Originally Posted by ColdDeckEd
Same number of cores, ROPs, memory bandwidth almost identical. It's a die shrunk, tweaked Antigua/Tonga. Tonga was a tweaked Tahiti. A rx x70 does outperform them due to the higher clocks, but I wouldn't say its significantly faster than my old oc'd 280x.
2 Shader-Engines (Geometry/Tessellation-Engines)
16 CUs per Shader Engine
32 CUs or 2048 cores in total
768 KB L2$
4 improved Shader-Engines (Geometry/Tessellation-Engines)
9 CUs per Shader Engine
36 CUs or 2304 cores in total
32 ROPs with Delta Color Compression
2048 KB L2$
GCN 1/3 vs. 4 with 2048 ALUs, 1040 Mhz and roughly the same raw bandwidth:
Originally Posted by chaosblade
Everything I've seen has referred to it as GCN5, including most recently the anandtech Scorpio article. Could all be speculation, but it indicates AMD hasn't confirmed otherwise.
AMDs Timothy Lottes referred to Vega as GCN5, Page 35:
The architecture is vastly improved in comparison to GCN Gen 3.