Celeron J4125 vs i9-9900KF
Aggregate performance score
Core i9-9900KF outperforms Celeron J4125 by a whopping 518% based on our aggregate benchmark results.
Primary details
Comparing Core i9-9900KF and Celeron J4125 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 675 | 1984 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.21 | 5.39 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i9 | no data |
| Power efficiency | 11.46 | 17.60 |
| Architecture codename | Coffee Lake-R (2018−2019) | Gemini Lake Refresh (2019) |
| Release date | 8 January 2019 (5 years ago) | 4 November 2019 (5 years ago) |
| Launch price (MSRP) | $488 | $107 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-9900KF has 52% better value for money than Celeron J4125.
Detailed specifications
Core i9-9900KF and Celeron J4125 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 | 8 (Octa-Core) | 4 (Quad-Core) |
| Threads | 16 | 4 |
| Base clock speed | 3.6 GHz | 2 GHz |
| Boost clock speed | 5 GHz | 2.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| L1 cache | 64K (per core) | 56 KB (per core) |
| L2 cache | 256K (per core) | 4 MB (shared) |
| L3 cache | 16 MB (shared) | 4 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | no data | 93 mm2 |
| Maximum core temperature | 100 °C | 105 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-9900KF and Celeron J4125 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 (Uniprocessor) | 1 |
| Socket | FCLGA1151 | FCBGA1090 |
| Power consumption (TDP) | 95 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-9900KF and Celeron J4125. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Smart Response | no data | - |
| GPIO | no data | + |
| Turbo Boost Max 3.0 | no data | - |
Security technologies
Core i9-9900KF and Celeron J4125 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | + |
| Secure Key | + | + |
| MPX | + | + |
| Identity Protection | + | + |
| SGX | Yes with Intel® ME | Yes with Intel® ME |
| OS Guard | + | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-9900KF and Celeron J4125 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-9900KF and Celeron J4125. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4 |
| Maximum memory size | 128 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 42.671 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 600 |
| Max video memory | no data | 8 GB |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 750 MHz |
| Execution Units | no data | 12 |
Graphics interfaces
Available interfaces and connections of Core i9-9900KF and Celeron J4125 integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| MIPI-DSI | no data | + |
Graphics image quality
Maximum display resolutions supported by Core i9-9900KF and Celeron J4125 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2160@30Hz |
| Max resolution over eDP | no data | 4096x2160@60Hz |
| Max resolution over DisplayPort | no data | 4096x2160@60Hz |
Graphics API support
APIs supported by Core i9-9900KF and Celeron J4125 integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.4 |
Peripherals
Specifications and connection of peripherals supported by Core i9-9900KF and Celeron J4125.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 6 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | - |
| UART | no data | + |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score 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.
Pros & cons summary
| Performance score | 11.50 | 1.86 |
| Recency | 8 January 2019 | 4 November 2019 |
| Physical cores | 8 | 4 |
| Threads | 16 | 4 |
| Power consumption (TDP) | 95 Watt | 10 Watt |
i9-9900KF has a 518.3% higher aggregate performance score, and 100% more physical cores and 300% more threads.
Celeron J4125, on the other hand, has an age advantage of 9 months, and 850% lower power consumption.
The Core i9-9900KF is our recommended choice as it beats the Celeron J4125 in performance tests.
Should you still have questions on choice between Core i9-9900KF and Celeron J4125, ask them in Comments section, and we shall answer.
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