Intel Core i9-11900KF vs AMD Ryzen 7 5800X

Comparative analysis of Intel Core i9-11900KF and AMD Ryzen 7 5800X processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

Intel Core i9-11900KF

AMD Ryzen 7 5800X

Differences

Reasons to consider the Intel Core i9-11900KF

CPU is newer: launch date 4 month(s) later
Around 13% higher clock speed: 5.30 GHz vs 4.7 GHz
Around 5% higher maximum core temperature: 100°C vs 95 °C
Around 3% better performance in PassMark - Single thread mark: 3538 vs 3445
Around 10% better performance in 3DMark Fire Strike - Physics Score: 8382 vs 7611

Specifications (specs)
Launch date	16 Mar 2021 vs 5 Nov 2020
Maximum frequency	5.30 GHz vs 4.7 GHz
Maximum core temperature	100°C vs 95 °C
Benchmarks
PassMark - Single thread mark	3538 vs 3445
3DMark Fire Strike - Physics Score	8382 vs 7611

Reasons to consider the AMD Ryzen 7 5800X

Processor is unlocked, an unlocked multiplier allows for easier overclocking
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm vs 14 nm
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 19% lower typical power consumption: 105 Watt vs 125 Watt
Around 11% better performance in PassMark - CPU mark: 27847 vs 25006

Specifications (specs)
Unlocked	Unlocked vs Locked
Manufacturing process technology	7 nm vs 14 nm
L2 cache	4 MB vs 2 MB
L3 cache	32 MB vs 16 MB
Thermal Design Power (TDP)	105 Watt vs 125 Watt
Benchmarks
PassMark - CPU mark	27847 vs 25006

Compare benchmarks

CPU 1: Intel Core i9-11900KF
CPU 2: AMD Ryzen 7 5800X

PassMark - Single thread mark

CPU 1

CPU 2

3538

3445

PassMark - CPU mark

CPU 1

CPU 2

25006

27847

3DMark Fire Strike - Physics Score

CPU 1

CPU 2

8382

7611

Name	Intel Core i9-11900KF	AMD Ryzen 7 5800X
PassMark - Single thread mark	3538	3445
PassMark - CPU mark	25006	27847
3DMark Fire Strike - Physics Score	8382	7611

Compare specifications (specs)

	Intel Core i9-11900KF	AMD Ryzen 7 5800X
Essentials
Architecture codename	Rocket Lake	Zen 3
Launch date	16 Mar 2021	5 Nov 2020
Launch price (MSRP)	$513 - $524	$449
Place in performance rating	443	473
Processor Number	i9-11900KF
Series	11th Generation Intel Core i9 Processors
Status	Launched
Vertical segment	Desktop	Desktop
OPN PIB		100-100000063WOF
OPN Tray		100-000000063
Performance
64 bit support
Base frequency	3.50 GHz	3.8 GHz
Bus Speed	8 GT/s
L1 cache	512 KB	512 KB
L2 cache	2 MB	4 MB
L3 cache	16 MB	32 MB
Manufacturing process technology	14 nm	7 nm
Maximum core temperature	100°C	95 °C
Maximum frequency	5.30 GHz	4.7 GHz
Number of cores	8	8
Number of threads	16	16
Unlocked
Memory
Max memory channels	2	2
Maximum memory bandwidth	50 GB/s	47.68 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-3200
ECC memory support
Compatibility
Configurable TDP-down	95 Watt
Configurable TDP-down Frequency	3.00 GHz
Max number of CPUs in a configuration	1
Package Size	37.5 mm x 37.5 mm
Sockets supported	FCLGA1200	AM4
Thermal Design Power (TDP)	125 Watt	105 Watt
Thermal Solution	PCG 2019A
Peripherals
Max number of PCIe lanes	20	20
PCI Express revision	4.0	4.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4	1x16+x4, 2x8+x4, 1x8+2x4+x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Thermal Monitoring
AMD SenseMI
AMD StoreMI technology
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)