Phenom II X4 945 (125W) vs EPYC 8434P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 98 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 14.43 | no data |
| Market segment | Server | Desktop processor |
| Power efficiency | 20.22 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Siena (2023−2024) | Deneb (2009−2011) |
| Release date | 18 September 2023 (2 years ago) | 23 April 2009 (16 years ago) |
| Launch price (MSRP) | $2,700 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 8434P and Phenom II X4 945 (125W) 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 | 48 (Octatetraconta-Core) | 4 (Quad-Core) |
| Threads | 96 | 4 |
| Base clock speed | 2.5 GHz | 3 GHz |
| Boost clock speed | 3.1 GHz | 3 GHz |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 128 MB (shared) | 6 MB (shared) |
| Chip lithography | 5 nm | 45 nm |
| Die size | 4x 73 mm2 | 258 mm2 |
| Maximum case temperature (TCase) | 75 °C | no data |
| Number of transistors | 35,500 million | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on EPYC 8434P and Phenom II X4 945 (125W) 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 | SP6 | AM3 |
| Power consumption (TDP) | 200 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 8434P and Phenom II X4 945 (125W). You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 8434P and Phenom II X4 945 (125W) are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 8434P and Phenom II X4 945 (125W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by EPYC 8434P and Phenom II X4 945 (125W).
| PCIe version | 5.0 | 2.0 |
| PCI Express lanes | 96 | no data |
Pros & cons summary
| Recency | 18 September 2023 | 23 April 2009 |
| Physical cores | 48 | 4 |
| Threads | 96 | 4 |
| Chip lithography | 5 nm | 45 nm |
| Power consumption (TDP) | 200 Watt | 125 Watt |
EPYC 8434P has an age advantage of 14 years, 1100% more physical cores and 2300% more threads, and a 800% more advanced lithography process.
Phenom II X4 945 (125W), on the other hand, has 60% lower power consumption.
We couldn't decide between AMD EPYC 8434P and AMD Phenom II X4 945 (125W). We've got no test results to judge.
Be aware that EPYC 8434P is a server/workstation processor while Phenom II X4 945 (125W) is a desktop one.
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