EPYC 9996 vs EPYC Embedded 9255
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Turin (2024−2025) | Venice (2004−2026) |
| Release date | 11 March 2025 (1 year ago) | 23 July 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $14,904 |
Detailed specifications
Basic parameters of EPYC Embedded 9255 and EPYC 9996: 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 | 24 (Tetracosa-Core) | 256 |
| Threads | 48 | 512 |
| Base clock speed | 3.25 GHz | 2.55 GHz |
| Boost clock speed | 4.8 GHz | 4.1 GHz |
| L1 cache | 80 KB (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 128 MB (shared) | 1 GB (shared) |
| Chip lithography | 4 nm | 2 nm |
| Die size | 4x 70.6 mm2 | 8x 165 mm2 |
| Number of transistors | 33,260 million | 203.0 billion |
| 64 bit support | + | + |
Compatibility
Information on EPYC Embedded 9255 and EPYC 9996 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 | SP7 |
| Power consumption (TDP) | 200 Watt | 600 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 9255 and EPYC 9996. 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 Embedded 9255 and EPYC 9996 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 9255 and EPYC 9996. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 9255 and EPYC 9996.
| PCIe version | 5.0 | 6.0 |
| PCI Express lanes | 128 | 96 |
Pros & cons summary
| Recency | 11 March 2025 | 23 July 2026 |
| Physical cores | 24 | 256 |
| Threads | 48 | 512 |
| Chip lithography | 4 nm | 2 nm |
| Power consumption (TDP) | 200 Watt | 600 Watt |
EPYC Embedded 9255 has 67% lower power consumption.
EPYC 9996, on the other hand, has an age advantage of 1 year, 967% more physical cores and 967% more threads, and a 50% more advanced lithography process.
We couldn't decide between AMD EPYC Embedded 9255 and AMD EPYC 9996. We've got no test results to judge.
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