Thanks Paul! OneSparse author here, we're still in early dev stages (OneSparse requires some new features in postgres that won't be available until pg18) but my plan is to do a benchmark shootout with various graph tool for postgres. Initial results look good, on my 4-core 11th gen intel laptop we're getting some really good numbers!

             LiveJournal                 Orkut
  Nodes:     3,997,962                   3,072,441
  Edges:     34,681,185                  117,185,037
  Triangles: 177,820,130                 627,583,972

                  Seconds  Edges/Second  Seconds  Edges/Second
  Tri Count LL:   2.69     12,892,634    32.03    3,658,602
  Tri Count LU:   1.78     19,483,812    16.38    7,156,338
  Tri Centrality: 1.45     23,918,059    12.22    9,589,610
  Page Rank:      7.12     4,870,953     23.14    5,064,176

Orkut was as big as I could go due to limited RAM. One of my constrains is limited access to big enough hardware to do the kinds of Graphs Of Unusual Size (billions of edges, trillions of triangles) where we can really flex the scale that CUDA support gives us. Stay tuned!