FX-8120: specs and benchmarks
Aggregate performance score
FX-8120 provides poor benchmark performance at 4.15% of a leader's which is a 96-core EPYC 9655P.
Summary
AMD started FX-8120 sales 12 October 2011. This is a Zambezi architecture desktop processor primarily aimed at office systems. It has 8 cores and 8 threads, and is based on 32nm manufacturing technology, with a max turbo frequency of 4000 MHz and an unlocked multiplier.
Compatibility-wise, this is AM3+ processor with a TDP of 125 Watt. It supports DDR3 memory.
Primary details
FX-8120 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 1395 | |
| Place by popularity | not in top-100 | |
| Market segment | Desktop processor | |
| Power efficiency | 3.14 | of 100.00 (Ryzen Z1 Extreme) |
| Architecture codename | Zambezi (2011−2012) | |
| Release date | 12 October 2011 (13 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 8 (Octa-Core) | |
| Threads | 8 | |
| Base clock speed | 3.1 GHz | of 4.7 GHz (FX-9590) |
| Boost clock speed | 4 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 384 KB | of 80 KB (EPYC 9965) |
| L2 cache | 8192 KB | of 2 MB (Xeon 6980P) |
| L3 cache | 8192 KB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 32 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 315 mm2 | |
| Maximum core temperature | 61 °C | of 110 °C (Atom x7-E3950) |
| Number of transistors | 1,200 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| Unlocked multiplier | + | |
| P0 Vcore voltage | Min: 1.0125 V - Max: 1.4125 V |
Compatibility
Information on FX-8120 compatibility with other computer components and devices: 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 | of 8 (Opteron 842) |
| Socket | AM3+ | |
| Power consumption (TDP) | 125 Watt | of 500 Watt (Xeon 6960P) |
Technologies and extensions
Technological capabilities and additional instructions supported by FX-8120. You'll probably need this information if you require some particular technology.
| AES-NI | + | |
| FMA | + | |
| AVX | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| AMD-V | + |
Memory specs
Types, maximum amount and channel number of RAM supported by FX-8120's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR3 |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | n/a | of 5.0 (Core i9-12900K) |
Benchmark performance
Single-core and multi-core benchmark results of FX-8120. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
3DMark Fire Strike Physics
Send your test results of FX-8120.
Intel equivalent
According to our data, the closest Intel alternative to FX-8120 is Core i7-990X EE, which is nearly equal in speed and higher by 4 positions in our ranking.
Here are some closest Intel rivals to FX-8120:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for FX-8120, according to our PC configuration statistics.
These are the fastest graphics cards for FX-8120 in our user configuration statistics. There is a total of 4682 configurations using FX-8120 in our database.
