Seems the sr2 may not be worth the 4x what I paid for my ($100) Supermicro X8 board after all..
The wPrime benchmark also highlighted that while the SR-2 is great for overclocking, it isn’t the fastest dual-Xeon motherboard around, as the Supermicro X8DTU-F, beat it in wPrime and several other tests. This is hardly surprising given that Supermicro has been making dual-processor motherboards for decades, while the SR-2 is EVGA’s first such board. The Supermicro X8DTU-F also proved faster than the SR-2 in both Cinebench tests. However, while the former is a very straightlaced motherboard that doesn’t support overclocking, the SR-2 can speed up your Xeons. For example, in Cinebench 11, the SR-2 increased the score of its Xeon X5650s from 13.56 to 19.22 when overclocked, a performance increase of 42 per cent. What’s more, the overclocked X5650s were significantly faster than the X5680s, which scored 17.03 at their stock speed.
The four other professional application benchmarks we ran on the SR-2 all tell a similar story. Our CPU rendering test in LightWave 9.6 for example ran 44 per cent faster on the overclocked X5650s in the SR-2 than on the stock speed X5650s in the Supermicro X8DTU-F. FlamMap didn’t show as much of a difference, but there was still an additional 20 per cent extra performance to be had from overclocking. The CFD calculating benchmark Euler3D showed results midway between LightWave and FlamMap, with a 32 per cent performance boost from overclocking. The landscape generator Terragen 2 showed the least benefit from overclocking, with only a 12 per cent reduction in rendering time.
http://www.bit-tech.net/hardware/motherboards/2010/08/17/evga-classified-sr-2-review/13