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架构简图
Intel Larrabee Core | Intel Pentium Core (P54C) | Intel Atom Core | |
Manufacturing Process | 45nm | 0.60µm | 45nm |
Simultaneous Multi-Threading | 4-way | 1-way | 2-way |
Issue Width | dual-issue | dual-issue | dual-issue |
Pipeline Depth | 5-stages (?) | 5-stages | 16-stages |
Scalar Execution Resources | 2 x Integer ALUs (?)
1 x FPU (?) |
2 x Integer ALUs
1 x FPU |
2 x Integer ALUs
1 x FPU |
Vector Execution Resources | 16-wide Vector ALU | None | 1 x SIMD SSE |
L1 Cache (I/D) | 32KB/32KB | 8KB/8KB | 32KB/24KB |
L2 Cache | 256KB | None (External) | 512KB |
ISA | 64-bit x86
SSEn support? Parallel/Graphics? |
32-bit x86 | 64-bit x86
Full Merom ISA compatibility |
Larrabee同AMD/NVIDIA的比较:
左边是larrabee核心
Putting it all Together - Return of the Ring Bus:
一个Larrabee有多少个内核?