i3-2120 vs FX-770K
Aggregate performance score
FX-770K outperforms Core i3-2120 by an impressive 56% based on our aggregate benchmark results.
Primary details
Comparing FX-770K and Core i3-2120 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1948 | 2302 |
| Place by popularity | not in top-100 | 97 |
| Cost-effectiveness evaluation | no data | 0.14 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 2.81 | 1.80 |
| Architecture codename | Kaveri (2014−2015) | Sandy Bridge (2011−2013) |
| Release date | December 2014 (9 years ago) | 20 February 2011 (13 years ago) |
| Launch price (MSRP) | no data | $95 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
FX-770K and Core i3-2120 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) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 3.5 GHz | 3.3 GHz |
| Boost clock speed | 3.9 GHz | 3.3 GHz |
| Bus rate | no data | 5 GT/s |
| L1 cache | 256K | 64 KB (per core) |
| L2 cache | 4 MB | 256 KB (per core) |
| L3 cache | no data | 3 MB (shared) |
| Chip lithography | 28 nm | 32 nm |
| Die size | 245 mm2 | 131 mm2 |
| Maximum core temperature | no data | 69 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 2,411 million | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | - |
Compatibility
Information on FX-770K and Core i3-2120 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 | FM2+ | FCLGA1155 |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-770K and Core i3-2120. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
FX-770K and Core i3-2120 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Identity Protection | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-770K and Core i3-2120 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 FX-770K and Core i3-2120. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-2133 | DDR3 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics 2000 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.1 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of FX-770K and Core i3-2120 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by FX-770K and Core i3-2120.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score 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.
Pros & cons summary
| Performance score | 2.00 | 1.28 |
| Physical cores | 4 | 2 |
| Chip lithography | 28 nm | 32 nm |
FX-770K has a 56.3% higher aggregate performance score, 100% more physical cores, and a 14.3% more advanced lithography process.
The FX-770K is our recommended choice as it beats the Core i3-2120 in performance tests.
Should you still have questions on choice between FX-770K and Core i3-2120, ask them in Comments section, and we shall answer.
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