Intel Core i9 12900KF vs AMD Ryzen 9 7950X

We compared two 16-core desktop CPUs: the 3.2 GHz Intel Core i9 12900KF against the 4.5 GHz AMD Ryzen 9 7950X. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
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 7950X and 12900KF
Advantages of Intel Core i9 12900KF
  • Around 3.7 GB/s (5%) higher theoretical memory bandwidth
Advantages of AMD Ryzen 9 7950X
  • Newer - released 10-months later
  • Has 34 MB larger L3 cache size
  • More modern manufacturing process – 5 versus 10 nanometers
  • Includes an integrated GPU Radeon Graphics (Ryzen 7000)
  • 12% higher Turbo Boost frequency (5.7 GHz vs 5.1 GHz)
  • 12% faster in a single-core Geekbench v5 test - 2219 vs 1975 points

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
38539
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
63785
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
23704
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Specifications

Full technical specification of Intel Core i9 12900KF and AMD Ryzen 9 7950X

General

Vendor Intel AMD
Released October 27, 2021 August 29, 2022
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Alder Lake Zen 4 (Raphael)
Model number i9-12900KF -
Integrated GPU No Radeon Graphics (Ryzen 7000)

CPU

Performance Cores
P-Cores 8 16
P-Threads 16 32
Base Frequency (P) 3.2 GHz 4.5 GHz
Turbo Boost Frequency (P) 5.1 GHz 5.7 GHz
Efficient Cores
E-Cores 8 -
E-Threads 8 -
Base Frequency (E) 2.4 GHz -
Turbo Boost Frequency (E) 3.9 GHz -
Total
Total Cores 16 16
Total Threads 24 32
Bus Frequency 100 MHz 100 MHz
Multiplier 32x 45x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 14MB (shared) 1MB (per core)
L3 Cache 30MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes

Package

Transistors - 6.57 billions
Fabrication process 10 nm 5 nm
Socket LGA-1700 AM5
TDP 125 W 170 W
Max. Boost TDP 241 W 230 W
Peak temperature 100°C 95°C

iGPU

Integrated Graphics - Radeon Graphics (Ryzen 7000)
GPU Base Clock - 1500 MHz
GPU Boost Clock - 2200 MHz
Shading Units - 128
TMUs - 8
ROPs - 4
Execution Units - 2
TGP - 15 W
iGPU FLOPS
0.54 TFLOPS

Memory Support

Memory types DDR5-4800, DDR4-3200 DDR5-5200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s 73.1 GB/s
ECC Support Yes Yes

Misc

Official site Intel Core i9 12900KF official page AMD Ryzen 9 7950X official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 28

Cast your vote

Choose between two processors
1 (16.7%)
5 (83.3%)
Total votes: 6

Comments

So which CPU will you choose: AMD Ryzen 9 7950X or Intel Core i9 12900KF?