Xeon Platinum 8558P vs Phenom II X4 945 (125W)
Primary details
Comparing Phenom II X4 945 (125W) and Xeon Platinum 8558P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Deneb (2009−2011) | Emerald Rapids (2023) |
| Release date | 23 April 2009 (15 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $6,759 |
Detailed specifications
Phenom II X4 945 (125W) and Xeon Platinum 8558P 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) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | 3 GHz | 2.7 GHz |
| Boost clock speed | 3 GHz | 4 GHz |
| L1 cache | 128 KB (per core) | 80 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 6 MB (shared) | 260 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 258 mm2 | 2x 763 mm2 |
| Maximum case temperature (TCase) | no data | 81 °C |
| Number of transistors | 758 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Phenom II X4 945 (125W) and Xeon Platinum 8558P 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 | AM3 | FCLGA4677 |
| Power consumption (TDP) | 125 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X4 945 (125W) and Xeon Platinum 8558P. 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 | - | + |
| Deep Learning Boost | - | + |
Security technologies
Phenom II X4 945 (125W) and Xeon Platinum 8558P 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 II X4 945 (125W) and Xeon Platinum 8558P 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 II X4 945 (125W) and Xeon Platinum 8558P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 @ 5600 MT/s (1 DPC) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 945 (125W) and Xeon Platinum 8558P.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 80 |
Pros & cons summary
| Recency | 23 April 2009 | 14 December 2023 |
| Physical cores | 4 | 48 |
| Threads | 4 | 96 |
| Power consumption (TDP) | 125 Watt | 350 Watt |
Phenom II X4 945 (125W) has 180% lower power consumption.
Xeon Platinum 8558P, on the other hand, has an age advantage of 14 years, and 1100% more physical cores and 2300% more threads.
We couldn't decide between Phenom II X4 945 (125W) and Xeon Platinum 8558P. We've got no test results to judge.
Note that Phenom II X4 945 (125W) is a desktop processor while Xeon Platinum 8558P is a server/workstation one.
Should you still have questions on choice between Phenom II X4 945 (125W) and Xeon Platinum 8558P, ask them in Comments section, and we shall answer.
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