http://techfrag.com/2016/05/19/amd-polaris-10-11-specs-hit-web-8-gb-gddr5x-memory-clocked-7-gbps/
More juicy bits about AMDs upcoming Polaris 10 and Polaris 11 GPUs have leaked out ahead of the June 1st launch, revealing specs and other features.
According to the leak, the Polaris 10 GPU features 32 compute units (CUs), with each CU comprising of 64 shaders on Polaris for a total of 2,048 shaders. The memory system would see GDDR5/X connected through a 256-bit bus. Graphics cards would feature as much as 8GB of memory that will be initially clocked at 7 Gbps.
Further, the 8 GB GDDR5X delivers a total of 224 GB/s memory bandwidth on Polaris. For comparison, the existing Hawaii-based R9 390X features twice the GDDR5Xs memory bus, that is 512-bit GDDR5 bus which results in memory bandwidth of 384 GB/s on Hawaii.
Along with fewer shaders and less memory bandwidth, Polaris 10 features lower TFLOPS value as well 5.5 TFLOPS vesus R9 390Xs 5.9. However, the Polaris 10 GPU uses much less power with TDP rated at no more than 150 watts. Which allows the GPU to easily win the performance per watt race!
This appears to meet AMDs claims that the Polaris architecture will be a true generation leap, and would offer gamers a sweet deal in terms of performance per dollar.
Not much new...but if GDDR5X is used, these cards could be interesting at $299-329.