As you might have guessed, ATI's new Radeon HD 4890 videocard is well placed to compete with enthusiast videocards like the Radeon HD 4870 1GB and Geforce GTx275. What makes the ASUS EAH4890 HTDI/1GD5/A particularly stand out from the crowd is a special tool in its overclocking feature set - GPU Voltage Tweaking. And if PCSTATS own overclocking tests are anything to go by, pushing the Radeon HD 4890 to 1000MHz core is certainly possible!