intel core i9 12900k vs intel core i9 9900k
VS
We compared two CPUs Intel Core i9 12900K (Desktop) 16-cores against Intel Core i9 9900K (Desktop) 8-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
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Key Differences
Advantages of Intel Core i9 12900K
- Newer released 3 years later
- Has 8 more physical cores
- Around 35.2 GB/s (46%) higher theoretical memory bandwidth
- Has 14 MB larger L3 cache size
- 4% higher Turbo Boost frequency (5.2 GHz vs 5 GHz)
- More modern manufacturing process – 7 versus 14
Advantages of Intel Core i9 9900K
- Consumes up to 24% less energy than the Intel Core i9 12900K – 95 vs 125 Watt
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)
Specifications
General
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Vendor | Intel | Intel |
| Released | November 5 2021 | October 8 2018 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake-S | Coffee Lake-R |
| Socket | FCLGA1700 | FCLGA1151 |
| Integrated GPU | Intel UHD Graphics 770 | Intel UHD Graphics 630 |
Performance
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Cores | 16 | 8 |
| Threads | 24 | 16 |
| Base Frequency | 3.2 GHz | 3.6 GHz |
| Turbo Boost Frequency | 5.2 GHz | 5 GHz |
| L1 Cache | 80K (per core) | 64K (per core) |
| L2 Cache | 1.25 MB (per core) | 256K (per core) |
| L3 Cache | 30 MB (shared) | 16 MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Power
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Fabrication process | Intel 7 nm | 14 nm |
| Power consumption (TDP) | 125 W | 95 W |
| Max. temperature | 100°C | 100°C |
Memory support
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Memory types | DDR5, DDR4 | DDR4 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 76.8 GB/s | 41.6 GB/s |
| ECC Support | Yes | No |
iGPU
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Integrated Graphics | Intel UHD Graphics 770 | Intel UHD Graphics 630 |
| GPU Base Clock | 300 MHz | 350 MHz |
| GPU Boost Clock | 1.55 MHz | 1.2 MHz |
| Shading Units | 256 | 192 |
| TMUs | 16 | 24 |
| ROPs | 8 | 3 |
| Execution Units | 32 | |
| TGP | 15 W | 15 W |
iGPU FLOPS
Misc
| Intel Core i9 12900K | Intel Core i9 9900K | |
| Official site | Intel Core i9 12900K official page | Intel Core i9 9900K official page |
| PCI Express Version | 3 | |
| PCI Express Lanes | 20 | 16 |