Kwangexesha lokubhengezwa kwamakhadi evidiyo yokuqala ye-GeForce RTX 20, abaninzi babekholelwa ukuba ii-Turing GPUs azinatyala kuzo zonke imilinganiselo encinci kubukho beeyunithi ezongezelelweyo: ii-RT cores kunye ne-tensor cores. Ngoku, omnye umsebenzisi weReddit uhlalutye imifanekiso ye-infrared ye-Turing TU106 kunye ne-TU116 GPUs kwaye wagqiba kwelokuba iiyunithi zekhompyuter ezintsha azithathi ndawo kangako njengoko bekucingelwa ekuqaleni.
Ukuqala, masikhumbule ukuba i-Turing TU106 GPU yeyona nto incinci kunye neyona compact ye-NVIDIA chip ene-RT ekhethekileyo yokulandela umkhondo kunye ne-tensor cores yokukhawulezisa imisebenzi yobukrelekrele bokwenziwa. Ngapha koko, iprosesa yemizobo ye-Turing TU116, ehambelana nayo, ivinjwa ezi yunithi zekhompyuter ezikhethekileyo kwaye kungenxa yoko kwagqitywa ukuba zithelekiswe.
Ii-GPU ze-NVIDIA Turing zahlulwe kwiiyunithi ze-TPC, ezibandakanya isibini sokusasaza ii-multiprocessors (Ukusasaza ii-Multiprocessors), ezisele ziquka zonke ii-cores ze-computing. Kwaye njengoko kuvela, i-Turing TU106 GPU ine-1,95 mm² ngaphezulu kwendawo ye-TPC kune-Turing TU116, okanye i-22%. Kulo mmandla, i-1,25 mm² yeye-tensor cores, kwaye yi-0,7 mm² kuphela yeye-RT cores.
Kuyavela ukuba ngaphandle kwe-tensor entsha kunye ne-RT cores, iprosesa yemizobo ye-Turing TU102, ephantsi kwe-GeForce RTX 2080 Ti, ayizukuhlala i-754 mm², kodwa i-684 mm² (36 TPC). Ngokulandelayo, i-Turing TU104, esisiseko se-GeForce RTX 2080, inokuthatha i-498 mm² endaweni ye-545 mm² (24 TPC). Njengoko ubona, nangaphandle kwe-tensor kunye ne-RT cores, ii-GPU zeTuring ezindala ziya kuba ziichips ezinkulu kakhulu. Ngokubalulekileyo ngakumbi iiPascal GPUs.
Ngoko siyintoni isizathu sobukhulu obungaka? Ukuqala, iiTuring GPUs zineesayizi ezinkulu ze-cache. Ubungakanani bee-shaders nabo bonyusiwe, kwaye ii-chips ze-Turing zineesethi ezinkulu zomyalelo kunye neerejista ezinkulu. Konke oku kwenze ukuba kube lula ukonyusa kakhulu kungekuphela nje indawo, kodwa kunye nokusebenza kweTuring GPUs. Ngokomzekelo, i-GeForce RTX 2060 efanayo esekelwe kwi-TU106 inika phantse inqanaba elifanayo lokusebenza njengeGeForce GTX 1080 esekelwe kwi-GP104. Le yokugqibela, ngendlela, ine-25% inani elikhulu le-CUDA cores, nangona ithatha indawo ye-314 mm2 kunye ne-410 mm2 ye-TU106 entsha.
umthombo: 3dnews.ru