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Intel Core i9-12900H vs Intel Core i9-14900HX: Comparison
What is the difference between Core i9-12900H and Core i9-14900HX?
L3 cache is where these two genuinely part company, Core i9-12900H 24 MB against Core i9-14900HX 36 MB, a 33% lead for Core i9-14900HX. They differ on p-core boost clock too, 5 GHz on the Core i9-12900H versus 5.8 GHz on the Core i9-14900HX. They differ on e-core boost clock too, 3.8 GHz on the Core i9-12900H versus 4.1 GHz on the Core i9-14900HX. P-core base clock is not the same on both, 2.5 GHz on the Core i9-12900H versus 2.2 GHz on the Core i9-14900HX. They differ on e-core base clock too, 1.8 GHz on the Core i9-12900H versus 1.6 GHz on the Core i9-14900HX.
Which should you buy, Core i9-12900H or Core i9-14900HX?
The Core i9-12900H is the one to take for premium laptops and everyday productivity, though it is not built for ultra-thin fanless laptops and maximum battery life. Buy the Core i9-14900HX for high-end gaming laptops and mobile content creation, though it is the wrong buy for thin-and-light laptops and battery-life-focused use. Our rating of the Core i9-12900H (8.3/10): the Intel Core i9-12900H is a well-rounded performance mobile chip, suited to premium laptops balancing power and portability. Our rating of the Core i9-14900HX (8.6/10): the Intel Core i9-14900HX brings desktop-class core counts to a mobile chassis, a strong pick for high-end gaming and creator laptops.
What Core i9-12900H and Core i9-14900HX have in common
The common ground is wider than the gap: integrated graphics, form factor, market segment, smt enabled and memory type are identical here. They match on 3 further specifications as well.
Frequently asked questions
Do the Core i9-12900H and Core i9-14900HX differ on total cores?
Yes. Total Cores reads 14 on the Core i9-12900H versus 24 on the Core i9-14900HX.
Is the Memory Channels the same on the Core i9-12900H and Core i9-14900HX?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- Intel Core i9-12900H
- Laptop
- Intel Core i9-14900HX
- Laptop
Codename
- Intel Core i9-12900H
- Alder Lake
- Intel Core i9-14900HX
- Raptor Lake
Release Year
- Intel Core i9-12900H
- 2022
- Intel Core i9-14900HX
- 2024
TDP
- Intel Core i9-12900H
- 45 W
- Intel Core i9-14900HX
- 55 W
iGPU
- Intel Core i9-12900H
- Intel Iris Xe Graphics
- Intel Core i9-14900HX
- Intel UHD Graphics for 14th Gen Intel Processors
Market Segment
- Intel Core i9-12900H
- Laptop
- Intel Core i9-14900HX
- Laptop
Microarchitecture
- Intel Core i9-12900H
- Alder Lake
- Intel Core i9-14900HX
- Raptor Lake Refresh
Socket
- Intel Core i9-12900H
- FCBGA1744
- Intel Core i9-14900HX
- FCBGA1964
Process Node
- Intel Core i9-12900H
- 10 nm
- Intel Core i9-14900HX
- 7 nm
Total Cores
- Intel Core i9-12900H
- 14
- Intel Core i9-14900HX
- 24Best
Performance Cores
- Intel Core i9-12900H
- 6
- Intel Core i9-14900HX
- 8Best
Efficiency Cores
- Intel Core i9-12900H
- 8
- Intel Core i9-14900HX
- 16Best
Total Threads
- Intel Core i9-12900H
- 20
- Intel Core i9-14900HX
- 32Best
SMT Enabled
- Intel Core i9-12900H
- Yes
- Intel Core i9-14900HX
- Yes
P-Core Base Clock
- Intel Core i9-12900H
- 2.5 GHz
- Intel Core i9-14900HX
- 2.2 GHz
P-Core Boost Clock
- Intel Core i9-12900H
- 5 GHz
- Intel Core i9-14900HX
- 5.8 GHz
E-Core Base Clock
- Intel Core i9-12900H
- 1.8 GHz
- Intel Core i9-14900HX
- 1.6 GHz
E-Core Boost Clock
- Intel Core i9-12900H
- 3.8 GHz
- Intel Core i9-14900HX
- 4.1 GHz
Unlocked Multiplier
- Intel Core i9-12900H
- No
- Intel Core i9-14900HX
- Yes
L3 Cache
- Intel Core i9-12900H
- 24 MB-33%
- Intel Core i9-14900HX
- 36 MBBest
Base Power
- Intel Core i9-12900H
- 45 W
- Intel Core i9-14900HX
- 55 W
Max Turbo Power
- Intel Core i9-12900H
- 115 W
- Intel Core i9-14900HX
- 157 W
Memory Type
- Intel Core i9-12900H
- DDR5 or DDR4
- Intel Core i9-14900HX
- DDR5 or DDR4
Max Memory Speed
- Intel Core i9-12900H
- 4800 MT/s
- Intel Core i9-14900HX
- 5600 MT/sBest
Memory Channels
- Intel Core i9-12900H
- 2
- Intel Core i9-14900HX
- 2
Max Memory Capacity
- Intel Core i9-12900H
- 64 GB
- Intel Core i9-14900HX
- 192 GBBest
Integrated Graphics
- Intel Core i9-12900H
- Yes
- Intel Core i9-14900HX
- Yes
iGPU Model
- Intel Core i9-12900H
- Intel Iris Xe Graphics
- Intel Core i9-14900HX
- Intel UHD Graphics for 14th Gen Intel Processors
iGPU Compute Units
- Intel Core i9-12900H
- 96
- Intel Core i9-14900HX
- 32
Copilot Plus Certified
- Intel Core i9-12900H
- No
- Intel Core i9-14900HX
- No
PCIe Generation
- Intel Core i9-12900H
- PCIe 4.0
- Intel Core i9-14900HX
- PCIe 5.0
PCIe Lanes
- Intel Core i9-12900H
- 20
- Intel Core i9-14900HX
- 20
Which one should you pick?
Choose 12900H if you want the higher memory channels (2 vs 2) and the higher PCIe lanes (20 vs 20).
Choose 14900HX if you want the higher L3 cache (36 MB vs 24 MB).
Verdict
Intel Core i9-12900H
8.3 / 10 Expert Rating
The Intel Core i9-12900H is a well-rounded performance mobile chip, suited to premium laptops balancing power and portability.
Intel Core i9-14900HX
8.6 / 10 Expert Rating
The Intel Core i9-14900HX brings desktop-class core counts to a mobile chassis, a strong pick for high-end gaming and creator laptops.