NVIDIA itatha kuwonetsa zenizeni zenizeni pa makadi a kanema a GeForce RTX, n'zovuta kukayikira kuti teknolojiyi (mogwirizana ndi rasterization algorithm) ndi tsogolo la masewera apakompyuta. Komabe, ma GPU otengera kamangidwe ka Turing okhala ndi ma RT cores apadera mpaka posachedwapa adawonedwa ngati gulu lokhalo la ma GPU omwe ali ndi mphamvu zamakompyuta zoyenera izi.
Monga mayesero a masewera oyambirira omwe adadziwa bwino Ray Tracing (Battlefield V, Metro Eksodo ndi Shadow of the Tomb Raider) asonyeza, ngakhale GeForce RTX accelerators (makamaka ang'ono kwambiri, RTX 2060) akukumana ndi kutsika kwakukulu kwamitengo mu hybrid ntchito zoperekera. Ngakhale zapambana koyambirira, kutsata ma ray munthawi yeniyeni sikunakhale ukadaulo wokhwima. Pokhapokha ngati zida zapamwamba kwambiri komanso zodula, komanso makadi ojambula apakatikati afika pamiyezo yofananira pamasewera atsopano, zitha kulengeza kuti kusintha kwa paradigm komwe kunayambitsidwa ndi kampani ya Jensen Huang kwachitika.
Kutsata Ray mu Pascals - zabwino ndi zoyipa
Koma tsopano, ngakhale palibe mawu omwe adanenedwa ponena za wolowa m'malo mwa Turing zomangamanga, NVIDIA yaganiza zolimbikitsa kupita patsogolo. Pamsonkhano wa GPU Technology Conference mwezi watha, gulu lobiriwira lidalengeza kuti ma accelerators pa tchipisi za Pascal, komanso mamembala otsikira a banja la Turing (GeForce GTX 16 series), apeza magwiridwe antchito a nthawi yeniyeni potsata RTX. - zopangidwa ndi branded. Masiku ano, dalaivala wolonjezedwayo akhoza kutsitsa kale patsamba lovomerezeka la NVIDIA, ndipo mndandanda wazida umaphatikizapo mitundu ya banja la GeForce 10, kuyambira ndi GeForce GTX 1060 (mtundu wa 6 GB), katswiri wa TITAN V accelerator pa chipangizo cha Volta, ndipo, zachidziwikire, mitundu yatsopano yomwe yangofika kumene pagulu lamitengo yapakatikati pa chip TU116 - GeForce GTX 1660 ndi GTX 1660 Ti. Kusinthaku kudakhudzanso ma laputopu okhala ndi ma GPU ofanana.
Kuchokera pamalingaliro aukadaulo, palibe chauzimu apa. Ma GPU okhala ndi mayunitsi ogwirizana a shader adatha kuchita Ray Tracing kalekale asanatulukire zomangamanga za Turing, ngakhale panthawiyo sanali othamanga mokwanira kuti izi zitheke pamasewera. Kuphatikiza apo, panalibe muyezo wofanana wa njira zamapulogalamu, kupatula ma API otsekedwa monga eni NVIDIA OptiX. Tsopano popeza pali chowonjezera cha DXR cha Direct3D 12 ndi malaibulale ofanana mu mawonekedwe a pulogalamu ya Vulkan, injini yamasewera imatha kuwapeza mosasamala kanthu kuti GPU ili ndi malingaliro apadera, bola ngati woyendetsa apereka izi. Tchipisi tating'onoting'ono tili ndi ma RT cores osiyana pazifukwa izi, ndipo mu purosesa ya Pascal GPU ndi TU116 purosesa, kusaka kwa ray kumayendetsedwa mwanjira yapakompyuta yokhazikika pamitundu yambiri ya shader ALUs.
Komabe, zonse zomwe tikudziwa za zomangamanga za Turing kuchokera ku NVIDIA yokha zikusonyeza kuti Pascal siyoyenera kugwiritsa ntchito DXR. M'chiwonetsero cha chaka chatha choperekedwa ku zitsanzo zamtundu wa banja la Turing - GeForce RTX 2080 ndi RTX 2080 Ti - akatswiri adapereka mawerengedwe otsatirawa. Ngati mutaya zonse za khadi lojambula bwino kwambiri la ogula la m'badwo wotsiriza - GeForce GTX 1080 Ti - mu kuwerengera kwa ray, zotsatira zake sizidzapitirira 11% ya zomwe RTX 2080 Ti imatha. Chofunikiranso ndikuti ma CUDA aulere a Turing chip amatha kugwiritsidwa ntchito nthawi yomweyo pokonza magawo ena azithunzi - kuphatikizika kwa mapulogalamu a shader, mzere wa mawerengedwe osajambula a Direct3D panthawi yophatikizika, ndi zina zotero.
M'masewera enieni, zinthu zimakhala zovuta kwambiri, chifukwa opanga ma hardware omwe alipo kale amagwiritsa ntchito DXR mu mlingo, ndipo gawo la mkango la computing load likadali lotanganidwa ndi malangizo a rasterization ndi shader. Kuphatikiza apo, zina mwazotsatira zosiyanasiyana zomwe zimapangidwa pogwiritsa ntchito kusaka kwa ray zitha kuchitidwanso bwino pamagulu a CUDA a tchipisi cha Pascal. Mwachitsanzo, magalasi owoneka mu Nkhondo ya V satanthauza kuwunikira kwachiwiri, chifukwa chake ndi katundu wotheka wa makadi amphamvu amphamvu am'badwo wam'mbuyomu. Zomwezo zimagwiranso ntchito pamithunzi mu Shadow of the Tomb Raider, ngakhale kupereka mithunzi yovuta yopangidwa ndi magwero angapo owunikira ndi ntchito yovuta kwambiri. Koma kufalikira kwapadziko lonse mu Metro Exodus ndikovuta ngakhale kwa Turing, ndipo Pascal sangayembekezere kutulutsa zotsatira zofananira pamlingo uliwonse.
Chilichonse chomwe munthu anganene, tikukamba za kusiyana kochuluka muzochita zamaganizo pakati pa oimira zomangamanga za Turing ndi mafananidwe awo apamtima pa Pascal silicon. Kuphatikiza apo, osati kupezeka kwa ma RT cores, komanso kusintha kochulukirapo kwa ma accelerator a m'badwo watsopano kumasewera mokomera Turing. Chifukwa chake, tchipisi ta Turing imatha kugwira ntchito zofananira pa data yeniyeni (FP32) ndi integer (INT), kunyamula kukumbukira kosungirako komweko ndikupatula ma cores a CUDA kuti awerengeredwe molondola (FP16). Zonsezi zikutanthauza kuti Turing sikuti imangogwira bwino mapulogalamu a shader, komanso imatha kuwerengera kufufuza kwa ray moyenera popanda midadada yapadera. Kupatula apo, chomwe chimapangitsa kuti kugwiritsa ntchito Ray Tracing kukhala kofunikira kwambiri sikumangokhalira kufunafuna njira zodutsana pakati pa cheza ndi zinthu za geometry (zomwe ma RT cores amachita), koma kuwerengera kwa utoto pamalo ophatikizika (shading). Ndipo mwa njira, zabwino zomwe zalembedwa pamapangidwe a Turing zimagwira ntchito ku GeForce GTX 1660 ndi GTX 1660 Ti, ngakhale chip TU116 ilibe RT cores, kotero kuyesedwa kwa makadi amakanemawa omwe ali ndi pulogalamu yotsatirira ndi chidwi kwambiri.
Koma chiphunzitso chokwanira, chifukwa tasonkhanitsa kale deta pa ntchito ya "Pascals" (komanso "Turings" wamng'ono) ku Battlefield V, Metro Eksodo ndi Shadow of the Tomb Raider kutengera miyeso yathu. Dziwani kuti ngakhale dalaivala kapena masewera omwewo sasintha kuchuluka kwa kuwala kuti achepetse katundu pa ma GPU opanda RT cores, zomwe zikutanthauza kuti zotsatira za GeForce GTX ndi GeForce RTX ziyenera kukhala zofanana.
Test stand, kuyesa njira
| benchi yoyesera | |
|---|---|
| CPU | Intel Core i9-9900K (4,9 GHz, 4,8 GHz AVX, pafupipafupi) |
| Mayiboard | ASUS MAXIMUS XI APEX |
| Kumbukirani ntchito | G.Skill Trident Z RGB F4-3200C14D-16GTZR, 2 x 8 GB (3200 MHz, CL14) |
| ROM | Intel SSD 760p, 1024 GB |
| Mphamvu yogwiritsa ntchito magetsi | Corsair AX1200i, 1200 W |
| CPU yozizira dongosolo | Corsair Hydro Series H115i |
| Nyumba | CoolerMaster Test Bench V1.0 |
| polojekiti | Chithunzi cha NEC EA244UHD |
| opaleshoni dongosolo | Mawindo 10 ovomereza x64 |
| Pulogalamu ya NVIDIA GPU | |
| NVIDIA GeForce RTX 20 | NVIDIA GeForce Game Ready Driver 419.67 |
| NVIDIA GeForce GTX 10/16 | NVIDIA GeForce Game Ready Driver 425.31 |
| Mayesero amasewera | ||||
|---|---|---|---|---|
| Masewera | API | Zokonda, njira yoyesera | Full screen anti-aliasing | |
| 1920 × 1080 / 2560 × 1440 | 3840 × 2160 | |||
| Nkhondo ya V | DirectX 12 | OCAT, Liberte mission. Max. zithunzi khalidwe | TAA Pamwamba | TAA Pamwamba |
| Metro Eksodo | DirectX 12 | Benchmark yomangidwa. Mbiri Yabwino Kwambiri ya Zithunzi Zapamwamba | TAA | TAA |
| Mthunzi wa okwera mitumbira | DirectX 12 | Benchmark yomangidwa. Max. zithunzi khalidwe | SMAA 4x | Kutseka |
Zizindikiro za mitengo yapakati komanso yocheperako zimachokera kunthawi zoperekera mafelemu pawokha, zomwe zimajambulidwa ndi benchmark yomangidwa (Metro Exodus, Shadow of the Tomb Raider) kapena zida za OCAT, ngati masewerawa alibe imodzi. (Nkhondo V).
Chiyerekezo cha chimango mumatchati ndichosiyana ndi nthawi yachithunzicho. Kuti muyerekeze kuchuluka kwa chimango, chiwerengero cha mafelemu opangidwa mu sekondi iliyonse ya mayeso amawerengedwa. Kuchokera pamndandanda wa manambala awa, mtengo wolingana ndi 1st percentile ya kugawa kumasankhidwa.
Otenga nawo mayeso
Makadi amakanema otsatirawa adatenga nawo gawo pakuyesa magwiridwe antchito:
- NVIDIA GeForce RTX 2080 Ti Founders Edition (1350/14000 MHz, 11 GB);
- NVIDIA GeForce GTX 2080 Oyambitsa Edition (1515/14000 MHz, 8 GB);
- NVIDIA GeForce RTX 2070 Oyambitsa Edition (1410/14000 MHz, 8 GB);
- NVIDIA GeForce RTX 2060 Oyambitsa Edition (1365/14000 MHz, 6 GB);
- NVIDIA GeForce GTX 1660 Ti (6 GB);
- NVIDIA GeForce GTX 1660 (6 GB);
- NVIDIA GeForce GTX 1080 Ti (1480/11000 MHz, 11 GB);
- NVIDIA GeForce GTX 1080 (1607/10000 MHz, 8 GB);
- NVIDIA GeForce GTX 1070 Ti (1608/8008 MHz, 8 GB);
- NVIDIA GeForce GTX 1070 (1506/8008 MHz, 8 GB);
- NVIDIA GeForce GTX 1060 (1506/9000 MHz, 6 GB).
Nkhondo ya V
Chifukwa chakuti Battlefield V yokha ndi masewera opepuka (makamaka pa 1080p ndi 1440p modes), ndipo imagwiritsa ntchito ray tracing mu zigamba, kuyesa GeForce 10-mndandanda ndi njira ya DXR idapereka zotsatira zolimbikitsa. Komabe, pamitundu yonse yopanda chithandizo cha Ray Tracing pamlingo wa silicon, tidayenera kudziletsa kumitundu ya GTX 1070/1070 Ti ndi GTX 1080/1080 Ti. Masewera a Electronic Arts amakumana ndi zokayikitsa pakusintha pafupipafupi kwa kasinthidwe ka hardware ndikuletsa wogwiritsa ntchito kwa tsiku limodzi kapena angapo. Chifukwa chake, miyeso ya magwiridwe antchito a GeForce GTX 1060 ndi zida ziwiri za GeForce GTX 16 ziwoneka m'nkhaniyi pambuyo pake, Nkhondo V ikadzachotsa zoletsa pamakina athu oyesera.
Malinga ndi kuchuluka, aliyense mwa omwe adachita nawo mayesowo adakumana ndi kutsika kofanana kwa magwiridwe antchito pamawonekedwe osiyanasiyana amtundu wa ray, mosasamala kanthu za mawonekedwe a skrini. Chifukwa chake, magwiridwe antchito a makadi a kanema pansi pa mtundu wa GeForce RTX 20 amachepetsa ndi 28-43% ndi zotsatira zotsika komanso zapakatikati za DXR, ndi 37-53% yokhala ndi mawonekedwe apamwamba komanso apamwamba.
Ngati tikukamba za mitundu yakale ya banja la GeForce 10, ndiye kuti pa Low and Medium ray tracing milingo masewerawa amataya 36 mpaka 42% ya FPS, komanso pamtundu wapamwamba (Zokonda kwambiri ndi Ultra) DXR imadya kale 54-67. % ya mtengo wa chimango. Zindikirani kuti m'masewera ambiri, ngati si ambiri, Battlefield V masewera palibe kusiyana pakati pa Low ndi Medium zoikamo, kapena pakati High ndi Ultra, malinga ndi mwina chithunzi kumveka kapena kachitidwe. Muchiyembekezo kuti a Pascal GPU angakhudzidwe kwambiri ndi izi, tidayesa mayeso pamakonzedwe onse anayi. Zowonadi, kusiyana kwina kudawonekera, koma pakusankha kwa 2160p komanso mkati mwa 6% FPS.
Mwamtheradi, ma accelerator akale a Pascal tchipisi amatha kusunga mitengo pamwamba pa 60 FPS mu 1080p mode yokhala ndi mawonekedwe ocheperako, ndipo GeForce GTX 1080 Ti imanenanso zotsatira zomwezi ngakhale ikamatsata Pamwamba. Koma mukangosamukira ku 1440p resolution, GeForce GTX 1080 ndi GTX 1080 Ti yokha imapereka mawonekedwe omasuka a 60 FPS kapena apamwamba ndi Low kapena Medium ray tracing quality, ndipo mu 4K mode, palibe makhadi am'badwo wam'mbuyo omwe ali ndi mphamvu zamakompyuta. monga, Turing iliyonse, kupatulapo mbendera ya GeForce RTX 2080 Ti).
Ngati tiyang'ana kufanana pakati pa ma accelerators enieni pansi pa GeForce GTX 10 ndi GeForce RTX 20 brands, ndiye chitsanzo chabwino kwambiri cha m'badwo wam'mbuyo (GeForce GTX 1080 Ti), womwe ndi wofanana ndi GeForce RTX 2080 mu ntchito zoperekera popanda DXR, idatsikira pamlingo wa GeForce RTX 2070 ndikutsata kutsika kwa ray, ndipo pamilingo yayikulu imatha kulimbana ndi GeForce RTX 2060.
| Nkhondo V, max. Ubwino | |||||
|---|---|---|---|---|---|
| 1920 × 1080 TAA | |||||
| RT Off | RT Low | RT Medium | RT mkulu | RT Chotambala | |
| NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -28% | -28% | -37% | -39% |
| NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -34% | -35% | -43% | -44% |
| NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -35% | -36% | -46% | -45% |
| NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -42% | -43% | -50% | -51% |
| NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -40% | -39% | -54% | -58% |
| NVIDIA GeForce GTX 1080 (8 GB) | 100% | -41% | -41% | -57% | -61% |
| NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -40% | -41% | -57% | -59% |
| NVIDIA GeForce GTX 1070 (8 GB) | 100% | -38% | -39% | -57% | -61% |
| NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
| Nkhondo V, max. Ubwino | |||||
|---|---|---|---|---|---|
| 2560 × 1440 TAA | |||||
| RT Off | RT Low | RT Medium | RT mkulu | RT Chotambala | |
| NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -33% | -34% | -44% | -45% |
| NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -37% | -38% | -47% | -49% |
| NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -36% | -36% | -48% | -48% |
| NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -41% | -42% | -51% | -52% |
| NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -40% | -40% | -59% | -62% |
| NVIDIA GeForce GTX 1080 (8 GB) | 100% | -36% | -39% | -59% | -63% |
| NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -39% | -39% | -58% | -62% |
| NVIDIA GeForce GTX 1070 (8 GB) | 100% | -38% | -38% | -59% | -63% |
| NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
| Nkhondo V, max. Ubwino | |||||
|---|---|---|---|---|---|
| 3840 × 2160 TAA | |||||
| RT Off | RT Low | RT Medium | RT mkulu | RT Chotambala | |
| NVIDIA GeForce RTX 2080 Ti FE (11 GB) | 100% | -30% | -30% | -44% | -47% |
| NVIDIA GeForce RTX 2080 FE (8 GB) | 100% | -31% | -32% | -46% | -49% |
| NVIDIA GeForce RTX 2070 FE (8 GB) | 100% | -40% | -38% | -53% | -52% |
| NVIDIA GeForce RTX 2060 FE (6 GB) | 100% | -28% | -30% | -44% | -53% |
| NVIDIA GeForce GTX 1660 Ti (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1660 (6 GB) | 100% | ND | ND | ND | ND |
| NVIDIA GeForce GTX 1080 Ti (11 GB) | 100% | -36% | -37% | -60% | -63% |
| NVIDIA GeForce GTX 1080 (8 GB) | 100% | -40% | -43% | -64% | -67% |
| NVIDIA GeForce GTX 1070 Ti (8 GB) | 100% | -38% | -42% | -62% | -65% |
| NVIDIA GeForce GTX 1070 (8 GB) | 100% | -36% | -42% | -63% | -66% |
| NVIDIA GeForce GTX 1060 (6 GB) | 100% | ND | ND | ND | ND |
Source: 3dnews.ru