EPYC 9555 vs EPYC 9654
Aggregate performance score
EPYC 9555 outperforms EPYC 9654 by a moderate 11% based on our aggregate benchmark results.
Primary details
Comparing EPYC 9654 and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 8 | 6 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.37 | 3.06 |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 19.80 | 21.95 |
| Architecture codename | Genoa (2022−2023) | Turin (2024) |
| Release date | 10 November 2022 (2 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | $11,805 | $9,826 |
Cost-effectiveness evaluation
Performance per price, higher is better.
EPYC 9555 has 123% better value for money than EPYC 9654.
Detailed specifications
EPYC 9654 and EPYC 9555 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 | 96 | 64 (Tetrahexaconta-Core) |
| Threads | 192 | 128 |
| Base clock speed | 2.4 GHz | 3.2 GHz |
| Boost clock speed | 3.7 GHz | 4.4 GHz |
| Multiplier | 24 | no data |
| L1 cache | 64K (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 384 MB (shared) | 256 MB (shared) |
| Chip lithography | 5 nm, 6 nm | 4 nm |
| Die size | 12x 72 mm2 | 8x 70.6 mm2 |
| Number of transistors | 78,840 million | 66,520 million |
| 64 bit support | + | + |
Compatibility
Information on EPYC 9654 and EPYC 9555 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 | 2 |
| Socket | SP5 | SP5 |
| Power consumption (TDP) | 360 Watt | 360 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9654 and EPYC 9555. 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 9654 and EPYC 9555 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9654 and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800 | DDR5 |
| 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 | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC 9654 and EPYC 9555.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 128 | 128 |
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.
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.
Pros & cons summary
| Performance score | 75.05 | 83.17 |
| Recency | 10 November 2022 | 10 October 2024 |
| Physical cores | 96 | 64 |
| Threads | 192 | 128 |
| Chip lithography | 5 nm | 4 nm |
EPYC 9654 has 50% more physical cores and 50% more threads.
EPYC 9555, on the other hand, has a 10.8% higher aggregate performance score, an age advantage of 1 year, and a 25% more advanced lithography process.
The EPYC 9555 is our recommended choice as it beats the EPYC 9654 in performance tests.
Other comparisons
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