Txawm tias thaum lub sij hawm tshaj tawm ntawm thawj GeForce RTX 20 series video phaib, ntau tus ntseeg tias Turing GPUs tshuav lawv tsis nyob rau hauv tag nrho cov me me qhov ntev mus rau lub xub ntiag ntawm ntxiv units: RT cores thiab tensor cores. Tam sim no, ib tus neeg siv Reddit tau txheeb xyuas cov duab infrared ntawm Turing TU106 thiab TU116 GPUs thiab xaus lus tias cov khoos phis tawj tshiab tsis siv ntau qhov chaw raws li qhov xav tau.
Yuav pib nrog, cia peb nco qab tias Turing TU106 GPU yog tus yau tshaj plaws thiab compact NVIDIA nti nrog tshwj xeeb RT cores rau txoj kab hluav taws xob tracing thiab tensor cores rau kev ua kom muaj kev txawj ntse ntse. Nyob rau hauv lem, Turing TU116 graphics processor, uas muaj feem xyuam rau nws, yog deprived ntawm no tshwj xeeb xam units thiab yog vim li cas nws thiaj li tau txiav txim siab los sib piv lawv.
NVIDIA Turing GPUs tau muab faib ua TPC units, uas suav nrog ib khub ntawm streaming multiprocessors (Streaming Multiprocessors), uas twb suav nrog tag nrho cov suav cores. Thiab raws li nws hloov tawm, Turing TU106 GPU tsuas muaj 1,95 mm² TPC thaj tsam ntau dua li Turing TU116, lossis 22%. Ntawm thaj chaw no, 1,25 mm² yog rau tensor cores, thiab tsuas yog 0,7 mm² yog rau RT cores.
Nws hloov tawm tias tsis muaj lub tensor tshiab thiab RT cores, tus flagship Turing TU102 graphics processor, uas underlies GeForce RTX 2080 Ti, yuav nyob tsis 754 mm², tab sis 684 mm² (36 TPC). Nyob rau hauv lem, lub Turing TU104, uas yog lub hauv paus ntawm GeForce RTX 2080, yuav nyob 498 mm² es tsis txhob ntawm 545 mm² (24 TPC). Raws li koj tuaj yeem pom, txawm tias tsis muaj tensor thiab RT cores, cov laus Turing GPUs yuav yog cov chips loj heev. Tseem ceeb dua Pascal GPUs.
Yog li dab tsi yog vim li cas rau qhov luaj li cas? Rau qhov pib, Turing GPUs tau muaj cov cache loj dua. Qhov loj ntawm shaders kuj tau nce, thiab Turing chips muaj cov kev qhia loj dua thiab cov npe loj dua. Tag nrho cov no ua rau nws muaj peev xwm nce tsis tau tsuas yog thaj chaw xwb, tab sis kuj yog qhov ua tau zoo ntawm Turing GPUs. Piv txwv li, tib lub GeForce RTX 2060 raws li TU106 muab yuav luag tib theem ntawm kev ua tau zoo li GeForce GTX 1080 raws li GP104. Qhov kawg, los ntawm txoj kev, muaj 25% ntau dua ntawm CUDA cores, txawm hais tias nws nyob thaj tsam ntawm 314 mm2 piv rau 410 mm2 rau TU106 tshiab.
Tau qhov twg los: 3d xov.ru