AMD Ryzen 7 5800X3D VS Intel Core i9-11900K

Comparison of video cards AMD Ryzen 7 5800X3D vs Intel Core i9-11900K in benchmarks and specifications.

Differences Specifications Benchmarks

Differences

Top features of AMD Ryzen 7 5800X3D

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Performance per watt

105 W 125 W

About 1.19 0.97 times less performance per watt

Top features of Intel Core i9-11900K

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Higher clock speed

3.50 GHz 3.40 GHz

Around 3% better clock speed

Specifications

Complete list of technical specifications

AMD Ryzen 7 5800X3D Intel Core i9-11900K

CPU generation and family

Let's find out which one of AMD Ryzen 7 5800X3D and Intel Core i9-11900K is of a more recent generation, and what segment it belongs to.

Specification	Value
Name	AMD Ryzen 7 5800X3D Intel Core i9-11900K
Family	AMD Ryzen 7 Intel Core i9
CPU group	AMD Ryzen 5000 Intel Core i 11000
Segment	Desktop / Server Desktop / Server
Generation	4 11
Predecessor	-- Intel Core i9-10900K
Successor	AMD Ryzen 7 7800X3D Intel Core i9-12900K

CPU Cores and Base Frequency

In this block we are going to compare AMD Ryzen 7 5800X3D vs Intel Core i9-11900K by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

Specification	Value
Core architecture	normal normal
Overclocking	No Yes
Frequency	3.40 GHz 3.50 GHz

Internal Graphics

Common specifications for integrated graphics cards in AMD Ryzen 7 5800X3D and Intel Core i9-11900K along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

Specification	Value
GPU name	no iGPU Intel UHD Graphics 750
GPU frequency	0.35 GHz
GPU (Turbo)	No turbo 1.30 GHz
Execution units	32
Shader	256
Max. displays	3
Generation	12
Technology	14 nm
Release date	Q1/2021

Hardware codec support

Let's compare the support of video codecs between AMD Ryzen 7 5800X3D and Intel Core i9-11900K. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

Specification	Value
h265 / HEVC (8 bit)	No Decode / Encode
h265 / HEVC (10 bit)	No Decode / Encode
h264	No Decode / Encode
VP8	No Decode
VP9	No Decode / Encode
AV1	No Decode
AVC	No Decode / Encode
VC-1	No Decode
JPEG	No Decode / Encode

Memory & PCIe

To choose the best model between AMD Ryzen 7 5800X3D and Intel Core i9-11900K you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

Specification	Value
Memory type	DDR4-3200 DDR4-3200
Max. Memory	128 GB 128 GB
Memory channels	2 (Dual Channel) 2
ECC	Yes No

Thermal Management

Let's find out what TDP value would be better for AMD Ryzen 7 5800X3D or Intel Core i9-11900K? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

Specification	Value
TDP (PL1)	105 W 125 W
TDP (PL2)	-- 251 W / 56 s
TDP down	-- 95 W
Tjunction max.	90 \xc2\xb0C 100 °C

Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Ryzen 7 5800X3D and Intel Core i9-11900K CPUs along with a list of ISA extensions.

Specification	Value
Technology	7 nm 14 nm
Socket	AM4 (LGA 1331) LGA 1200
L2-Cache	4.00 MB 4.00 MB
L3-Cache	96.00 MB 16.00 MB
Architecture	Vermeer (Zen 3) Rocket Lake S
Virtualization	AMD-V, SVM VT-x, VT-x EPT, VT-d
Instruction set (ISA)	x86-64 (64 bit) x86-64 (64 bit)
ISA extensions	SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4.1, SSE4.2, AVX2, AVX-512
Release date	Q4/2020 Q1/2021