Jacob Roach / Digital Trends
For month now , we ’ve been hear rumors that AMD gave up on itsbest graphics cardfrom the upcomingRDNA 4lineup , and instead prefer to target the midrange segment . However , that does n’t intend that such a GPU was never in the study . information minelaying revealed that the card may indeed have been planned , and if it was ever released , it would ’ve given Nvidia ’s RTX 4090 a run for its money .
The top GPU in query , commonly referred to as Navi 4C or Navi 4X , was recognize in some piece data for AMD ’s GFX12 batting order — which appear to be a computer code name for RDNA 4 . The data was then posted by Kepler_L2 , a well - known hardware leaker , onAnandtech forums . What at first glimpse seems to be many lines of code actually reveal the specs of the reportedly cancel graphics menu .
Jacob Roach / Digital Trends
These are not the full specs that we ’re getting , of course , but what we ’re seeing here is perhaps the most important specification — the phone number of shader engine , ranging from zero to eight , for a total of nine . This imply a very high - end design for the RDNA 4 flagship and would mark a substantial increase over theRX 7900 XTX , which sports six shader engines . In the same discussion thread , another substance abuser reported that the Navi 4X GPU was have in mind to have over 200 compute social unit ( CUs ) . That ’s twice the number of the RX 7900 XTX , which add up with 96 CUs .
The artwork wag was also articulate to boast a major architectural variety , sporting three graphics compute decease ( GCDs ) , each with three shader engine . This is the multi - chiplet design that leakers first mentioned as a possible action for RDNA 3 , then RDNA 4 , and now , RDNA 5 . Regardless of computer architecture , such an increase in CUs would make for a competitive GPU .
For comparability , if this rumored RX 8900 XTX would have been twice as fast as the RX 7900 XTX , it could outperform Nvidia ’s RTX 4090 in raw rasterization . There would still be DLSS 3 to give Nvidia a cost increase , but that would n’t have made it less of a major win for AMD .
However , by the time this GPU would have comeout , Nvidia’sRTX 5090would have been aright around the box , most likely ready to exact the crown yet again , along with the rest of theRTX 50 - series . That could be why AMD is reportedly sticking to less extreme GPUs in the forthcoming generation .
These few bank line of code are perhaps the most real leak we ’ve had about this GPU so far , but the true statement is that we do n’t know anything for a fact just yet . AMD is yet to confirm anything one style or the other . But most leaker agree — this GPU , however great it might have been , will not see the light of daytime in this generation of graphics circuit board .
