Taiwan-based English tech website OC Heaven has disclosed some performance figures of the upcoming ATI Radeon HD 4890 1 GB graphics accelerator. The tests run are two of the most popular synthetic benchmarks: 3DMark Vantage and 3DMark06. Also disclosed, rather verified, are the card's clock speeds as read by ATI Catalyst Control Center and GPU-Z. The test bed, from what the 3DMark06 window shows, consists of an Intel Core i7 920 CPU running at 2.66 GHz, coupled with 3 GB of system memory. In 3DMark06, the HD 4890 accelerator secured a score of 16,096 points, with SM 2.0 score of 6155, HDR/SM 3.0 score of 7521, and CPU score of 4836. In 3DMark Vantage, it secured a score of P10996. Catalyst Control Center reveals the card's memory bandwidth to be 124.8 GB/s, up from the 111 GB/s on its predecessor, the HD 4870. The early driver in use makes provides "RV790" as the device string to GPU-Z.

Update (03/19):Ukrainian website Overclockers.com.ua has come up with a more comprehensive 3DMark shootout between cards in this segment. Radeon HD 4890 and HD 4890 CrossFireX are part of the comparison. The testers used an Intel Q6600 CPU running on an X48 motherboard with 4 GB of memory. The article can be read (Google-translated to English) here.