EPYC 7643 vs i3-8120
Primary details
Comparing Core i3-8120 and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 39 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 6.37 |
| Market segment | Desktop processor | Server |
| Series | Intel Core i3 | AMD EPYC |
| Power efficiency | no data | 20.14 |
| Architecture codename | Coffee Lake (2017−2019) | Milan (2021−2023) |
| Release date | 1 September 2018 (6 years ago) | 15 March 2021 (3 years ago) |
| Launch price (MSRP) | no data | $4,995 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i3-8120 and EPYC 7643 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) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | 3.7 GHz | 2.3 GHz |
| Boost clock speed | 3.7 GHz | 3.6 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | no data | 23 |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 512 KB (per core) |
| L3 cache | 6 MB (shared) | 256 MB (shared) |
| Chip lithography | 14 nm | 7 nm+ |
| Die size | 126 mm2 | 8x 81 mm2 |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 33,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Core i3-8120 and EPYC 7643 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 (Uniprocessor) | 2 |
| Socket | 1151 | SP3 |
| Power consumption (TDP) | 65 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i3-8120 and EPYC 7643. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i3-8120 and EPYC 7643 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 Core i3-8120 and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Dual-channel | DDR4-3200 |
| Maximum memory size | 64 GB | 4 TiB |
| Maximum memory bandwidth | 38.397 GB/s | 204.795 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 630 | N/A |
Peripherals
Specifications and connection of peripherals supported by Core i3-8120 and EPYC 7643.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 1 September 2018 | 15 March 2021 |
| Physical cores | 4 | 48 |
| Threads | 4 | 96 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 225 Watt |
i3-8120 has 246.2% lower power consumption.
EPYC 7643, on the other hand, has an age advantage of 2 years, 1100% more physical cores and 2300% more threads, and a 100% more advanced lithography process.
We couldn't decide between Core i3-8120 and EPYC 7643. We've got no test results to judge.
Note that Core i3-8120 is a desktop processor while EPYC 7643 is a server/workstation one.
Should you still have questions on choice between Core i3-8120 and EPYC 7643, ask them in Comments section, and we shall answer.
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