Intel Core i9-11900K vs Intel Core i7-11700K

CPU comparison with benchmarks

Intel Core i9-11900K		Intel Core i7-11700K
CPU comparison In this CPU comparison, we compare the Intel Core i9-11900K and the Intel Core i7-11700K and use benchmarks to check which processor is faster. We compare the Intel Core i9-11900K 8 core processor released in Q1/2021 with the Intel Core i7-11700K which has 8 CPU cores and was introduced in Q1/2021.
Intel Core i9 (81)	Family	Intel Core i7 (300)
Intel Core i 11000 (22)	CPU group	Intel Core i 11000 (22)
11	Generation	11
Rocket Lake S	Architecture	Rocket Lake S
Desktop	Segment	Desktop
Intel Core i9-10900K	Predecessor	Intel Core i7-10700K
Intel Core i9-12900K	Successor	Intel Core i7-12700K
CPU Cores and Base Frequency The Intel Core i9-11900K is a 8 core processor with a clock frequency of 3.50 GHz (5.30 GHz). The processor can compute 16 threads at the same time. The Intel Core i7-11700K clocks with 3.60 GHz (5.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.
Intel Core i9-11900K	Characteristic	Intel Core i7-11700K
8	Cores	8
16	Threads	16
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	Yes
3.50 GHz	Frequency	3.60 GHz
5.30 GHz	Turbo Frequency (1 Core)	5.00 GHz
4.80 GHz	Turbo Frequency (All Cores)	4.50 GHz
NPU AI performance The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
Intel Core i9-11900K	Characteristic	Intel Core i7-11700K
--	AI hardware	--
--	AI specifications	--
--	NPU + CPU + iGPU	--
Integrated graphics (iGPU) Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.
Intel UHD Graphics 750	GPU	Intel UHD Graphics 750
0.35 GHz	GPU frequency	0.35 GHz
1.30 GHz	GPU (Turbo)	1.30 GHz
12	GPU Generation	12
14 nm	Technology	14 nm
3	Max. displays	3
32	Compute units	32
256	Shader	256
No	Hardware Raytracing	No
No	Frame Generation	No
64 GB	Max. GPU Memory	64 GB
12	DirectX Version	12
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.
Intel UHD Graphics 750	GPU	Intel UHD Graphics 750
Decode / Encode	Codec h265 / HEVC (8 bit)	Decode / Encode
Decode / Encode	Codec h265 / HEVC (10 bit)	Decode / Encode
Decode / Encode	Codec h264	Decode / Encode
Decode / Encode	Codec VP9	Decode / Encode
Decode	Codec VP8	Decode
Decode	Codec AV1	Decode
Decode / Encode	Codec AVC	Decode / Encode
Decode	Codec VC-1	Decode
Decode / Encode	Codec JPEG	Decode / Encode

Memory & PCIe Up to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i9-11900K, while the Intel Core i7-11700K supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.
Intel Core i9-11900K	Characteristic	Intel Core i7-11700K
DDR4-3200	Memory	DDR4-3200
128 GB	Max. Memory	128 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
51.2 GB/s	Max. Bandwidth	51.2 GB/s
No	ECC	No
4.00 MB	L2 Cache	4.00 MB
16.00 MB	L3 Cache	16.00 MB
4.0	PCIe version	4.0
20	PCIe lanes	20
39.4 GB/s	PCIe Bandwidth	39.4 GB/s
Thermal Management The Intel Core i9-11900K has a TDP of 125 W. The TDP of the Intel Core i7-11700K is 125 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
Intel Core i9-11900K	Characteristic	Intel Core i7-11700K
125 W	TDP (PL1 / PBP)	125 W
251 W @ 56 s	TDP (PL2)	251 W @ 56 s
--	TDP up	--
95 W	TDP down	95 W
100 °C	Tjunction max.	100 °C
Technical details The Intel Core i9-11900K has 20.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i7-11700K is at 20.00 MB. The processor is manufactured in 14 nm.
Intel Core i9-11900K	Characteristic	Intel Core i7-11700K
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 1200	Socket	LGA 1200
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
Q1/2021	Release date	Q1/2021
539 $	Release price	374 $
show more data		show more data
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Devices using this processor
Intel Core i9-11900K	Intel Core i7-11700K
Unknown	Unknown

Comparison of the two processors

In terms of performance, processors of the Core i7 family have seldom been so close to the processors of the Core i9 family as in the 11th generation. You can quickly see this when you compare the performance in benchmarks of the Intel Core i9-11900K against the Intel Core i7-11700K. This is because Intel no longer defines 10 cores as a maximum in the 11th generation of the Core i desktop processors, but only 8.

The Intel Core i9-11900K therefore only has 8 CPU cores and thus 2 less than its direct predecessor. The Intel Core i7-11700K remains like its predecessor with 8 CPU cores.

Since the base clock of the Intel Core i7-11700K only differs by 100 MHz from that of the Intel Core i9-11900K (3.4 GHz to 3.5 GHz), and the turbo frequencies are very similar (200-300 MHz deviation in favor of the Core i9), in the end there is only a very small increase in performance for the Intel Core i9-11900K. This is around 2-3 percent compared to the Intel Core i7.

The iGPU (internal graphics) of the two processors is also identical. An Intel Iris Xe Graphics 32 (Rocket Lake S) with 32 execution units (a maximum of 96 units would be possible in the largest expansion stage) and 256 shaders is used. With a computing power of around 0.7 TFLOPS, the graphics card is not even suitable for older games. It is positive that the new AV1 video codec can be decoded in hardware by the iGPU, which significantly reduces the system load when watching AV1-encoded videos.

Both desktop processors can address a maximum of 128 GB of DDR4-3200 RAM. Two memory channels (dual-channel mode) are supported in a maximum of 4 working memory modules. The memory's ECC error correction function is not supported.

The processors support PCIe 4.0, whereby the Intel Core i9 has 20 internal lines and the Intel Core i7 has only 16 lines. So if you want to connect a fast PCIe 4.0 x4 M.2 SSD to the system, you should pay attention to a suitable mainboard chipset with the Intel Core i7.

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