i9-9900KF vs Phenom X4 9950 BE (140W)
Primary details
Comparing Phenom X4 9950 BE (140W) and Core i9-9900KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 675 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 8.20 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i9 |
| Power efficiency | no data | 11.46 |
| Architecture codename | Agena (2007−2008) | Coffee Lake-R (2018−2019) |
| Release date | March 2008 (16 years ago) | 8 January 2019 (5 years ago) |
| Launch price (MSRP) | no data | $488 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom X4 9950 BE (140W) and Core i9-9900KF 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 | 4 (Quad-Core) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | no data | 3.6 GHz |
| Boost clock speed | 2.6 GHz | 5 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | no data | 4 × 8 GT/s |
| L1 cache | 128 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 256K (per core) |
| L3 cache | 2 MB (shared) | 16 MB (shared) |
| Chip lithography | 65 nm | 14 nm |
| Die size | 285 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 450 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Phenom X4 9950 BE (140W) and Core i9-9900KF 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 (Uniprocessor) |
| Socket | AM2+ | FCLGA1151 |
| Power consumption (TDP) | 140 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9950 BE (140W) and Core i9-9900KF. 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) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
Security technologies
Phenom X4 9950 BE (140W) and Core i9-9900KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X4 9950 BE (140W) and Core i9-9900KF are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X4 9950 BE (140W) and Core i9-9900KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-2666 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 42.671 GB/s |
Peripherals
Specifications and connection of peripherals supported by Phenom X4 9950 BE (140W) and Core i9-9900KF.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Chip lithography | 65 nm | 14 nm |
| Power consumption (TDP) | 140 Watt | 95 Watt |
i9-9900KF has 100% more physical cores and 300% more threads, a 364.3% more advanced lithography process, and 47.4% lower power consumption.
We couldn't decide between Phenom X4 9950 BE (140W) and Core i9-9900KF. We've got no test results to judge.
Should you still have questions on choice between Phenom X4 9950 BE (140W) and Core i9-9900KF, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
