Motherboards are rarely the bottleneck of system performance, but at the top end of the market you'd expect maximum bang for your buck.

Outperforming the much cheaper Asus P6X58D-E mobo by such a small margin is discouraging enough, but being outperformed in gaming and memory bandwidth tests makes our wallets slam shut.

Video encoding performance

Gigabyte g1.assassin x58 - benchmarks

3D rendering performance

Gigabyte g1.assassin x58 - benchmarks

Gigabyte g1.assassin x58 - benchmarks

1080P gaming performance

Gigabyte g1.assassin x58 - benchmarks

Networking performance

Gigabyte g1.assassin x58 - benchmarks