Intel Core i9 14900K vs i9 12900H
86
out of 100
VS
56
out of 100
We compared two CPUs: the 3.2 GHz Intel Core i9 14900K (desktop) with 24-cores against the 2.5 GHz i9 12900H (laptop) with 14-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
The "iGPU" and "Power Efficiency" have a minor impact on the DeviceFacts Score for desktop CPU.
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
Value for money (Beta)
Key Differences
Advantages of Intel Core i9 14900K
- Supports up to 192 GB DDR5-5600 RAM
- Unlocked multiplier
- Has 10 more physical cores
- Newer - released 1 year and 9 months later
- Has 12 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
- Newer PCI Express version β 5.0
- 32% faster in a single-core Geekbench v6 test - 3171 vs 2397 points
- 20% higher Turbo Boost frequency (6 GHz vs 5 GHz)
Advantages of Intel Core i9 12900H
- More powerful Intel Iris Xe Graphics (96EU) integrated graphics: 2.2 vs 0.8 TFLOPS
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (17th and 157th place)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1940 MB/sec | 898.1 MB/sec |
| Clang compilation | 194.6 Klines/sec | 97.6 Klines/sec |
| HTML 5 Browser | 589.2 pages/sec | 270 pages/sec |
| PDF Renderer | 638.4 Mpixels/sec | 325.3 Mpixels/sec |
| Text processing | 318.7 pages/sec | 248.3 pages/sec |
| Background blur | 71.7 images/sec | 52.7 images/sec |
| Photo processing | 191.6 images/sec | 94.2 images/sec |
| Ray tracing | 41.7 Mpixels/sec | 23.8 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 209.3 GOps/sec | 91.3 GOps/sec |
| Floating point math | 152.1 GOps/sec | 66 GOps/sec |
| Find prime numbers | 228M Primes/sec | 104M Primes/sec |
| Random string sorting | 86.6M Strings/sec | 34.4M Strings/sec |
| Data encryption | 46.5 GBytes/sec | 18 GBytes/sec |
| Data compression | 785.8 MBytes/sec | 308.2 MBytes/sec |
| Physics | 3098 Frames/sec | 1700 Frames/sec |
| Extended instructions | 44.7B Matrices/sec | 18.4B Matrices/sec |
Blender
Blender CPU
Performance Per Watt
| Cinebench 2024 / Watt | 16.7 PPW | 21.9 PPW |
| Geekbench 6 Multi / Watt | 181 PPW | 265.9 PPW |
| Passmark CPU Mark / Watt | 466 PPW | 591 PPW |
| Blender / Watt | 4.1 PPW | 4.67 PPW |
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.
Recent User Tests
Intel Core i9 14900K
| Date | Benchmark | Result |
|---|---|---|
| π 2026-10-06 (Devansh) | Geekbench 6 CPU | 2993 / 18135 |
| π 2026-10-06 (Devansh) | Geekbench 7 CPU | 2611 / 21934 |
| π 2026-10-06 (Devansh) | Cinebench 2026 | 543 / 8307 |
| π 2026-02-24 (Tanvir) | Cinebench 2024 | 129 / 2086 |
| π 2026-01-31 (Kreuz) | Cinebench 2024 | 128 / 1976 |
Intel Core i9 12900H
| Date | Benchmark | Result |
|---|---|---|
| π 2025-11-21 (Robert L) | Cinebench 2024 | 104 / 765 |
| π 2025-05-02 (Toksik Vegeta) | Cinebench 2024 | 107 / 984 |
Specifications
Full technical specification of Intel Core i9 14900K and i9 12900HGeneral
| Vendor | Intel | Intel |
| Released | October 16, 2023 | January 4, 2022 |
| Type | Desktop | Laptop |
| Instruction Set | x86-64 | x86-64 |
| Codename | Raptor Lake Refresh | Alder Lake |
| Model number | i9-14900K | i9-12900H |
| Integrated GPU | UHD Graphics 770 | Iris Xe Graphics (96EU) |
| Rival Equivalent | - AMD Ryzen 9 7900X | - AMD Ryzen 9 6900HS |
| Successor | - Intel Core Ultra 9 285K | - Intel Core Ultra 9 288V |
Intel CPU rating (7th and 115th place)
CPU
| P-Cores | 8 | 6 |
| P-Threads | 16 | 12 |
| Base Frequency (P) | 3.2 GHz | 2.5 GHz |
| Turbo Boost Frequency (P) | 6 GHz | 5 GHz |
| E-Cores | 16 | 8 |
| E-Threads | 16 | 8 |
| Base Frequency (E) | 2.4 GHz | 1.8 GHz |
| Turbo Boost Frequency (E) | 4.4 GHz | 3.8 GHz |
| Total Cores | 24 | 14 |
| Total Threads | 32 | 20 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 32x | 25x |
| L1 Cache | 80K (per core) | 80K (per core) |
| L2 Cache | 2MB (per core) | 1280K (per core) |
| L3 Cache | 36MB (shared) | 24MB (shared) |
| Unlocked Multiplier | Yes | No |
Package
| Fabrication Process | 10 nm | 10 nm |
| TDP (PL1) | 125 W | 35-45 W (configurable) |
| Max. Boost TDP (PL2) | 253 W | 115 W |
| Socket | LGA-1700 | BGA-1744 |
| Peak Temperature | 100Β°C | 100Β°C |
Desktop CPU ranking (#13th place)
Laptop processors ranking (#152nd place)
iGPU
| Integrated Graphics | Intel UHD Graphics 770 | Intel Iris Xe Graphics (96EU) |
| GPU Base Clock | 300 MHz | 300 MHz |
| GPU Boost Clock | 1650 MHz | 1450 MHz |
| Shading Units | 256 | 768 |
| TMUs | 16 | 48 |
| ROPs | 8 | 24 |
| Execution Units | 32 | 96 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory Types | - DDR5-5600 - DDR4-3200 |
- DDR5-4800 - DDR4-3200 - LPDDR5-5200 - LPDDR4x-4267 |
| Max. Memory Size | 192 GB | 64 GB |
| Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 89.6 GB/s | - |
| ECC Support | Yes | No |
Misc
| Official Site | Intel Core i9 14900K official page | Intel Core i9 12900H official page |
| PCI Express Version | 5.0 | 4.0 |
| PCI Express Lanes | 20 | 28 |
Cast your vote
Total votes: < 1