AMD R9 300 SERIES ROAD MAP
According to these details all GPUs will be based on the TSMC 20nm Node and will be true Pirate Island cores, which is why nomenclature of the dies will be derivative in nature. Another thing mentioned is that all Pirate Island GPUs will have the DirectX 12 Hardware Feature Set. According to these details the R9 370X is slated for announcement/arrival sometime this July-August this year. The R9 370X will feature a ‘Treasure Island XTX’ core and supposedly has 1536 Stream-processors, 96 Texture Units and 48 ROPs on the uncut die. Of course this road-map precedes the report we got of TSMC having a little trouble with 20nm so I am not sure how valid the time frame is anymore.
Now according to the details, we will see the R9 390X before the R9 380X. The R9 390X will feature the ‘Bermuda XTX’ core and feature a staggeringly high number of SPs, ie. 4224. The Texture Unit count is 264 with 96 ROPs. It is slated to show up late 2014 around November or so. Once again keep in mind the TSMC comment above. Finally the R9 380X which will feature the ‘Fiji XTX’ core and the following die configuration: 3072 SPs, 192 Texture Units and 72 ROPs and should appear sometime early 2015. Now interestingly the R9 390X ‘Bermuda XTX’ GPU is slated to have 512 Bits of Memory Bandwidth while as the R9 380X is slated to have 384 Bits with the R9 370X coming last with 256 Bits. Now the road-map even hints at the clock speeds of AMD’s future GPUs but I think it is prudent to mention that all these tech specs at this point in time are about as solid as the wind. However let us continue, with the help of this table:
NVIDIA GeForce GTX 880 Details Surface
Okay, so this again is a speculative post, but I just noticed that some information regarding the pending GeForce GTX 880 is spreading like a hot fire on the web. Basically according to a report from Tyden.cz and Expreview the pending GeForce GTX 880 would be based on Nvidia Maxwell NVIDIA's GM204 GPU. The product would get 3200 Shader processors and almost 8 Billion transistors. Apparently this is not even the flagship GPU, but if you have a peek at the specs (which you should take with a grain of salt) then the DirectX 12 compatible GPU would be SSM enabled, streaming multiprocessor Maxwell.
That is a SIMD design we have seen on the 750, but with more Shader clusters. The Nvidia GM204 silicon would be 20nm and gets 7.9 billion transistors with a whopping 3,200 CUDA cores. The product would get 200 TMUs and 32 ROPs offering a 5.7 TFLOP/s single-precision floating-point throughput. Memory you are looking at a 256-bit wide GDDR5 memory interface with 4 GB being the standard memory amount. With a memory clock-speed of 7.4 Ghz that would get the product a 238 GB/s memory bandwidth. The reference products would get a 900 MHz core with 950 MHz GPU Boost and a 230W board power.
Source>> 1. http://www.guru3d.com/news_story/amd...00_series.html