AMD EPYC 9355: specs and benchmarks
Summary
AMD started EPYC 9355 sales 10 October 2024 at a recommended price of $3,694. This is a Turin architecture desktop processor primarily aimed at professional systems. It has 32 cores and 64 threads, and is based on 4 nm manufacturing technology, with a maximum frequency of 4400 MHz and a locked multiplier.
Compatibility-wise, this is AMD Socket SP5 processor with a TDP of 280 Watt. It supports DDR5 memory.
Primary details
EPYC 9355 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Market segment | Server | |
| Architecture codename | Turin (2024) | |
| Release date | 10 October 2024 (recently) | |
| Launch price (MSRP) | $3,694 | of 17,906 (tray) (Xeon Platinum 8280L) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 32 (Dotriaconta-Core) | |
| Threads | 64 | |
| Base clock speed | 3.55 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 4.4 GHz | of 50 MHz (i486DX-50) |
| L1 cache | 80 KB (per core) | of 80 KB (EPYC 9965) |
| L2 cache | 1 MB (per core) | of 2 MB (Xeon 6980P) |
| L3 cache | 256 MB (shared) | of 1152 MB (EPYC 9684X) |
| Chip lithography | 4 nm | of 3 nm (Core Ultra 9 285K) |
| Die size | 8x 70.6 mm2 | |
| Number of transistors | 66,520 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + |
Compatibility
Information on EPYC 9355 compatibility with other computer components and devices: 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 | of 8 (Xeon Platinum 8454H) |
| Socket | SP5 | |
| Power consumption (TDP) | 280 Watt | of 3400 ‑ 4000 (Qualcomm Snapdragon X Plus X1P-66-100) |
Technologies and extensions
Technological capabilities and additional instructions supported by EPYC 9355. You'll probably need this information if you require some particular technology.
| AES-NI | + | |
| AVX | + | |
| Precision Boost 2 | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| AMD-V | + |
Memory specs
Types, maximum amount and channel number of RAM supported by EPYC 9355's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR5 |
Graphics specifications
General parameters of a GPU integrated into EPYC 9355.
| Integrated graphics card | N/A |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 5.0 | |
| PCI Express lanes | 128 |
