EPYC 9555P vs Ryzen 9 4900HS
Primary details
Comparing Ryzen 9 4900HS and EPYC 9555P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 655 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | AMD Renoir (Ryzen 4000 APU) | no data |
| Power efficiency | 32.09 | no data |
| Architecture codename | Renoir (Zen 2) (2020) | Turin (2024) |
| Release date | 7 March 2020 (4 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $7,983 |
Detailed specifications
Ryzen 9 4900HS and EPYC 9555P 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) | 64 (Tetrahexaconta-Core) |
| Threads | 16 | 128 |
| Base clock speed | 3 GHz | 3.2 GHz |
| Boost clock speed | 4.3 GHz | 4.4 GHz |
| Multiplier | 30 | no data |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 8 MB (shared) | 256 MB (shared) |
| Chip lithography | 7 nm | 4 nm |
| Die size | 156 mm2 | 8x 70.6 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 9,800 million | 66,520 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Ryzen 9 4900HS and EPYC 9555P 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 |
| Socket | FP6 | SP5 |
| Power consumption (TDP) | 35 Watt | 360 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 4900HS and EPYC 9555P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 4900HS and EPYC 9555P are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 4900HS and EPYC 9555P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-4266 | DDR5 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 68.27 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 1750 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 4900HS and EPYC 9555P.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 7 March 2020 | 10 October 2024 |
| Physical cores | 8 | 64 |
| Threads | 16 | 128 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 35 Watt | 360 Watt |
Ryzen 9 4900HS has 928.6% lower power consumption.
EPYC 9555P, on the other hand, has an age advantage of 4 years, 700% more physical cores and 700% more threads, and a 75% more advanced lithography process.
We couldn't decide between Ryzen 9 4900HS and EPYC 9555P. We've got no test results to judge.
Be aware that Ryzen 9 4900HS is a notebook processor while EPYC 9555P is a server/workstation one.
Should you still have questions on choice between Ryzen 9 4900HS and EPYC 9555P, ask them in Comments section, and we shall answer.
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