The development of the Polaris GPUs dates back to the time when we reviewed the Radeon 380x graphics card which was AMD's best price/performance graphics card. AMD wants to push further by introducing more efficient technologies with headroom for greater performance. Today, we have the all-new AMD Radeon RX 480 graphics card sporting the Polaris 10 GPU.
Design and Specifications
We have come a long way since the days of the 90nm fab process back in 2005. A decade later, the Polaris 10 GPU marks the introduction of the first 14nm FinFET graphics solutions to hit the market. These chips are built to offer almost up to 2.8x times performance/watt benefits at reduced voltage requirements
Compared to the previous generations, AMD has implemented up to 2304 GCN 4.0 stream processors on the new RX480 (36 Compute Units), along with a memory bandwidth speed of 224GB/s (256-bit memory bus size). Interestingly, AMD will be releasing the RX 480 in both 4GB and 8GB GDDR5 variants. The one being reviewed today is the 4GB version.
Further breaking down the Radeon RX 480:
- A single graphics command processor
- 4 improved Asynchronous compute engines
- 4 geometry processors
- 32 pixels/output clock
- 144 texture units
- 576 32b Load/Store units
- 2MB L2 cache with improved utilization
- 4K encode/decode support
- Display port 1.3/1.4 HDR
- True Direct X 12 and Vulkan API support