EPYC 7402 vs A4-5145M
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 240 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 8.58 |
| Market segment | Laptop | Server |
| Series | AMD A-Series | AMD EPYC |
| Power efficiency | no data | 6.16 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Richland (2013−2014) | Zen 2 (2019−2020) |
| Release date | 1 June 2013 (12 years ago) | 7 August 2019 (6 years ago) |
| Launch price (MSRP) | no data | $1,783 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
A4-5145M and EPYC 7402 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 | 2 (Dual-core) | 24 (Tetracosa-Core) |
| Threads | 2 | 48 |
| Base clock speed | 2 GHz | 2.8 GHz |
| Boost clock speed | 2.6 GHz | 3.35 GHz |
| Multiplier | no data | 28 |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 512 KB (per core) |
| L3 cache | 0 KB | 32 MB (per die) |
| Chip lithography | 32 nm | 7 nm, 14 nm |
| Die size | 246 mm2 | 4x 74 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 1,178 million | 15,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on A4-5145M and EPYC 7402 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 | 2 (Multiprocessor) |
| Socket | FP2 | SP3 |
| Power consumption (TDP) | 17 Watt | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A4-5145M and EPYC 7402. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A4-5145M and EPYC 7402 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A4-5145M and EPYC 7402. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Eight-channel |
| Maximum memory size | no data | 4 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 204.763 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon HD 8310G (424 - 554 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by A4-5145M and EPYC 7402.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 1 June 2013 | 7 August 2019 |
| Physical cores | 2 | 24 |
| Threads | 2 | 48 |
| Chip lithography | 32 nm | 7 nm |
| Power consumption (TDP) | 17 Watt | 180 Watt |
A4-5145M has 959% lower power consumption.
EPYC 7402, on the other hand, has an age advantage of 6 years, 1100% more physical cores and 2300% more threads, and a 357% more advanced lithography process.
We couldn't decide between AMD A4-5145M and AMD EPYC 7402. We've got no test results to judge.
Be aware that A4-5145M is a notebook processor while EPYC 7402 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
