Видеокарта AMD Radeon R9 390X

There is no physical difference Between 215-08520xx project (” Hawaii “) and 215-08800xx (” Grenada “) ASICs.  The only difference Between the full variants (ie CUS 44 and 64 Блоков растеризации (ROP)) with binning and fuse configuration. 215- 0852000 – Hawaii XT (67B0h DID MA-RID 0h, 0h MI-RID) 215-0852022 – Hawaii XT (L) (67B9h DID MA-RID 0h, 0h MI-RID) 215-0880004 – Grenada XT (DID 67B0h MA-RID 8h, MI-RID 0h)The XT (L) bin is the Highest Quality of Hawaii family of ASICs. The dies are binned for LOWEST Possible leakage characteristics in order to reduce the Питание consumption and dissipated heat. it is only Used in 295X2 карты. “Grenada XT” has the Highest leakage characteristics of Hawaii family. Higher leakage makes it Possible reach Higher Частоты without violating the design of electrical characteristics of the die, in terms of voltage. The down sides in using high leakage ASICs are the Higher Temperatures through the board and Higher Питание consumption (due Temperatures and lower VRM efficiency). Any Производительность difference Between “Hawaii” and “Grenada” карты is Caused by the display driver. AMD changed the configuration fused in a way the driver can tell the difference Between “the old” Hawaii and “the new” Grenada карты. They both obviously share the DeviceID but “Grenada” Their карты have revision number bumped to 8 hours (instead of 0h on Hawaii). The revision number is Configured by the fuse configuration During manufacturing and can not be Altered by the bios on retail карты. If you are testing differences Between “Hawaii” and “Grenada” bioses, note That “Grenada” bioses have Higher Частоты thru the different Производительность states Than “Hawaii” bioses. This Means That if at some point the card Reaches it’s Питание limit and starts to shuffle through the different Производительность states, the “Grenada” карты Might Appear to Be Faster Than “Hawaii” simply Because of the Higher Частоты. If you are testing the differences Between the two bioses, make sure you have the Питание limit set to the maximum setting (+ 50%) on both of Them. Ps. Internally “Grenada” has been Called as “Hawaii Refresh