DriverHeaven posted a review on the Gainward Radeon HD 4870 1GB Golden Sample video card
A quote from the article:
>> Gainward Radeon HD 4870 1GB Golden Sample Review
On our test bench today is Gainwards Golden Sample version of the latest high end video card to be released by ATI, the Radeon HD 4870 1GB. Rumours and news about this particular model have been around since before the 512MB version made it to launch but it has taken some time for the 1GB model to reach the marketplace and it enters into a slightly more crowded segment than it would have three months ago. The main reason for this is the release of the 216 unified shader GTX 260 within the last fortnight.
>> Gainward Radeon HD 4870 1GB Golden Sample Review