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Sun Microsystems, Inc.

Figure 2-1: Single-Core AMD Opteron Processor Architecture (Stepping E and earlier generations)

The Sun Fire X4100 M2 and X4200 M2 servers support AMD Opteron 2200 Series processors (aka stepping F). From the start, AMD64

processors were designed for multi-core architecture the core being connected to IO via a crossbar/SRI. Dual-core AMD Opteron pro-

cessors have unique instances of L1 cache (I-cache and D-cache) and L2 cache for each CPU core. Features of the Dual-Core AMD

Opteron processor include:

• 1207-pin (socket F) package compatitible with next generation multi-core AMD Opteron processor

• One die with 2 CPU cores

• Individual L1 Instruction cache per CPU core

• Individual L1 Data cache per CPU core

• Individual 1 MB L2 cache per CPU core

• Shared memory controller and HyperTransport interconnects for 2 cores

• Fully utilized memory and HyperTransport bandwidths

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