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Intel Atom C3558R vs Intel Core i9-9900K

Last updated: 2026-06-03

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank ?

Intel Atom C3558R

Rank ?

Intel Core i9-9900K

Multi-core performance

Rank ?

Intel Atom C3558R

Rank ?

Intel Core i9-9900K

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Cinebench 2024 (SC)
427 entries

Cinebench 2024 (MC)
422 entries

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

3DMark Timespy (iGPU)
534 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

Monero Hashrate
94 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

Specifications

At a glance

Wischen	Intel Atom C3558R	Intel Core i9-9900K
Family	Intel Atom (108)	Intel Core i9 (81)
CPU group	Intel Atom C3000 (20)	Intel Core i 9000 (34)
Architecture	Denverton	Coffee Lake S Refresh
Technology	14 nm	14 nm
Segment	Desktop	Desktop
Socket	BGA 1310	LGA 1151-2
Predecessor
Successor		Intel Core i9-10900K

CPU Cores and Base Frequency

Wischen	Intel Atom C3558R	Intel Core i9-9900K
CPU Cores / Threads	4 / 4	8 / 16
Hyperthreading / SMT	✗	✓
Core architecture	normal	normal
Cores:	4x	8x
Frequency:	2.40 GHz	3.60 GHz
Turbo (1 Core):		5.00 GHz
Turbo (All Cores):		4.70 GHz
L2-Cache	8.00 MB
L3-Cache		16.00 MB
Overclocking	✗	✓

Integrated graphics (iGPU)

Wischen	Intel Atom C3558R	Intel Core i9-9900K
GPU name	no iGPU	Intel UHD Graphics 630
GPU frequency		0.35 - 1.20 GHz
CUs / Shader	/	24 / 192
Raytracing	✗	✗
Max. displays		3
Max. GPU Memory		64 GB
Technology		14 nm
Release date		Q4/2017

NPU AI performance

Wischen	Intel Atom C3558R	Intel Core i9-9900K
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Atom C3558R	Intel Core i9-9900K
Memory	DDR4-2400 (38.4 GB/s)	DDR4-2666 (42.7 GB/s)
Max. Memory	256 GB	128 GB
Memory channels	2	2
ECC	Yes	No
PCIe	3.0 x 20	3.0 x 16
PCIe Bandwidth	19.7 GB/s	15.8 GB/s

Thermal Management

Wischen	Intel Atom C3558R	Intel Core i9-9900K
TDP	17 W	95 W
TDP (PL2)		119 W @ 28 s
TDP up
TDP down
T. junction max.	100 °C	100 °C

Technical details

Wischen	Intel Atom C3558R	Intel Core i9-9900K
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Linux	Windows 10, Windows 11, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2	SSE4.1, SSE4.2, AVX2
Release date	Q2/2020	Q4/2018
Release price	96 $	650 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Atom C3558R is 0 stars (0 ratings), while Intel Core i9-9900K has received 4.2 stars (109 ratings).

Click on the stars to rate one or both processors.

Intel Atom C3558R
4C / 4T · 2.40 GHz

★★★★★

Intel Core i9-9900K
8C / 16T · 3.60 - 5.00 GHz

★★★★★