Intel Core i9-11900KF vs AMD Ryzen 9 5900X

Comparative analysis of Intel Core i9-11900KF and AMD Ryzen 9 5900X 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.

 

Differences

Reasons to consider the Intel Core i9-11900KF

  • CPU is newer: launch date 4 month(s) later
  • Around 10% higher clock speed: 5.30 GHz vs 4.8 GHz
  • Around 5% higher maximum core temperature: 100°C vs 95 °C
  • Around 3% better performance in PassMark - Single thread mark: 3597 vs 3496
Specifications (specs)
Launch date 16 Mar 2021 vs 5 Nov 2020
Maximum frequency 5.30 GHz vs 4.8 GHz
Maximum core temperature 100°C vs 95 °C
Benchmarks
PassMark - Single thread mark 3597 vs 3496

Reasons to consider the AMD Ryzen 9 5900X

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 4 more cores, run more applications at once: 12 vs 8
  • 8 more threads: 24 vs 16
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm vs 14 nm
  • Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
  • 3x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 4x 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 54% better performance in PassMark - CPU mark: 39521 vs 25598
  • Around 13% better performance in 3DMark Fire Strike - Physics Score: 13401 vs 11854
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 12 vs 8
Number of threads 24 vs 16
Manufacturing process technology 7 nm vs 14 nm
L1 cache 768 KB vs 512 KB
L2 cache 6 MB vs 2 MB
L3 cache 64 MB vs 16 MB
Thermal Design Power (TDP) 105 Watt vs 125 Watt
Benchmarks
PassMark - CPU mark 39521 vs 25598
3DMark Fire Strike - Physics Score 13401 vs 11854

Compare benchmarks

CPU 1: Intel Core i9-11900KF
CPU 2: AMD Ryzen 9 5900X

PassMark - Single thread mark
CPU 1
CPU 2
3597
3496
PassMark - CPU mark
CPU 1
CPU 2
25598
39521
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
11854
13401
Name Intel Core i9-11900KF AMD Ryzen 9 5900X
PassMark - Single thread mark 3597 3496
PassMark - CPU mark 25598 39521
3DMark Fire Strike - Physics Score 11854 13401

Compare specifications (specs)

Intel Core i9-11900KF AMD Ryzen 9 5900X

Essentials

Architecture codename Rocket Lake Zen 3
Launch date 16 Mar 2021 5 Nov 2020
Launch price (MSRP) $513 - $524 $549
Place in performance rating 16 8
Processor Number i9-11900KF
Series 11th Generation Intel Core i9 Processors
Status Launched
Vertical segment Desktop Desktop
OPN PIB 100-100000061WOF
OPN Tray 100-000000061

Performance

64 bit support
Base frequency 3.50 GHz 3.7 GHz
Bus Speed 8 GT/s
L1 cache 512 KB 768 KB
L2 cache 2 MB 6 MB
L3 cache 16 MB 64 MB
Manufacturing process technology 14 nm 7 nm
Maximum core temperature 100°C 95 °C
Maximum frequency 5.30 GHz 4.8 GHz
Number of cores 8 12
Number of threads 16 24
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™)