i9-14900KS vs Atom E645C
Primary details
Comparing Atom E645C and Core i9-14900KS processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 69 |
| Place by popularity | not in top-100 | 8 |
| Market segment | Laptop | Desktop processor |
| Power efficiency | no data | 24.78 |
| Architecture codename | Stellarton (2010) | Raptor Lake-R (2023−2024) |
| Release date | 22 November 2010 (14 years ago) | March 2024 (recently) |
| Launch price (MSRP) | no data | $689 |
Detailed specifications
Atom E645C and Core i9-14900KS 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) | 24 (Tetracosa-Core) |
| Threads | 2 | 32 |
| Base clock speed | no data | 3.2 GHz |
| Boost clock speed | 1 GHz | 5.9 GHz |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 0 KB | 36 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 26 mm2 | 257 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 47 million | no data |
| 64 bit support | - | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Atom E645C and Core i9-14900KS 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 | Intel BGA1466 | FCLGA1700 |
| Power consumption (TDP) | 4 Watt | 150 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E645C and Core i9-14900KS. 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 | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Atom E645C and Core i9-14900KS 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 Atom E645C and Core i9-14900KS 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 Atom E645C and Core i9-14900KS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR5-5600, DDR4-3200 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 89.6 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel GMA 600 | Intel UHD Graphics 770 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.65 GHz |
| Execution Units | no data | 32 |
Graphics interfaces
Available interfaces and connections of Atom E645C and Core i9-14900KS integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Atom E645C and Core i9-14900KS 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 Atom E645C and Core i9-14900KS integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Atom E645C and Core i9-14900KS.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Physical cores | 1 | 24 |
| Threads | 2 | 32 |
| Power consumption (TDP) | 4 Watt | 150 Watt |
Atom E645C has 3650% lower power consumption.
i9-14900KS, on the other hand, has 2300% more physical cores and 1500% more threads.
We couldn't decide between Atom E645C and Core i9-14900KS. We've got no test results to judge.
Be aware that Atom E645C is a notebook processor while Core i9-14900KS is a desktop one.
Should you still have questions on choice between Atom E645C and Core i9-14900KS, ask them in Comments section, and we shall answer.
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