AMD · Ryzen 9 · 2023 · AM5
The AMD Ryzen 9 7900 is a desktop processor with 12 cores, released in 2023 at an MSRP of $429. It is part of the Ryzen 9 lineup, using the Ryzen 7000 platform, and fits the AM5 socket. Internally, it is built on the "Zen 4" architecture. Thanks to AMD Simultaneous Multi-Threading (SMT), each core can handle two instruction streams simultaneously, yielding a total of 24 threads for improved parallelism. The Ryzen 9 7900 has a base clock of 3.7 GHz and can boost up to 5.4 GHz depending on workload and thermal headroom. AMD manufactures the "Zen 4" silicon on a 5nm process node. The multiplier is unlocked, making overclocking straightforward. This processor supports DDR5 memory. ECC memory is supported, provided the motherboard enables it. With a TDP of 65W, the Ryzen 9 7900 is an efficient chip suitable for modest cooling solutions. Integrated graphics are provided by the Radeon solution, so a discrete GPU is not required for display output. The cache hierarchy consists of 64KB/core of L1, 12MB of L2, and 64MB of L3 cache — an unusually large L3 that greatly benefits latency-sensitive workloads like gaming.
| Brand | AMD |
|---|---|
| Family | Ryzen 9 |
| Series | Ryzen 7000 |
| Architecture | Zen 4 |
| Type | Desktop |
| Launch year | 2023 |
| Cores | 12 |
| Threads | 24 |
| Base clock | 3.7 GHz |
| Boost clock | 5.4 GHz |
| L1 cache | 64KB/core |
| L2 cache | 12MB |
| L3 cache | 64MB |
| TDP | 65W |
| Socket | AM5 |
| Process | 5nm |
| Memory type | DDR5 |
| Integrated graphics | Radeon |
| Chipsets | X670E, X670, B650E, B650, A620 |
| Launch MSRP | $429 |
| Part number | 100-100000590BOX |
| OEM / tray part number | 100-000000590 |