Xeon Platinum 8458P vs Phenom X4 9950 BE (125W)
Primary details
Comparing Phenom X4 9950 BE (125W) and Xeon Platinum 8458P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Agena (2007−2008) | Sapphire Rapids (2023−2024) |
| Release date | October 2008 (15 years ago) | 10 January 2023 (1 year ago) |
Detailed specifications
Phenom X4 9950 BE (125W) and Xeon Platinum 8458P 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) | 44 |
| Threads | 4 | 88 |
| Base clock speed | no data | 2.7 GHz |
| Boost clock speed | 2.6 GHz | 3.8 GHz |
| L1 cache | 128 KB (per core) | 80K (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 2 MB (shared) | 82.5 MB |
| Chip lithography | 65 nm | Intel 7 nm |
| Die size | 285 mm2 | 4x 477 mm2 |
| Maximum case temperature (TCase) | no data | 78 °C |
| Number of transistors | 450 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Phenom X4 9950 BE (125W) and Xeon Platinum 8458P 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 | 2 |
| Socket | AM2+ | FCLGA4677 |
| Power consumption (TDP) | 125 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9950 BE (125W) and Xeon Platinum 8458P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| 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 | + |
| TSX | - | + |
| Status | no data | Launched |
| Deep Learning Boost | - | + |
Security technologies
Phenom X4 9950 BE (125W) and Xeon Platinum 8458P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X4 9950 BE (125W) and Xeon Platinum 8458P 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 (125W) and Xeon Platinum 8458P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-4800, DDR5-4400 |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Phenom X4 9950 BE (125W) and Xeon Platinum 8458P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 80 |
Pros & cons summary
| Physical cores | 4 | 44 |
| Threads | 4 | 88 |
| Power consumption (TDP) | 125 Watt | 350 Watt |
Phenom X4 9950 BE (125W) has 180% lower power consumption.
Xeon Platinum 8458P, on the other hand, has 1000% more physical cores and 2100% more threads.
We couldn't decide between Phenom X4 9950 BE (125W) and Xeon Platinum 8458P. We've got no test results to judge.
Note that Phenom X4 9950 BE (125W) is a desktop processor while Xeon Platinum 8458P is a server/workstation one.
Should you still have questions on choice between Phenom X4 9950 BE (125W) and Xeon Platinum 8458P, ask them in Comments section, and we shall answer.
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