It is silly to expect objectiveness on competitor’s site, but at least you should have tried…
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Under the hood both databases store key-value, so CSV is really much more suitable, than JSON. I’ve been using neo4j offline bulk import for ages and it is blazing (100Mln in couple of minutes). So neo4j is quite capable.
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Versions are too outdated. When you have 1/10 of features it is silly to boast speed.
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No advanced tests, like pathfinding on middle and huge weighted graphs. All your testcases do not really need graphdb - even RDBMS could cope fine.