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Integer operations in GCN

Question asked by Myrmecophagavir on Oct 6, 2012
Latest reply on Oct 11, 2012 by Bdot

How does the GCN architecture handle integer operations? Do the vector ALUs have an integer path as well as float, or is it all done on that single scalar thing that each compute unit apparently has?  The reason I'm asking is I saw worse performance for an integer workload on a 7970 compared to a GeForce GTX 580 - the 7970 takes over twice as long to run the kernel. IIRC the Fermi architecture has integer & float paths in its main ALUs.