Rather than increase the rendering pipelines for the Radeon X1000 series, ATi has shrunk the die and gone for higher core clock frequencies. Using a 90nm TSMC process, core frequencies of over 600MHz are achievable. Currently the fastest Radeon available is the X1800XL and it is designed to take on the GeForce 7800 GT. While both products share a similar price tag they are designed quite differently.
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