Intel Core i7 12700K vs AMD Ryzen 9 5900X

We compared two 12-core desktop CPUs: the 3.6 GHz Intel Core i7 12700K against the 3.7 GHz AMD Ryzen 9 5900X. 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 12700K
Advantages of Intel Core i7 12700K
  • Newer - released 1-year and 1-month later
  • Around 29.12 GB/s (61%) higher theoretical memory bandwidth
  • Newer PCI Express version – 5.0
  • Includes an integrated GPU Intel UHD Graphics 770
  • More than 10° C higher critical temperature
  • 14% faster in a single-core Geekbench v5 test - 1936 vs 1704 points
  • 4% higher Turbo Boost frequency (5 GHz vs 4.8 GHz)
Advantages of AMD Ryzen 9 5900X
  • Has 39 MB larger L3 cache size
  • More modern manufacturing process – 7 versus 10 nanometers
  • Consumes up to 16% less energy than the Core i7 12700K – 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 i7 12700K and AMD Ryzen 9 5900X


Vendor Intel AMD
Released October 27, 2021 October 8, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Alder Lake-S Vermeer
Model number i7-12700K -
Socket LGA-1700 AM4
Integrated GPU UHD Graphics 770 No


Cores 12 12
Threads 20 24
Base Frequency 3.6 GHz 3.7 GHz
Turbo Boost Frequency 5 GHz 4.8 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 37x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 12MB (shared) 512K (per core)
L3 Cache 25MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes


Fabrication process 10 nm 7 nm
TDP 125 W 105 W
Max. temperature 100°C 90°C


Integrated Graphics Intel UHD Graphics 770 -
GPU Base Clock 300 MHz -
GPU Boost Clock 1500 MHz -
Shading Units 256 -
TMUs 16 -
ROPs 8 -
Execution Units 32 -
TGP 15 W -

Memory support

Memory types DDR5-4800, DDR4-3200 DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 47.68 GB/s
ECC Support Yes Yes


Official site Intel Core i7 12700K official page AMD Ryzen 9 5900X official page
PCI Express Version 5.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
223 (56%)
175 (44%)
Total votes: 398


So which CPU will you choose: AMD Ryzen 9 5900X or Intel Core i7 12700K?
Mike 21 December 2021 16:26
I'd buy the 5900x if it came down in price to equal the 12700k...which seems to outperform the 5900k...until then they can keep it...price gouging works BOTH ways.
+12 Reply
Kam B 26 November 2021 20:45
Why on the 12700k's Intel Ark website it says that it's a 7 nm processor and not 10 nm someone pls explain.
+14 Reply
Root 26 November 2021 21:07
We've made a mistake, now it's fixed. Thanks for pointing it out.
+9 Reply
gamma 02 March 2022 00:32
they changed the name of their intel 10nm enhanced fin-fet node to "INTEL 7"
0 Reply
Emre 06 March 2022 00:27
Intel just fooling consumers and creating confusion by naming their 10nm process to "Intel 7" it is just branding. There is no meaning of the number 7, it is just a plain 10nm process Intel trying to develop on their mobile cpus for 4 generations. There were 10nm processors on their 8th gen.
0 Reply
Kam B 24 March 2022 23:47
Emre, We really got some AMD Fanboys up in here I actually like AMD Graphics Cards more than Nvidia in my opinion, but Intel has the lead right now in performance and what's said is a 10 nm Processor beating a 7 nm processor, even by a tiny bit. To be honest, right now Intel got more Processors at a better value and performance than AMD anyways good Luck.
+3 Reply