EPYC Embedded 3151 vs Ryzen 9 7940H
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 454 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | no data | AMD EPYC Embedded |
| Power efficiency | 50.67 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | GlobalFoundries |
| Architecture codename | Phoenix (2023−2024) | Zen (2017−2020) |
| Release date | January 2023 (2 years ago) | 21 February 2018 (7 years ago) |
Detailed specifications
Ryzen 9 7940H and EPYC Embedded 3151 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) | 4 (Quad-Core) |
| Threads | 16 | 8 |
| Base clock speed | 4 GHz | 2.7 GHz |
| Boost clock speed | 5.2 GHz | 2.7 GHz |
| Multiplier | no data | 27 |
| L1 cache | 64K (per core) | 384 KB |
| L2 cache | 1 MB (per core) | 2 MB |
| L3 cache | 16 MB (shared) | 16 MB (shared) |
| Chip lithography | 4 nm | 14 nm |
| Die size | 178 mm2 | 213 mm2 |
| Number of transistors | 25,000 million | 4800 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen 9 7940H and EPYC Embedded 3151 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 (Uniprocessor) |
| Socket | FP8 | AMD BGA SP4r2 |
| Power consumption (TDP) | 35 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7940H and EPYC Embedded 3151. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7940H and EPYC Embedded 3151 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940H and EPYC Embedded 3151. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5600 | DDR4-2666 |
| Maximum memory size | no data | 512 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 42.671 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7940H and EPYC Embedded 3151.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 20 | 32 |
Pros & cons summary
| Physical cores | 8 | 4 |
| Threads | 16 | 8 |
| Chip lithography | 4 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 45 Watt |
Ryzen 9 7940H has 100% more physical cores and 100% more threads, a 250% more advanced lithography process, and 28.6% lower power consumption.
We couldn't decide between AMD Ryzen 9 7940H and AMD EPYC Embedded 3151. We've got no test results to judge.
Be aware that Ryzen 9 7940H is a notebook processor while EPYC Embedded 3151 is a server/workstation one.
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