Ryzen 3 8440U vs EPYC 7643P
Primary details
Comparing EPYC 7643P and Ryzen 3 8440U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Architecture codename | Milan (2021) | Hawk Point-U (Zen 4 + Zen 4c) |
| Release date | no data | 6 December 2023 (less than a year ago) |
Detailed specifications
EPYC 7643P and Ryzen 3 8440U 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 | 48 (Octatetraconta-Core) | 4 (Quad-Core) |
| Threads | 96 | 81 x 4.7 GHz AMD Zen 43 x 4.7 GHz AMD Zen 4c |
| Base clock speed | 2.3 GHz | 3 GHz |
| Boost clock speed | 3.6 GHz | 4.7 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 256 MB (shared) | 8 MB (shared) |
| Chip lithography | 7 nm | 4 nm |
| Die size | 8x 81 mm2 | 137 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 33,200 million | 20,900 million |
| 64 bit support | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on EPYC 7643P and Ryzen 3 8440U 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 | SP3 | FP7 |
| Power consumption (TDP) | 225 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7643P and Ryzen 3 8440U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | DDR5-5600/LPDDR5x-7500 RAM, PCIe 4, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3 |
| AES-NI | + | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7643P and Ryzen 3 8440U are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7643P and Ryzen 3 8440U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 740M |
Peripherals
Specifications and connection of peripherals supported by EPYC 7643P and Ryzen 3 8440U.
| PCIe version | 4.0 | 4.0 |
| PCI Express lanes | no data | 14 |
Pros & cons summary
| Physical cores | 48 | 4 |
| Threads | 96 | 81 x 4.7 GHz AMD Zen 43 x 4.7 GHz AMD Zen 4c |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 225 Watt | 28 Watt |
We couldn't decide between EPYC 7643P and Ryzen 3 8440U. We've got no test results to judge.
Be aware that EPYC 7643P is a server/workstation processor while Ryzen 3 8440U is a notebook one.
Should you still have questions on choice between EPYC 7643P and Ryzen 3 8440U, ask them in Comments section, and we shall answer.
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