i7-3910K vs FX-8120
Primary details
Comparing FX-8120 and Core i7-3910K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1382 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 3.14 | no data |
| Architecture codename | Zambezi (2011−2012) | Sandy Bridge-E (2011−2013) |
| Release date | 12 October 2011 (13 years ago) | 24 July 2013 (11 years ago) |
Detailed specifications
FX-8120 and Core i7-3910K 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 | 8 (Octa-Core) | 6 (Hexa-Core) |
| Threads | 8 | 12 |
| Base clock speed | 3.1 GHz | 3 GHz |
| Boost clock speed | 4 GHz | 3.6 GHz |
| L1 cache | 384 KB | 64 KB (per core) |
| L2 cache | 8192 KB | 256 KB (per core) |
| L3 cache | 8192 KB | 12 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 315 mm2 | 435 mm2 |
| Maximum core temperature | 61 °C | no data |
| Maximum case temperature (TCase) | no data | 67 °C |
| Number of transistors | 1,200 million | 2,270 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | + |
| P0 Vcore voltage | Min: 1.0125 V - Max: 1.4125 V | no data |
Compatibility
Information on FX-8120 and Core i7-3910K 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+ | 2011 |
| Power consumption (TDP) | 125 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-8120 and Core i7-3910K. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-8120 and Core i7-3910K are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-8120 and Core i7-3910K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Peripherals
Specifications and connection of peripherals supported by FX-8120 and Core i7-3910K.
| PCIe version | n/a | 3.0 |
Pros & cons summary
| Recency | 12 October 2011 | 24 July 2013 |
| Physical cores | 8 | 6 |
| Threads | 8 | 12 |
| Power consumption (TDP) | 125 Watt | 130 Watt |
FX-8120 has 33.3% more physical cores, and 4% lower power consumption.
i7-3910K, on the other hand, has an age advantage of 1 year, and 50% more threads.
We couldn't decide between FX-8120 and Core i7-3910K. We've got no test results to judge.
Should you still have questions on choice between FX-8120 and Core i7-3910K, ask them in Comments section, and we shall answer.
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