Atom x7433FE vs EPYC 7643
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 71 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 7.23 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | no data |
| Power efficiency | 20.54 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Milan (2021−2023) | Amston Lake (2024−2025) |
| Release date | 15 March 2021 (4 years ago) | 1 October 2025 (less than a year ago) |
| Launch price (MSRP) | $4,995 | $75 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 7643 and Atom x7433FE 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 | 4 |
| Base clock speed | 2.3 GHz | 1.5 GHz |
| Boost clock speed | 3.6 GHz | 3.4 GHz |
| Multiplier | 23 | no data |
| L1 cache | 64 KB (per core) | 96 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (shared) |
| L3 cache | 256 MB (shared) | 6 MB (shared) |
| Chip lithography | 7 nm+ | 10 nm |
| Die size | 8x 81 mm2 | no data |
| Number of transistors | 33,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on EPYC 7643 and Atom x7433FE 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 | 2 | 1 |
| Socket | SP3 | Intel BGA 1264 |
| Power consumption (TDP) | 225 Watt | 9 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7643 and Atom x7433FE. 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 EPYC 7643 and Atom x7433FE 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 EPYC 7643 and Atom x7433FE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4, DDR5, LPDDR5 |
| Maximum memory size | 4 TiB | no data |
| Maximum memory bandwidth | 204.795 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel UHD Graphics 32EU |
Peripherals
Specifications and connection of peripherals supported by EPYC 7643 and Atom x7433FE.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 128 | 9 |
Pros & cons summary
| Recency | 15 March 2021 | 1 October 2025 |
| Physical cores | 48 | 4 |
| Threads | 96 | 4 |
| Chip lithography | 7 nm | 10 nm |
| Power consumption (TDP) | 225 Watt | 9 Watt |
EPYC 7643 has 1100% more physical cores and 2300% more threads, and a 42.9% more advanced lithography process.
Atom x7433FE, on the other hand, has an age advantage of 4 years, and 2400% lower power consumption.
We couldn't decide between AMD EPYC 7643 and Intel Atom x7433FE. We've got no test results to judge.
Be aware that EPYC 7643 is a server/workstation processor while Atom x7433FE is a notebook one.
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