EPYC 8434PN vs FX-8120
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1676 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 1.27 | no data |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Zambezi (2011−2012) | Siena (2023−2024) |
| Release date | 12 October 2011 (14 years ago) | 18 September 2023 (2 years ago) |
| Launch price (MSRP) | no data | $3,150 |
Detailed specifications
Basic parameters of FX-8120 and EPYC 8434PN: 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) | 48 (Octatetraconta-Core) |
| Threads | 8 | 96 |
| Base clock speed | 3.1 GHz | 2 GHz |
| Boost clock speed | 4 GHz | 3 GHz |
| L1 cache | 384 KB | 64 KB (per core) |
| L2 cache | 8192 KB | 1 MB (per core) |
| L3 cache | 8192 KB | 128 MB (shared) |
| Chip lithography | 32 nm | 5 nm |
| Die size | 315 mm2 | 4x 73 mm2 |
| Maximum core temperature | 61 °C | no data |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 1,200 million | 35,500 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
| P0 Vcore voltage | Min: 1.0125 V - Max: 1.4125 V | no data |
Compatibility
Information on FX-8120 and EPYC 8434PN 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 | AM3+ | SP6 |
| Power consumption (TDP) | 125 Watt | 155 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-8120 and EPYC 8434PN. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-8120 and EPYC 8434PN are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-8120 and EPYC 8434PN. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by FX-8120 and EPYC 8434PN.
| PCIe version | n/a | 5.0 |
| PCI Express lanes | no data | 96 |
Pros & cons summary
| Recency | 12 October 2011 | 18 September 2023 |
| Physical cores | 8 | 48 |
| Threads | 8 | 96 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 125 Watt | 155 Watt |
FX-8120 has 24% lower power consumption.
EPYC 8434PN, on the other hand, has an age advantage of 11 years, 500% more physical cores and 1100% more threads, and a 540% more advanced lithography process.
We couldn't decide between AMD FX-8120 and AMD EPYC 8434PN. We've got no test results to judge.
Note that FX-8120 is a desktop processor while EPYC 8434PN is a server/workstation one.
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