Core i9-12900KS: specs and benchmarks
Aggregate performance score
Core i9-12900KS provides good benchmark performance at 27.67% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Core i9-12900KS sales 5 April 2022. Based on an Alder Lake-S architecture, this desktop processor is primarily aimed at home systems. It has 16 cores and 24 threads, and is based on Intel 7 manufacturing technology, with a max turbo frequency of 5300 MHz and an unlocked multiplier.
Compatibility-wise, this is FCLGA1700 processor with a TDP of 150 Watt and a maximum temperature of 72 °C. It supports DDR5-4800, DDR4-3200 memory.
Primary details
Core i9-12900KS processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 175 | |
| Place by popularity | not in top-100 | |
| Market segment | Desktop processor | |
| Power efficiency | 17.46 | of 100.00 (Core Ultra 7 164U) |
| Architecture codename | Alder Lake-S (2022) | |
| Release date | 5 April 2022 (2 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 16 (Hexadeca-Core) | |
| Threads | 24 | |
| Base clock speed | 3.4 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 5.3 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 80K (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 1.25 MB (per core) | of 2 MB (Xeon 6980P) |
| L3 cache | 30 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | Intel 7 nm | of 3 nm (Core Ultra 9 285K) |
| Die size | 215 mm2 | |
| Maximum core temperature | 90 °C | of 110 °C (Core Ultra 9 185H) |
| Maximum case temperature (TCase) | 72 °C | of 105 °C (Core i7-5950HQ) |
| 64 bit support | + | |
| Windows 11 compatibility | + | |
| Unlocked multiplier | + |
Compatibility
Information on Core i9-12900KS compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | of 8 (Xeon Platinum 8454H) |
| Socket | FCLGA1700 | |
| Power consumption (TDP) | 150 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by Core i9-12900KS. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | |
| AES-NI | + | |
| AVX | + | |
| Enhanced SpeedStep (EIST) | + | |
| Speed Shift | + | |
| Turbo Boost Technology | 2.0 | |
| Hyper-Threading Technology | + | |
| TSX | + | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Turbo Boost Max 3.0 | + | |
| Deep Learning Boost | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| EDB | + | |
| Secure Key | + | |
| OS Guard | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + | |
| EPT | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Core i9-12900KS's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR5-4800, DDR4-3200 | |
| Maximum memory size | 128 GB | of 6 TiB (EPYC 9654) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 76.8 GB/s | of 460.8 GB/s (EPYC 9654) |
| ECC memory support | + |
Graphics specifications
General parameters of a GPU integrated into Core i9-12900KS.
| Integrated graphics card | Intel UHD Graphics 770 | |
| Quick Sync Video | + | |
| Clear Video HD | + | |
| Graphics max frequency | 1.55 GHz | |
| Execution Units | 32 |
Graphics interfaces
Available interfaces and connections of Core i9-12900KS's integrated GPU.
| Number of displays supported | 4 |
Graphics image quality
Maximum display resolutions supported by Core i9-12900KS's integrated GPU, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096 x 2160 @ 60Hz | |
| Max resolution over eDP | 5120 x 3200 @ 120Hz | |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core i9-12900KS's integrated GPU, sometimes API versions are included.
| DirectX | 12 | |
| OpenGL | 4.5 |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 5.0 and 4.0 | |
| PCI Express lanes | 20 | of 128 (EPYC 9655P) |
Benchmark performance
Single-core and multi-core benchmark results of Core i9-12900KS. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Send your test results of Core i9-12900KS.
AMD equivalent
According to our data, the closest AMD alternative to Core i9-12900KS is Ryzen 9 5900XT, which is nearly equal in speed and higher by 5 positions in our ranking.
Here are some closest AMD rivals to Core i9-12900KS:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Core i9-12900KS, according to our PC configuration statistics.
These are the fastest graphics cards for Core i9-12900KS in our user configuration statistics. There is a total of 8005 configurations using Core i9-12900KS in our database.
