A little earlier this week, it was reported that AMD is working on a new Radeon HD 7800 series graphics card based on the company's 28 nm "Tahiti" silicon. According to a new report, the so-called "Tahiti LE" SKU has been brand named Radeon HD 7890. Although clock speeds, core and memory configurations are still under the wraps, the new SKU, according to the report, is being designed to be 15% faster than GeForce GTX 660 on average, while being similarly priced. AMD is gunning for the crucial X'mas shopping season, when apparently, a few cool people gift high-performance graphics cards.