Benchmark Reviews tested the Diamond Viper ATI Radeon HD 3870 graphics card and published a review.

Quote from the review: "Benchmark Reviews recently reviewed the ZOTAC 8800GT ZT-88TES2P-FSP, NVIDIA's very impressive answer to the HD3800 series. Though the NVIDIA beat ATI/AMD to market, the 8800GT release is a direct result of ATI/AMD's HD 3800 series.
Today we'll be looking at one card responsible for the exceptional mid-range offering we are enjoying, the Diamond VIPER 3870PE4512 - ATI Radeon HD 3870 X2 PCIE 2.0 512MB GDDR4 Video Card; ATI/AMD's mid-range card that curiously happens to be their top performing single GPU card."
Read the full review on Benchmark Reviews.