intel core i9 12900k vs intel core i9 12950hx

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We compared two CPUs Intel Core i9 12900K (Desktop) 16-cores against Intel Core i9 12950HX (Laptop) 16-cores. In this comparison page, we check which of these two processor has better performance in benchmark results, Games, architecture, price 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

Key Differences

What are the key differences between Intel Core i9 12900K and Intel Core i9 12950HX
Advantages of Intel Core i9 12900K
  • 4% higher Turbo Boost frequency (5.2 GHz vs 5 GHz)
  • Unlocked multiplier
Advantages of Intel Core i9 12950HX
  • Newer released 1 years later
  • Consumes up to 56% less energy than the Intel Core i9 12900K – 55 vs 125 Watt

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
27409
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)

Specifications

Full technical specification of core i9 12900k and core i9 12950hx

General

Intel Core i9 12900K Intel Core i9 12950HX
Vendor Intel Intel
Released November 5 2021 May 10 2022
Type Desktop Laptop
instruction set x86-64 x86-64
Codename Alder Lake-S Alder Lake-HX
Socket FCLGA1700 FCBGA1964
Integrated GPU Intel UHD Graphics 770 Intel® UHD Graphics for 12th Gen Intel® Processors

Performance

Intel Core i9 12900K Intel Core i9 12950HX
Cores 16 16
Threads 24 24
Base Frequency 3.2 GHz 2.3 GHz
Turbo Boost Frequency 5.2 GHz 5 GHz
L1 Cache 80K (per core) 80K (per core)
L2 Cache 1.25 MB (per core) 1.25 MB (per core)
L3 Cache 30 MB (shared) 30 MB (shared)
Unlocked Multiplier Yes No

Power

Intel Core i9 12900K Intel Core i9 12950HX
Fabrication process Intel 7 nm Intel 7 nm
Power consumption (TDP) 125 W 55 W
Max. temperature 100°C 100°C

Memory support

Intel Core i9 12900K Intel Core i9 12950HX
Memory types DDR5, DDR4 DDR5-4800, DDR4-3200
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

iGPU

Intel Core i9 12900K Intel Core i9 12950HX
Integrated Graphics Intel UHD Graphics 770 Intel® UHD Graphics for 12th Gen Intel® Processors
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1.55 MHz 1.55 MHz
Shading Units 256 256
TMUs 16 16
ROPs 8 8
Execution Units 32 32
TGP 15 W 45 W
iGPU FLOPS
0.78 TFLOPS
0.74 TFLOPS

Misc

Intel Core i9 12900K Intel Core i9 12950HX
Official site Intel Core i9 12900K official page Intel Core i9 12950HX official page
PCI Express Version
PCI Express Lanes 20 20

Comments

So which CPU will you choose: Intel Core i9 12950HX or Intel Core i9 12900K?