Ryzen 9 7945HX3D vs EPYC 9554
Aggregate performance score
EPYC 9554 outperforms Ryzen 9 7945HX3D by an impressive 93% based on our aggregate benchmark results.
Primary details
Comparing EPYC 9554 and Ryzen 9 7945HX3D processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 8 | 97 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.99 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Power efficiency | 18.50 | 62.70 |
| Architecture codename | Genoa (2022−2023) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | 10 November 2022 (2 years ago) | 27 July 2023 (1 year ago) |
| Launch price (MSRP) | $9,087 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 9554 and Ryzen 9 7945HX3D 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 | 64 (Tetrahexaconta-Core) | 16 (Hexadeca-Core) |
| Threads | 128 | 32 |
| Base clock speed | 3.1 GHz | 2.3 GHz |
| Boost clock speed | 3.75 GHz | 5.4 GHz |
| Multiplier | 31 | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 256 MB (shared) | 128 MB (shared) |
| Chip lithography | 5 nm, 6 nm | 5 nm |
| Die size | 8x 72 mm2 | 2x 71 mm2 |
| Maximum core temperature | no data | 89 °C |
| Number of transistors | 52,560 million | 17,840 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on EPYC 9554 and Ryzen 9 7945HX3D 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 | 2 | 1 |
| Socket | SP5 | FL1 |
| Power consumption (TDP) | 360 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9554 and Ryzen 9 7945HX3D. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9554 and Ryzen 9 7945HX3D are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9554 and Ryzen 9 7945HX3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800 | DDR5-5200 |
| Maximum memory size | 6 TiB | no data |
| Maximum memory bandwidth | 460.8 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by EPYC 9554 and Ryzen 9 7945HX3D.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 128 | 28 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 70.38 | 36.44 |
| Recency | 10 November 2022 | 27 July 2023 |
| Physical cores | 64 | 16 |
| Threads | 128 | 32 |
| Power consumption (TDP) | 360 Watt | 55 Watt |
EPYC 9554 has a 93.1% higher aggregate performance score, and 300% more physical cores and 300% more threads.
Ryzen 9 7945HX3D, on the other hand, has an age advantage of 8 months, and 554.5% lower power consumption.
The EPYC 9554 is our recommended choice as it beats the Ryzen 9 7945HX3D in performance tests.
Be aware that EPYC 9554 is a server/workstation processor while Ryzen 9 7945HX3D is a notebook one.
Should you still have questions on choice between EPYC 9554 and Ryzen 9 7945HX3D, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
