ATI's Radeon HD 5870 first saw the (official) light of day in late September of last year, but the GPU has managed to age well. In the months since that original debut, we've seen an Eyefinity 6 Edition hit the market for multi-monitor maniacs, and quite a few factory overclocked options have also made their way out. The benchmarking gurus over at Hot Hardware scrounged up three of the latest and greatest, all priced just below the $500 mark, which have core clock speeds that are 100MHz higher than standard a
