????AMD??????г????????????????????HBM??GPU?????????????????δ???????1???HBM???????Nvidia??HBM?????????????????????
????AMD???????????????HBM????????????????4GB????????????????4?????????????1GB??????
???????HBM??????GDDR5???????????????????λ??????????????С?????????????????????????????????????1GB GDDR5???672????????????1GB HBM????35????????
????AMD????????HBM?????PCB???????R9 290XС50%??GDDR5??DRAMо???32λ???R9 290X???16??о????512λ??????????HBM????1024λ???????????????????100GB/sec??????????512GB/sec??