT, VT-d
Q2/2017	Release date	Q4/2018
Show more data		Show more data

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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 i7-7820X (0%)

Intel Core i9-9900K 1,291 (59%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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 i7-7820X (0%)

Intel Core i9-9900K 12,453 (19%)

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 i7-7820X 506 (61%)

Intel Core i9-9900K 525 (59%)

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 i7-7820X 5,159 (21%)

Intel Core i9-9900K 4,999 (20%)

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 i7-7820X 205 (67%)

Intel Core i9-9900K 227 (66%)

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 i7-7820X 1,890 (18%)

Intel Core i9-9900K 2,249 (21%)

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 i7-7820X 1,158 (55%)

Intel Core i9-9900K 1,350 (60%)

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 i7-7820X 8,920 (23%)

Intel Core i9-9900K 8,782 (18%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.

Intel Core i7-7820X (0%)

Intel Core i9-9900K 462 (2%)

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 i7-7820X 215 (10%)

Intel Core i9-9900K 163.81 (8%)

Geekbench 3, 64bit (Single-Core)

Geekbench 3 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 i7-7820X 5,112 (74%)

Intel Core i9-9900K 6,261 (90%)

Geekbench 3, 64bit (Multi-Core)

Geekbench 3 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 i7-7820X 35,492 (37%)

Intel Core i9-9900K 35,774 (38%)

Cinebench R11.5, 64bit (Single-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

Intel Core i7-7820X 2.40 (88%)

Intel Core i9-9900K 2.70 (73%)

Cinebench R11.5, 64bit (Multi-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

Intel Core i7-7820X 20.78 (38%)

Intel Core i9-9900K 21.25 (38%)

Cinebench R11.5, 64bit (iGPU, OpenGL)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The iGPU test uses the CPU internal graphic unit to execute OpenGL commands.

Intel Core i7-7820X (0%)

Intel Core i9-9900K 45.49 (74%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-Comparison. However the majority of CPUs have not been tested and the results have been estimated by a CPU-Comparison’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 i7-7820X 18,638 (21%)

Intel Core i9-9900K 18,705 (17%)

Monero Hashrate kH/s

The crypto currency Monero has been using the RandomX algorithm since November 2019. This PoW (proof of work) algorithm can only efficiently be calculated using a processor (CPU) or a graphics card (GPU). The CryptoNight algorithm was used for Monero until November 2019, but it could be calculated using ASICs. RandomX benefits from a high number of CPU cores, cache and a fast connection of the memory via as many memory channels as possible

Intel Core i7-7820X (0%)

Intel Core i9-9900K 5.76 (6%)

Electric Usage Estimate

Average hours of use per day

Average CPU Utilization (0-100%)

Power cost, dollar per kWh

Electric Usage Estimate

Average hours of use per day

Average CPU Utilization (0-100%)

Power cost, dollar per kWh

Intel Core i7-7820X		Intel Core i9-9900K
140 W	Max TDP	95 W
NA	Power consumption per day (kWh)	NA
NA	Running cost per day	NA
NA	Power consumption per year (kWh)	NA
NA	Running cost per year	NA