http://videocardz.com/46407/amd-radeon-r9-290x-290x-specifications-confirmed-leaked-slide
the specs seem to be from an official slide. ROP count is still missing. the R9 290X has 10% more sp and a 5.5% higher clock compared to R9 290. so at stock speeds a performance diff of 10 - 12% is probable. if priced at USD 450 R9 290 has the potential to be an awesome card. clock for clock the R9 290 will most likely be around 5- 7% slower than R9 290X. both these cards are going to be good competition for GTX 780 :thumbsup:
the specs seem to be from an official slide. ROP count is still missing. the R9 290X has 10% more sp and a 5.5% higher clock compared to R9 290. so at stock speeds a performance diff of 10 - 12% is probable. if priced at USD 450 R9 290 has the potential to be an awesome card. clock for clock the R9 290 will most likely be around 5- 7% slower than R9 290X. both these cards are going to be good competition for GTX 780 :thumbsup: