Whereas the original XBox 360 used a Shader Model 3 GPU with on-board 10MB eDRAM for 720p acceleration, the new XBox has a Shader Model 5 capable GPU with 32MB of eDRAM for 1080p output. The GPU again is designed by AMD and runs at a clock rate of 600MHz.
The IBM developed CPU shall have 6 cores instead of the 3 found in the original model.
Each single core shall have the same processing throughput as each single core from the XCPU. Meaning the chip is literally 200% as strong and shall now be on equal footing with the PS3 CELL CPU in GFLOPS performance.
The main system RAM has been upgraded from 512MB to 1024MB, and from GDDR3 to GDDR5.
The system retains a Unified Memory Architecture.
The platform integrates a 2.5" 32GB SSD (Solid State Drive) instead of a HDD (Hard Disk Drive) as found in the original models. The system also uses a standard DVD drive foregoing Blu-ray thus ensuring backwards and forwards compatibility whilst simultaneously keeping the bill of materials low. Internet connectivity is provided via WiFi.
RELEASE & PRICING
Microsoft plans on a Q4 2010 simultaneous worldwide release. The company is targeting a sub $300 price point.