The biggest new features on the TeraScale 2 project are present on:

- Instruction Sets
- Stream Processor Units
- SIMD Layout
- Graphic engine
- Texture Units
- Render Back-Ends
- Display Controllers

There aren’t many relevant differences in the GPU blocks from the RV770 in an overall view. It’s also true that the previous architecture was highly enhanced to obtain a chip with great performances. Compared to the 4870, the Radeon HD 5870 have twice as many SIMD Engines, which also doubles the amount of Stream Cores and Texture Units.