Ryzen 9 4900H vs EPYC Embedded 3451
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 829 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | AMD EPYC Embedded | AMD Renoir (Ryzen 4000 APU) |
| Power efficiency | no data | 21.27 |
| Designer | AMD | AMD |
| Manufacturer | GlobalFoundries | TSMC |
| Architecture codename | Zen (2017−2020) | Renoir-H (Zen 2) (2020) |
| Release date | 21 February 2018 (7 years ago) | 16 March 2020 (5 years ago) |
| Launch price (MSRP) | $880 | no data |
Detailed specifications
EPYC Embedded 3451 and Ryzen 9 4900H 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) | 8 (Octa-Core) |
| Threads | 32 | 16 |
| Base clock speed | 2.15 GHz | 3.3 GHz |
| Boost clock speed | 2.15 GHz | 4.4 GHz |
| Multiplier | 21.5 | 33 |
| L1 cache | 1536 KB | 512 KB |
| L2 cache | 8 MB | 4 MB |
| L3 cache | 32 MB (shared) | 8 MB (shared) |
| Chip lithography | 14 nm | 7 nm |
| Die size | 213 mm2 | 156 mm2 |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | 9600 Million | 9800 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on EPYC Embedded 3451 and Ryzen 9 4900H 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 | FP6 |
| Power consumption (TDP) | 100 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3451 and Ryzen 9 4900H. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA, SHA |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3451 and Ryzen 9 4900H are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3451 and Ryzen 9 4900H. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4 |
| Maximum memory size | 1 TiB | 64 GB |
| Max memory channels | 4 | 4 |
| Maximum memory bandwidth | 85.33 GB/s | 68.27 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 1750 MHz) |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3451 and Ryzen 9 4900H.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 64 | no data |
Pros & cons summary
| Recency | 21 February 2018 | 16 March 2020 |
| Physical cores | 16 | 8 |
| Threads | 32 | 16 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 100 Watt | 45 Watt |
EPYC Embedded 3451 has 100% more physical cores and 100% more threads.
Ryzen 9 4900H, on the other hand, has an age advantage of 2 years, a 100% more advanced lithography process, and 122.2% lower power consumption.
We couldn't decide between AMD EPYC Embedded 3451 and AMD Ryzen 9 4900H. We've got no test results to judge.
Be aware that EPYC Embedded 3451 is a server/workstation processor while Ryzen 9 4900H is a notebook one.
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