From: Virtual Prototyping and Performance Analysis of Two Memory Architectures
 | AMD Opteron | Intel Xeon |
---|---|---|
Core Speed | 2 GHz | 2 GHz |
Speed | N/A | 2 GHz |
Speed | 2 GHz | N/A |
Crossbar Speed | 2 GHz | N/A |
FSB Speed | N/A | 1066 MHz (Width  =  4 B) |
Speed | 2 GHz (Width  =  4 B) | N/A |
L1 Cache Speed | 1 GHz | 1 GHz |
L2 Cache Speed | 1 GHz | 1 GHz |
RAM Speed | 1638.4 MHz | 1638.4 MHz |
I1 Cache Size | 64 kB | 64 kB |
D1 Cache Size | 64 kB | 64 kB |
L2 Cache Size | 4 MB (2 MB  per  core) | 4 MB (shared  cache) |