i9-12900K vs Athlon 900
Primary details
Comparing Athlon 900 and Core i9-12900K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 185 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 35.72 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i9 |
| Power efficiency | no data | 19.76 |
| Architecture codename | Thunderbird (1999−2000) | Alder Lake, Golden Cove, Gracemont (2021) |
| Release date | 6 March 2000 (24 years ago) | 27 October 2021 (3 years ago) |
| Launch price (MSRP) | $899 | $589 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon 900 and Core i9-12900K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 1 (Single-Core) | 16 (Hexadeca-Core) |
| Threads | 1 | 24 |
| Base clock speed | no data | 3.2 GHz |
| Boost clock speed | 0.9 GHz | 5.2 GHz |
| Bus type | no data | DMI 4.0 |
| Bus rate | no data | 8 × 16 GT/s |
| Multiplier | no data | 32 |
| L1 cache | 128 KB | 768 KB |
| L2 cache | 512 KB | 4 MB |
| L3 cache | 0 KB | 6 MB |
| Chip lithography | 180 nm | 10 nm |
| Die size | 102 mm2 | 215.25 mm2" |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 70 °C | 72 °C |
| Number of transistors | 22 million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Athlon 900 and Core i9-12900K compatibility with other computer components: 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 | 1 |
| Socket | A | FCLGA1700 |
| Power consumption (TDP) | 60 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon 900 and Core i9-12900K. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| SIPP | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Athlon 900 and Core i9-12900K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon 900 and Core i9-12900K are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 900 and Core i9-12900K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR4, DDR5 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 76.805 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel UHD Graphics 770 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.55 GHz |
| Execution Units | no data | 32 |
Graphics interfaces
Available interfaces and connections of Athlon 900 and Core i9-12900K integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Athlon 900 and Core i9-12900K integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | no data | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Athlon 900 and Core i9-12900K integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Athlon 900 and Core i9-12900K.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 6 March 2000 | 27 October 2021 |
| Physical cores | 1 | 16 |
| Threads | 1 | 24 |
| Chip lithography | 180 nm | 10 nm |
| Power consumption (TDP) | 60 Watt | 125 Watt |
Athlon 900 has 108.3% lower power consumption.
i9-12900K, on the other hand, has an age advantage of 21 year, 1500% more physical cores and 2300% more threads, and a 1700% more advanced lithography process.
We couldn't decide between Athlon 900 and Core i9-12900K. We've got no test results to judge.
Should you still have questions on choice between Athlon 900 and Core i9-12900K, ask them in Comments section, and we shall answer.
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