Intel Core i9 12900K vs i7 12700

We compared two desktop CPUs: the 3.2 GHz Intel Core i9 12900K with 16-cores against the 2.1 GHz i7 12700 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 12700 and 12900K
Advantages of Intel Core i9 12900K
  • Unlocked multiplier
  • Has 4 more physical cores
  • Has 5 MB larger L3 cache size
  • 8% higher Turbo Boost frequency (5.2 GHz vs 4.8 GHz)
  • 14% faster in a single-core Geekbench v5 test - 1982 vs 1737 points
Advantages of Intel Core i7 12700
  • Consumes up to 48% less energy than the Core i9 12900K – 65 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 12900K and i7 12700


Vendor Intel Intel
Released October 27, 2021 January 1, 2022
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Alder Lake-S Alder Lake-S
Model number i9-12900K i7-12700
Socket LGA-1700 LGA-1700
Integrated GPU UHD Graphics 770 UHD Graphics 770


Cores 16 12
Threads 24 20
Base Frequency 3.2 GHz 2.1 GHz
Turbo Boost Frequency 5.2 GHz 4.8 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 32x 21x
L1 Cache 64K (per core) 80K (per core)
L2 Cache 14MB (shared) 12MB (shared)
L3 Cache 30MB (shared) 25MB (shared)
Unlocked Multiplier Yes No


Fabrication process 10 nm 10 nm
TDP 125 W 65 W
Max. temperature 100°C 100°C


Integrated Graphics Intel UHD Graphics 770 Intel UHD Graphics 770
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1550 MHz 1500 MHz
Shading Units 256 256
TMUs 16 16
ROPs 8 8
Execution Units 32 32
TGP 15 W 15 W

Memory support

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


Official site Intel Core i9 12900K official page Intel Core i7 12700 official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
10 (33.3%)
20 (66.7%)
Total votes: 30


So which CPU will you choose: Intel Core i7 12700 or i9 12900K?