AMD · Athlon 64 FX · 2003 · 940
The AMD Athlon 64 FX-51 is a desktop processor with 1 core, released in 2003 at an MSRP of $733. It is part of the Athlon 64 FX lineup, using the Athlon 64 FX platform, and fits the 940 socket. Internally, it is built on the "K8" architecture. It operates at a fixed 2.2 GHz. AMD manufactures the "K8" silicon on a 130nm process node. The multiplier is unlocked, making overclocking straightforward. This processor supports Registered DDR memory. With a TDP of 89W, the Athlon 64 FX-51 sits in a typical power envelope for a modern desktop CPU. This processor has no integrated graphics — a discrete GPU is required. The cache hierarchy consists of 64KB of L1 and 1MB of L2 cache. There is no L3 cache on this processor.
SledgeHammer die — the first Athlon 64 FX. Required expensive registered ECC DDR memory (Socket 940 platform), making it an enterprise-grade workstation chip at a consumer-facing price. Launched September 2003.
| Brand | AMD |
|---|---|
| Family | Athlon 64 FX |
| Series | Athlon 64 FX |
| Architecture | K8 |
| Type | Desktop |
| Launch year | 2003 |
| Cores | 1 |
| Threads | 1 |
| Base clock | 2.2 GHz |
| Boost clock | 2.2 GHz |
| L1 cache | 64KB |
| L2 cache | 1MB |
| TDP | 89W |
| Socket | 940 |
| Process | 130nm |
| Memory type | Registered DDR |
| Integrated graphics | None |
| Chipsets | nForce3 Pro 150, nForce Pro 250 |
| Launch MSRP | $733 |
| Part number | ADAFX51BOX |
| OEM / tray part number | ADAFX51CEP5AK |