Memory
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System Memory - Mainboard & GPU
- 512 MB of Unified GDDR3 RAM
- Unified Memory Architecture
- Reduces cost and complexity of the motherboard design
- 700 MHz DDR
- Effective transmission rate of 1.4 GHz on the 128-bit bus
- Unified memory architecture (GPU & CPU Access)
- GPU 10MB eDRAM
- 128-bit interface to ATI's memory controller
Memory Bandwidth
- 32 GB/s GPU to eDRAM bandwidth
- 2 GHz @ 2 accesses per clock cycle on a 64 bit DDR bus
- 22.4 GB/s memory interface bus bandwidth (low latency path to CPU cores)
- 700 MHz @ 2 accesses per clock cycle (one per edge) on a 128 bit bus
- 256 GB/s memory bandwidth to EDRAM
- 21.6 GB/s front-side bus
- Southbridge bandwidth of 500 MB/s.