PCPer posted a review on the Sapphire AMD Radeon HD 4870 X2 2GB
A quote from the article:
>> Sapphire AMD Radeon HD 4870 X2 2GB Review - AMD's Triumph
NVIDIA is in trouble; and on many fronts. Their chipset division has had some extreme highs and lows recently and AMD's graphics cards have quickly caught up with NVIDIA past performance advantages. The new HD 4870 X2 we previewed before is back and giving NVIDIA fits...
>> Sapphire AMD Radeon HD 4870 X2 2GB Review - AMD's Triumph