Intel Core i9 11900K vs AMD Ryzen 9 5900X

We compared two desktop CPUs: the 3.5 GHz Intel Core i9 11900K with 8-cores against the 3.7 GHz AMD Ryzen 9 5900X with 12-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 5900X and 11900K
Advantages of Intel Core i9 11900K
  • Newer - released 5-months later
  • Includes an integrated GPU Intel UHD Graphics 750
  • More than 10° C higher critical temperature
  • 10% higher Turbo Boost frequency (5.3 GHz vs 4.8 GHz)
  • 11% faster in a single-core Geekbench v5 test - 1830 vs 1644 points
  • Around 2.32 GB/s (5%) higher theoretical memory bandwidth
Advantages of AMD Ryzen 9 5900X
  • Has 48 MB larger L3 cache size
  • More modern manufacturing process – 7 versus 14 nanometers
  • Has 4 more physical cores
  • Consumes up to 16% less energy than the Core i9 11900K – 105 vs 125 Watt


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
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Full technical specification of Intel Core i9 11900K and AMD Ryzen 9 5900X


Vendor Intel AMD
Released March 16, 2021 October 8, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Rocket Lake Vermeer
Model number i9-11900K -
Socket LGA-1200 AM4
Integrated GPU UHD Graphics 750 No


Cores 8 12
Threads 16 24
Base Frequency 3.5 GHz 3.7 GHz
Turbo Boost Frequency 5.3 GHz 4.8 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 35x 37x
Bus Bandwidth 8 GT/s -
L1 Cache 64K (per core) 64K (per core)
L2 Cache 512K (per core) 512K (per core)
L3 Cache 16MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes


Fabrication process 14 nm 7 nm
TDP 125 W 105 W
Max. temperature 100°C 90°C


Integrated Graphics Intel UHD Graphics 750 -
GPU Base Clock 300 MHz -
GPU Boost Clock 1300 MHz -
Shading Units 256 -
TMUs 64 -
ROPs 32 -
Execution Units 32 -
TGP 15 W -
Max. Resolution 3840x2160 - 60 Hz -

Memory support

Memory types DDR4-3200 DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 50 GB/s 47.68 GB/s
ECC Support No Yes


Official site Intel Core i9 11900K official page AMD Ryzen 9 5900X official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
88 (16.8%)
437 (83.2%)
Total votes: 525


So which CPU will you choose: AMD Ryzen 9 5900X or Intel Core i9 11900K?
joe 01 October 2021 14:19
intel is an absolute joke rn they need to pull up their socks and start to actually make products that can compete with amd
+10 Reply