intel core i9 12900k vs intel core i9 11900
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We compared two CPUs Intel Core i9 12900K (Desktop) 16-cores against Intel Core i9 11900 (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 0 years later
- Has 8 more physical cores
- Around 26.8 GB/s (35%) higher theoretical memory bandwidth
- Has 14 MB larger L3 cache size
- 2% higher Turbo Boost frequency (5.2 GHz vs 5.1 GHz)
- More modern manufacturing process – 7 versus 14
- Unlocked multiplier
Advantages of Intel Core i9 11900
- Consumes up to 48% less energy than the Intel Core i9 12900K – 65 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 11900 | |
| Vendor | Intel | Intel |
| Released | November 5 2021 | March 16 2021 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake-S | Rocket Lake |
| Socket | FCLGA1700 | FCLGA1200 |
| Integrated GPU | Intel UHD Graphics 770 | Intel UHD Graphics 750 |
Performance
| Intel Core i9 12900K | Intel Core i9 11900 | |
| Cores | 16 | 8 |
| Threads | 24 | 16 |
| Base Frequency | 3.2 GHz | 2.5 GHz |
| Turbo Boost Frequency | 5.2 GHz | 5.1 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 | No |
Power
| Intel Core i9 12900K | Intel Core i9 11900 | |
| Fabrication process | Intel 7 nm | 14 nm |
| Power consumption (TDP) | 125 W | 65 W |
| Max. temperature | 100°C | 100°C |
Memory support
| Intel Core i9 12900K | Intel Core i9 11900 | |
| Memory types | DDR5, DDR4 | DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 76.8 GB/s | 50 GB/s |
| ECC Support | Yes | No |
iGPU
| Intel Core i9 12900K | Intel Core i9 11900 | |
| Integrated Graphics | Intel UHD Graphics 770 | Intel UHD Graphics 750 |
| GPU Base Clock | 300 MHz | 300 MHz |
| GPU Boost Clock | 1.55 MHz | 1.3 MHz |
| Shading Units | 256 | 256 |
| TMUs | 16 | 64 |
| ROPs | 8 | 32 |
| Execution Units | 32 | 32 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Misc
| Intel Core i9 12900K | Intel Core i9 11900 | |
| Official site | Intel Core i9 12900K official page | Intel Core i9 11900 official page |
| PCI Express Version | 4 | |
| PCI Express Lanes | 20 | 20 |