Intel · Core 2 Quad · 2008 · LGA775
The Intel Core 2 Q8400 is a desktop processor with 4 cores, released in 2008 at an MSRP of $183. It is part of the Core 2 Quad lineup, using the Core 2 platform, and fits the LGA775 socket. Internally, it is built on the "Yorkfield" architecture. It operates at a fixed 2.66 GHz. Intel manufactures the "Yorkfield" silicon on a 45nm process node. Its multiplier is locked, so any overclocking has to come from raising the base clock rather than the multiplier. This processor supports DDR2/DDR3 memory. With a TDP of 95W, the Core 2 Q8400 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 32KB/core of L1 and 2MB of L2 cache. There is no L3 cache on this processor.
Entry-level Yorkfield with the smallest L2 per die (2MB). Same clock as Q9400 but reduced cache.
| Brand | Intel |
|---|---|
| Family | Core 2 Quad |
| Series | Core 2 |
| Architecture | Yorkfield |
| Type | Desktop |
| Launch year | 2008 |
| Cores | 4 |
| Threads | 4 |
| Base clock | 2.66 GHz |
| Boost clock | 2.66 GHz |
| L1 cache | 32KB/core |
| L2 cache | 2MB |
| TDP | 95W |
| Socket | LGA775 |
| Process | 45nm |
| Memory type | DDR2/DDR3 |
| Integrated graphics | None |
| Chipsets | X48, X38, P45, P43, G45, G43, P35 |
| Launch MSRP | $183 |