Ngemva kokuba i-NVIDIA ibonise ukulandelela kwe-ray yesikhathi sangempela kumakhadi wevidiyo ochungechunge lwe-GeForce RTX, kunzima ukungabaza ukuthi lobu buchwepheshe (ngokuhlanganiswa okunengqondo ne-rasterization algorithm) yikusasa lemidlalo yekhompyutha. Kodwa-ke, ama-GPU asekelwe esakhiweni se-Turing anamakhora akhethekile e-RT kuze kube kamuva nje abhekwa njengesigaba sodwa sama-GPU ahlukene anamandla okwenza ikhompuyutha afanele lokhu.
Njengoba ukuhlolwa kwemidlalo yokuqala efunde kahle uRay Tracing (i-Battlefield V, Metro Exodus kanye ne-Shadow of the Tomb Raider) kubonisiwe, ngisho nama-accelerator e-GeForce RTX (ikakhulukazi encane kuwo, i-RTX 2060) yehla kakhulu kumazinga ozimele ku- imisebenzi yokuhlinzeka nge-hybrid. Naphezu kwempumelelo yokuqala, ukulandelela umsebe wesikhathi sangempela akukabi ubuchwepheshe obuvuthiwe. Kuphela uma kungezona kuphela izisetshenziswa ezithuthuke kakhulu nezimba eqolo, kodwa namakhadi emifanekiso aphakathi kwebanga eliphakathi efinyelela ezindinganisweni zokusebenza ezifanayo kugagasi elisha lemidlalo, lapho kuzokwaziwa khona ukumemezela ukuthi ushintsho lwepharadigm olwethulwe yinkampani kaJensen Huang ekugcineni lwenzekile.
Ukulandelela amaRay ku-Pascals - okuhle nokubi
Kodwa manje, nakuba kungakashiwo igama mayelana nomlandeli wesikhathi esizayo wokwakhiwa kweTuring, i-NVIDIA inqume ukugqugquzela inqubekelaphambili. Emcimbini weNgqungquthela ye-GPU Technology ngenyanga edlule, ithimba eliluhlaza limemezele ukuthi ama-accelerator kuma-chips e-Pascal, kanye namalungu aphansi omndeni wakwaTuring (uchungechunge lwe-GeForce GTX 16), azothola ukusebenza kokulandelela kwe-ray ngesikhathi sangempela ngokuhambisana ne-RTX. -imikhiqizo enophawu. Namuhla, umshayeli othenjisiwe usengavele alandwe kuwebhusayithi esemthethweni ye-NVIDIA, futhi uhlu lwamadivayisi luhlanganisa amamodeli omndeni we-GeForce 10, kusukela nge-GeForce GTX 1060 (inguqulo ye-6 GB), i-accelerator ye-TITAN V esezingeni eliphezulu ku-chip ye-Volta, futhi, vele, amamodeli asanda kufika esigabeni samanani amaphakathi ku-chip TU116 - GeForce GTX 1660 kanye ne-GTX 1660 Ti. Isibuyekezo siphinde sathinta amalaptop anama-GPU ahambisanayo.
Ngokombono wezobuchwepheshe, akukho okungaphezu kwemvelo lapha. Ama-GPU anamayunithi we-shader ahlanganisiwe akwazile ukwenza i-Ray Tracing esikhathini eside ngaphambi kokufika kwezakhiwo ze-Turing, nakuba ngaleso sikhathi ayengasheshi ngokwanele ukuze leli khono lidingeke emidlalweni. Ngaphezu kwalokho, belingekho izinga elifanayo lezindlela zesofthiwe, ngaphandle kwama-API avaliwe afana ne-NVIDIA OptiX yokuphathelene. Manje njengoba sekunesandiso se-DXR se-Direct3D 12 nemitapo yolwazi efanayo kusixhumi esibonakalayo sohlelo lwe-Vulkan, injini yegeyimu ingafinyelela kuzo kungakhathalekile ukuthi i-GPU ifakwe ubuhlakani obukhethekile, inqobo nje uma umshayeli enikeza leli khono. Ama-Turing chips anama-RT cores ahlukene ale njongo, futhi ku-Pascal architecture GPU ne-TU116 processor, ukulandelela ama-ray kusetshenziswa ngefomethi yekhompuyutha yenjongo evamile kuhlu lwama-shader ALU.
Kodwa-ke, konke esikwaziyo mayelana nesakhiwo se-Turing esivela ku-NVIDIA ngokwayo kuphakamisa ukuthi i-Pascal ayizilungele izinhlelo zokusebenza ezinikwe amandla i-DXR. Esethulweni sangonyaka odlule esinikezelwe kumamodeli aphambili omndeni wakwaTuring - i-GeForce RTX 2080 kanye ne-RTX 2080 Ti - onjiniyela bethule izibalo ezilandelayo. Uma uphonsa zonke izinsiza zekhadi lehluzo labathengi elingcono kakhulu lesizukulwane sokugcina - i-GeForce GTX 1080 Ti - ezibalweni zokulandela umkhondo, ukusebenza okuwumphumela ngeke kudlule u-11% walokho i-RTX 2080 Ti ekwaziyo ngokombono. Okubaluleke ngokulinganayo ukuthi ama-cores we-CUDA wamahhala we-chip ye-Turing angasetshenziselwa ngesikhathi esifanayo ukucutshungulwa okufanayo kwezinye izingxenye zesithombe - ukukhishwa kwezinhlelo ze-shader, umugqa wezibalo ze-Direct3D ezingezona igraphic ngesikhathi sokubulawa okuhambisanayo, njalonjalo.
Emidlalweni yangempela, isimo siyinkimbinkimbi kakhulu, ngoba kubathuthukisi be-hardware abakhona basebenzisa imisebenzi ye-DXR ngemithamo, futhi isabelo sengonyama somthwalo wekhompyutha sisathathwa yi-rasterization kanye nemiyalo ye-shader. Ngaphezu kwalokho, eminye yemiphumela ehlukahlukene edalwe kusetshenziswa ukulandelela i-ray nayo ingenziwa kahle kuma-CUDA cores of Pascal chips. Isibonelo, indawo yesibuko ku-Battlefield V ayisho ukuvela kwesibili kwemisebe, ngakho-ke kungumthwalo ongenzeka wamakhadi evidiyo anamandla esizukulwane sangaphambilini. Okufanayo kusebenza emthunzini we-Shadow of the Tomb Raider, nakuba ukunikeza izithunzi eziyinkimbinkimbi ezakhiwe imithombo eminingi yokukhanya kakade kuwumsebenzi onzima kakhulu. Kodwa ukusabalala komhlaba wonke ku-Metro Exodus kunzima ngisho naku-Turing, futhi uPascal akunakulindeleka ukuthi akhiqize imiphumela eqhathanisekayo nganoma isiphi isilinganiso.
Noma ngabe umuntu angathini, sikhuluma ngomehluko omningi ekusebenzeni kwethiyori phakathi kwabamele ukwakheka kweTuring kanye nama-analogue abo aseduze ku-Pascal silicon. Ngaphezu kwalokho, hhayi kuphela ubukhona be-RT cores, kodwa futhi neningi lentuthuko ejwayelekile yezimpawu zokusheshisa isizukulwane esisha zidlala ngokuvuna uTuring. Ngakho-ke, ama-Turing chips angenza imisebenzi ehambisanayo kudatha yangempela (FP32) kanye ne-integer (INT), aphathe inani elikhulu lememori yenqolobane yendawo futhi ahlukanise ama-CUDA ama-cores wezibalo ezincishisiwe zokunemba (FP16). Konke lokhu kusho ukuthi i-Turing ayigcini nje ngokuphatha kangcono izinhlelo ze-shader, kodwa futhi ingahlanganisa ukulandelela kwe-ray ngokulinganayo ngaphandle kwamabhulokhi akhethekile. Phela, yini eyenza ukunikezela kusetshenziswa i-Ray Tracing kusebenzise kakhulu izinsiza akukhona nje kuphela futhi akukona ukusesha kwezimpambano phakathi kwemisebe nezinto zejiyomethri (okwenziwa ama-RT cores), kodwa ukubalwa kombala endaweni yokuhlangana (shading). Futhi ngendlela, izinzuzo ezisohlwini lwezakhiwo ze-Turing zisebenza ngokugcwele ku-GeForce GTX 1660 kanye ne-GTX 1660 Ti, nakuba i-chip ye-TU116 ingenawo ama-RT cores, ngakho-ke ukuhlolwa kwalawa makhadi wevidiyo ane-software ray tracing kuyathakazelisa ngokukhethekile.
Kodwa ithiyori eyanele, ngoba sesivele siqoqile idatha ekusebenzeni kwe-"Pascals" (kanye ne-"Turings" encane) e-Battlefield V, i-Metro Exodus kanye ne-Shadow of the Tomb Raider ngokusekelwe ezilinganisweni zethu. Qaphela ukuthi akuwona umshayeli noma imidlalo ngokwayo elungisa inani lemisebe ukuze kwehliswe umthwalo kuma-GPU ngaphandle kwama-RT cores, okusho ukuthi ikhwalithi yemiphumela ku-GeForce GTX ne-GeForce RTX kufanele ifane.
Indawo yokuhlola, indlela yokuhlola
| Isitendi sokuhlola | |
|---|---|
| CPU | I-Intel Core i9-9900K (4,9 GHz, 4,8 GHz AVX, imvamisa engaguquki) |
| I-Motherboard | I-ASUS MAXIMUS XI APEX |
| I-RAM | I-G.Skill Trident Z RGB F4-3200C14D-16GTZR, 2 x 8 GB (3200 MHz, CL14) |
| I-ROM | I-Intel SSD 760p, 1024 GB |
| I-unit supply supply | I-Corsair AX1200i, 1200 W |
| Isistimu yokupholisa ye-CPU | I-Corsair Hydro Series H115i |
| Izindlu | I-CoolerMaster Test Bench V1.0 |
| Gada | Idatha ye-NEC EA244UHD |
| operating system | IWindows 10 Pro x64 |
| Isoftware ye-NVIDIA GPU | |
| I-NVIDIA GeForce RTX 20 | I-NVIDIA GeForce Game Ready Driver 419.67 |
| I-NVIDIA GeForce GTX 10/16 | I-NVIDIA GeForce Game Ready Driver 425.31 |
| Ukuhlolwa kwegeyimu | ||||
|---|---|---|---|---|
| Umdlalo | API | Izilungiselelo, indlela yokuhlola | Isikrini esigcwele sokulwa ne-aliasing | |
| 1920 × 1080 / 2560 × 1440 | 3840 × 2160 | |||
| Ibutho lempi V | I-DirectX 12 | I-OCAT, i-Liberte mission. Ubukhulu. ikhwalithi yezithombe | Inani eliphakeme kakhulu lama-TAA | Inani eliphakeme kakhulu lama-TAA |
| Metro Exodus | I-DirectX 12 | Ibhentshimakhi eyakhelwe ngaphakathi. Iphrofayili Yekhwalithi Yezithombe Eziphezulu | TAA | TAA |
| Umthunzi weTomb Raider | I-DirectX 12 | Ibhentshimakhi eyakhelwe ngaphakathi. Ubukhulu. ikhwalithi yezithombe | SMAA 4x | Cishiwe |
Izinkomba zezilinganiso zozimele ezimaphakathi nobuncane zithathwa ohlwini lwezikhathi zokunikezela zozimele abangabodwana, okurekhodwa ibhentshimakhi eyakhelwe ngaphakathi (i-Metro Eksodos, Shadow of the Tomb Raider) noma insiza ye-OCAT, uma igeyimu ingenayo (Inkundla yempi V).
Izinga lozimele elimaphakathi emashadini liphambene nesikhathi sozimele esimaphakathi. Ukuze ulinganisele isilinganiso esincane sozimele, inani lozimele elakhiwe kusekhondi ngalinye lokuhlolwa liyabalwa. Kulolu hlu lwezinombolo, inani elihambisana nephesenti loku-1 lokusabalalisa likhethiwe.
Abahlanganyeli bokuhlola
Amakhadi evidiyo alandelayo abambe iqhaza ekuhlolweni kokusebenza:
- I-NVIDIA GeForce RTX 2080 Ti Founders Edition (1350/14000 MHz, 11 GB);
- I-NVIDIA GeForce GTX 2080 Founders Edition (1515/14000 MHz, 8 GB);
- I-NVIDIA GeForce RTX 2070 Founders Edition (1410/14000 MHz, 8 GB);
- I-NVIDIA GeForce RTX 2060 Founders Edition (1365/14000 MHz, 6 GB);
- I-NVIDIA GeForce GTX 1660 Ti (6 GB);
- I-NVIDIA GeForce GTX 1660 (6 GB);
- I-NVIDIA GeForce GTX 1080 Ti (1480/11000 MHz, 11 GB);
- I-NVIDIA GeForce GTX 1080 (1607/10000 MHz, 8 GB);
- I-NVIDIA GeForce GTX 1070 Ti (1608/8008 MHz, 8 GB);
- I-NVIDIA GeForce GTX 1070 (1506/8008 MHz, 8 GB);
- I-NVIDIA GeForce GTX 1060 (1506/9000 MHz, 6 GB).
Ibutho lempi V
Ngenxa yokuthi i-Battlefield V ngokwayo ingumdlalo olula ngokwanele (ikakhulukazi kumamodi we-1080p kanye ne-1440p), futhi isebenzisa ukulandelela ama-ray kuma-patches, ukuhlola uchungechunge lwe-GeForce 10 ngenketho ye-DXR kunikeze imiphumela ekhuthazayo. Kodwa-ke, kuwo wonke amamodeli ngaphandle kokusekelwa kweRay Tracing ezingeni le-silicon, bekufanele sizikhawulele kumamodeli we-GTX 1070/1070 Ti kanye ne-GTX 1080/1080 Ti. Imidlalo ye-Electronic Arts isabela ngokusola ezinguqukweni ezivamile ekucushweni kwehadiwe futhi ivimbele umsebenzisi isikhathi sosuku olulodwa noma ezimbalwa. Ngakho-ke, izilinganiso zokusebenza ze-GeForce GTX 1060 kanye namadivayisi amabili we-GeForce GTX 16 azovela kulesi sihloko kamuva, ngokushesha nje lapho i-Battlefield V isusa imikhawulo emshinini wethu wokuhlola.
Ngokwemibandela yamaphesenti, noma yibaphi ababambiqhaza bokuhlola bahlangabezane cishe nokwehla okufanayo ekusebenzeni kumasethingi ahlukahlukene wekhwalithi yokulandelela imisebe, kungakhathaliseki ukulungiswa kwesikrini. Ngakho, ukusebenza kwamakhadi evidiyo ngaphansi komkhiqizo we-GeForce RTX 20 kwehla ngo-28-43% ngemiphumela ye-DXR yekhwalithi ephansi nephakathi, futhi ngo-37-53% ngekhwalithi ephezulu nephezulu.
Uma sikhuluma ngamamodeli amadala omndeni we-GeForce 10, khona-ke emazingeni okulandelela ama-ray aphansi naphakathi umdlalo ulahlekelwa kusuka ku-36 kuya ku-42% we-FPS, futhi ngekhwalithi ephezulu (izilungiselelo eziphezulu ne-Ultra) i-DXR isivele idla u-54-67. % wezinga lozimele. Qaphela ukuthi ezigcawini zegeyimu ye-Battlefield V eziningi, uma kungenjalo, awukho umehluko obonakalayo phakathi kwezilungiselelo eziphansi nezimaphakathi, noma phakathi kwe-High and Ultra, ngokuya ngokucaca kwesithombe noma ukusebenza. Ngethemba lokuthi i-Pascal GPUs izozwela kakhulu kulokhu kulungiselelwa, senze izivivinyo kuzo zonke izilungiselelo ezine. Ngempela, umehluko othile uvele, kodwa kuphela ekuxazululeni okungu-2160p nangaphakathi kuka-6% FPS.
Ngamafuphi, noma imaphi ama-accelerator amadala kuma-chips e-Pascal angagcina amanani ozimele angaphezu kuka-60 FPS ngemodi engu-1080p ngekhwalithi encishisiwe yokubonisa, futhi i-GeForce GTX 1080 Ti ifuna umphumela ofanayo ngisho nalapho ilandelela ezingeni eliphezulu. Kodwa uma usudlulela kusixazululo se-1440p, i-GeForce GTX 1080 ne-GTX 1080 Ti kuphela ehlinzeka ngohlaka olukhululekile lwe-60 FPS noma ngaphezulu ngekhwalithi yokulandelela i-Low noma Medium ray, futhi kumodi ye-4K, alikho ikhadi lesizukulwane sangaphambilini elinamandla afanele wekhompyutha ( njengoba, ngempela, noma iyiphi i-Turing ngaphandle kwe-flagship GeForce RTX 2080 Ti).
Uma sibheka ukufana phakathi kwama-accelerator athile ngaphansi kwe-GeForce GTX 10 kanye ne-GeForce RTX 20 brand, khona-ke imodeli engcono kakhulu yesizukulwane esedlule (GeForce GTX 1080 Ti), okuyi-analogue ye-GeForce RTX 2080 emisebenzini evamile yokuhlinzeka ngaphandle kwe-DXR, yehle yafika ezingeni le-GeForce RTX 2070 ngokulandelela okuncishisiwe kwekhwalithi ye-ray, futhi emazingeni aphezulu ingalwa kuphela ne-GeForce RTX 2060.
| Inkundla yempi V, max. Ikhwalithi | |||||
|---|---|---|---|---|---|
| 1920×1080 TAA | |||||
| I-RT ivaliwe | I-RT Low | I-RT Medium | Inani eliphakeme kakhulu lama-RT | I-RT Ultra | |
| I-NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -28% | -28% | -37% | -39% |
| I-NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -34% | -35% | -43% | -44% |
| I-NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -35% | -36% | -46% | -45% |
| I-NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -42% | -43% | -50% | -51% |
| I-NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -40% | -39% | -54% | -58% |
| I-NVIDIA GeForce GTX 1080 (8 GB) | 100% | -41% | -41% | -57% | -61% |
| I-NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -40% | -41% | -57% | -59% |
| I-NVIDIA GeForce GTX 1070 (8 GB) | 100% | -38% | -39% | -57% | -61% |
| I-NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
| Inkundla yempi V, max. Ikhwalithi | |||||
|---|---|---|---|---|---|
| 2560×1440 TAA | |||||
| I-RT ivaliwe | I-RT Low | I-RT Medium | Inani eliphakeme kakhulu lama-RT | I-RT Ultra | |
| I-NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -33% | -34% | -44% | -45% |
| I-NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -37% | -38% | -47% | -49% |
| I-NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -36% | -36% | -48% | -48% |
| I-NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -41% | -42% | -51% | -52% |
| I-NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -40% | -40% | -59% | -62% |
| I-NVIDIA GeForce GTX 1080 (8 GB) | 100% | -36% | -39% | -59% | -63% |
| I-NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -39% | -39% | -58% | -62% |
| I-NVIDIA GeForce GTX 1070 (8 GB) | 100% | -38% | -38% | -59% | -63% |
| I-NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
| Inkundla yempi V, max. Ikhwalithi | |||||
|---|---|---|---|---|---|
| 3840×2160 TAA | |||||
| I-RT ivaliwe | I-RT Low | I-RT Medium | Inani eliphakeme kakhulu lama-RT | I-RT Ultra | |
| I-NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -30% | -30% | -44% | -47% |
| I-NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -31% | -32% | -46% | -49% |
| I-NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -40% | -38% | -53% | -52% |
| I-NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -28% | -30% | -44% | -53% |
| I-NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| I-NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -36% | -37% | -60% | -63% |
| I-NVIDIA GeForce GTX 1080 (8 GB) | 100% | -40% | -43% | -64% | -67% |
| I-NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -38% | -42% | -62% | -65% |
| I-NVIDIA GeForce GTX 1070 (8 GB) | 100% | -36% | -42% | -63% | -66% |
| I-NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
Source: 3dnews.ru