EPYC Embedded 9454 vs Ryzen 9 7940HS
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 432 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Power efficiency | 52.04 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Phoenix-HS (Zen 4) (2023) | Genoa (2022−2023) |
| Release date | January 2023 (2 years ago) | 14 March 2023 (2 years ago) |
Detailed specifications
Ryzen 9 7940HS and EPYC Embedded 9454 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) | 48 (Octatetraconta-Core) |
| Threads | 16 | 96 |
| Base clock speed | 4 GHz | 2.75 GHz |
| Boost clock speed | 5.2 GHz | 3.8 GHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 16 MB (shared) | 256 MB (shared) |
| Chip lithography | 4 nm | 5 nm |
| Die size | 178 mm2 | 8x 72 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 25,000 million | 52,560 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Ryzen 9 7940HS and EPYC Embedded 9454 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 |
| Socket | FP8 | SP5 |
| Power consumption (TDP) | 35 Watt | 290 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7940HS and EPYC Embedded 9454. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7940HS and EPYC Embedded 9454 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HS and EPYC Embedded 9454. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5-4800 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M ( - 2800 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7940HS and EPYC Embedded 9454.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 20 | 128 |
Pros & cons summary
| Physical cores | 8 | 48 |
| Threads | 16 | 96 |
| Chip lithography | 4 nm | 5 nm |
| Power consumption (TDP) | 35 Watt | 290 Watt |
Ryzen 9 7940HS has a 25% more advanced lithography process, and 728.6% lower power consumption.
EPYC Embedded 9454, on the other hand, has 500% more physical cores and 500% more threads.
We couldn't decide between AMD Ryzen 9 7940HS and AMD EPYC Embedded 9454. We've got no test results to judge.
Be aware that Ryzen 9 7940HS is a notebook processor while EPYC Embedded 9454 is a server/workstation one.
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