I already said that I don't consider Sysmark2000 a particularly helpful motherboard benchmark. You can see that the motherboards perform close to identical, only the 7KXA falls back a tiny bit.
In all games the K7V is clearly the winner. However, the distance to its competitors isn't particularly far. It is worth mentioning however, that the Epox 7KXA performs even worse than VIA's own reference board.
In SPECviewperf the picture is the same as above. The K7V is clearly the fastest board in this test, while the 7KXA is just about as fast as VIA's reference board. The K7M with AMD750 'Irongate' and enabled SuperBypass falls back in this test, because it doesn't come with AGP4x support and its memory is only clocked at 100 MHz.