Ryzen 9 7900X vs EPYC Embedded 3451
Primary details
Comparing EPYC Embedded 3451 and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 123 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Series | AMD EPYC Embedded | no data |
| Power efficiency | no data | 18.11 |
| Architecture codename | Zen (2017−2020) | Raphael (Zen4) (2022−2023) |
| Release date | 21 February 2018 (6 years ago) | 27 September 2022 (2 years ago) |
| Launch price (MSRP) | $880 | no data |
Detailed specifications
EPYC Embedded 3451 and Ryzen 9 7900X 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 | 16 (Hexadeca-Core) | 12 (Dodeca-Core) |
| Threads | 32 | 24 |
| Base clock speed | 2.15 GHz | 4.7 GHz |
| Boost clock speed | 3 GHz | 5.6 GHz |
| Multiplier | 21.5 | no data |
| L1 cache | 96K (per core) | 64K (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 32 MB (shared) | 64 MB (shared) |
| Chip lithography | 14 nm | 5 nm |
| Die size | 2x 213 mm2 | 2x 70 (CCD) mm2 + 122 (I/O) mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | no data | 47 °C |
| Number of transistors | 4,800 million | CCD: 6,5 Mrd + IOD: 3,4 Mrd Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on EPYC Embedded 3451 and Ryzen 9 7900X 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 (Uniprocessor) | 1 |
| Socket | AMD BGA SP4r2 | AM5 |
| Power consumption (TDP) | 100 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3451 and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3451 and Ryzen 9 7900X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3451 and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR5-5200 |
| Maximum memory size | 1 TiB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3451 and Ryzen 9 7900X.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 64 | 24 |
Pros & cons summary
| Recency | 21 February 2018 | 27 September 2022 |
| Physical cores | 16 | 12 |
| Threads | 32 | 24 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 100 Watt | 170 Watt |
EPYC Embedded 3451 has 33.3% more physical cores and 33.3% more threads, and 70% lower power consumption.
Ryzen 9 7900X, on the other hand, has an age advantage of 4 years, and a 180% more advanced lithography process.
We couldn't decide between EPYC Embedded 3451 and Ryzen 9 7900X. We've got no test results to judge.
Be aware that EPYC Embedded 3451 is a server/workstation processor while Ryzen 9 7900X is a desktop one.
Should you still have questions on choice between EPYC Embedded 3451 and Ryzen 9 7900X, ask them in Comments section, and we shall answer.
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