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<ul> <li>2019/4/22 17:15:09</li> <li>cdQ原?/li> <li>来源Q?span>电脑?/span></li> <li>报纸~辑Q?a id="editor" href="/EditorArticle/40/" style="text-decoration: underline; color: blue;">电脑?/a></li> <li>作者:</li> </ul> </div> <div class="sub4summary"> 【电脑报在线】NVIDIAC代图灉|构的昑֍最大的改变是加入了对实时光线q踪技术的支持Qؓ此NVIDIA图灉|构的昑֍由GTX改ؓ了RTX以突出区别? </div> <div class="sub4text"> <p><br /></p><p>NVIDIAC代图灉|构的昑֍最大的改变是加入了对实时光线q踪技?span style="font-family:{线;">的支持,为此</span>NVIDIA图灉|构的昑֍由GTX改ؓ了RTX以突出区别。由于RTX 20pd拥有<span style="font-family:{线;">专属?/span>RT核心来进行光U追t的计算<span style="font-family:{线;">Q所以这一技术也?/span>RTX 20pd的专属特?span style="font-family:{线;">Q即使是</span>GTX 16pd的图灉|构显卡也无法支持。不q?span style="font-family:{线;">上个月的</span>GTC2019上,NVIDIA CEO黄仁勋亲自宣布老的帕斯卡架构及以上的显卡也能通过驱动更新获得实时光线q踪技术的支持Qƈ且支持这一修改的驱动在本月p实装?span style="font-family:{线;">如今支持q一Ҏ的</span>NVIDIA GeForce Game Ready 425.31驱动已经正式发布Q我们一h看看老显卡在光线q踪上的表现吧?/p><p> <img src="http://www.9236821.live/pic/HJZ/2019/15/6.jpg" alt="" /></p><p> </p><p> <img src="http://www.9236821.live/pic/HJZ/2019/15/7.jpg" alt="" /></p><p align="center">GeForce Game Ready 425.31 WHQL驱动可以<span style="font-family:{线;">?/span>GTXpd昑֍支持光线q踪</p><p> </p><p><strong><span style="font-family:{线;">可能被打怺</span> RT核心q不是光q的必要条g</strong></p><p><span style="font-family:{线;">׃</span>NVIDIA<span style="font-family:{线;">一直都宣称</span>RTX 20<span style="font-family:{线;">pd拥有专属?/span>RT核心用于光线q踪计算Q所以让大家形成了RT<span style="font-family:{线;">核心是用实时光U追t的必要条g的思维。但实际上光U追t技术ƈ不是一个新技术,L们很q的电媄Ҏ中早已经用到Q?/span>NVIDIA<span style="font-family:{线;">只是其带到了实际游戏中。随着旉的推U,来多的质疑也慢慢多了hQ大家渐渐意识到</span>RT核心g不是开启光U追t的必要条g?/p><p> </p><p><span style="font-family:{线;">早些时候,有号U显卡危机的</span>3A大作《孤岛危?》的开发商Crytek在基于最新版CryEngine5.5引擎的演C频Neon Noir中展CZ“实时光U追t”功能通过API实现Q与g没有M关系Q它能在NVIDIA和AMDML的显卡上面运行。在视频中,CrytekҎ了该D|C频是在AMD Radeon RX Vega 56q_上完成的实时渲染?/p><p> </p><p><span style="font-family:{线;">在</span>GDC2019上NVIDIA<span style="font-family:{线;">宣布ؓ帕斯卡架构的昑֍通过驱动提供光线q踪后,</span>AMD也在随后的会议进E中宣布了自家的<span style="color:rgb(51, 51, 51);">Radeon Rays</span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">光线q踪解决ҎQƈ宣布完全免费。实际上Q目前游戏中的光U追t都是通过微Y</span></span><span style="color:rgb(51, 51, 51);">DX12<span style="font-family:{线;">中的</span><span style="font-family:Arial;">DXR API</span><span style="font-family:{线;">接口来实现的Q?/span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">而两家的昑֍都采用了通用q算架构的设计,</span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">所?/span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">其实都是能通过通用q算架构提供支持Q?/span>N</span><span style="color:rgb(51, 51, 51);">VIDIA RTX 20</span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">pd加入?/span>R</span><span style="color:rgb(51, 51, 51);">T</span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">核心在这里其实只是v?/span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">一?/span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">提高</span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">效率</span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">的作?/span></span><span style="color:rgb(51, 51, 51);"><span style="font-family:{线;">?/span></span></p><p> </p><p><strong><span style="font-family:{线;">更新驱动</span> <span style="font-family:{线;">?/span>GTX昑֍用上光线q踪</strong></p><p>在GeForce Game Ready 425.31 WHQL驱动E序的更新说明中<span style="font-family:{线;">Q我们可以看到其相比之前版本最大的变化是?/span>GTXpd昑֍也可以实现实时光U追t。能够获得支持的昑֍型号最低要求ؓGTX 1060 6GB<span style="font-family:{线;">Q?/span>GTX 1060 3GB的玩家大概已l哭晕)<span style="font-family:{线;">Q具体支持型号ؓQ?/span>NVIDIA Titan V、NVIDIA Titan XP、Titan X、NVIDIA GeForce GTX 1080 Ti、NVIDIA GeForce GTX 1080、NVIDIA GeForce GTX 1070 Ti、NVIDIA GeForce GTX 1070、NVIDIA GeForce GTX 1060 6 GB和NVIDIA GeForce GTX 1660 Ti以及囄架构<span style="font-family:{线;">?/span>GTX 16pdGTX 1660QGTX 1660 Ti?/p><p> </p><p><strong><span style="font-family:{线;">光追性能实测</span> GTXpd昑֍到底能玩吗?</strong></p><p><span style="font-family:{线;">能支持和能获得良好的体验q是两回事,通过之前的测试,我们已经了解?/span>RTX 20<span style="font-family:{线;">pd最低端?/span>RTX 2060<span style="font-family:{线;">在游戏中如果惌获得</span>60fps以上的速,在不开启DLSS<span style="font-family:{线;">的情况下仅能开启中{效果的</span>DXR<span style="font-family:{线;">。由?/span>GTX 10<span style="font-family:{线;">?/span>16<span style="font-family:{线;">pd昑֍没有张量计算核心Q所以也是无法开?/span>DLSS<span style="font-family:{线;">的。也是说想要在</span>1080P下能够流畅运行光U追t,臛_需要达到RTX 2060<span style="font-family:{线;">的光q性能Q所以我们以</span>RTX 2060<span style="font-family:{线;">为参考,用手中的</span>GTXpd昑֍q行了对比测试?/p><p> </p><p> </p><p>试q_Q?/p><p>处理器:IntelLi7-8700K</p><p>LQ华ROG MAXIMUS X FORMULA</p><p>内存Q芝奇光戟DDR4 3200 8GB×2</p><p>昑֍Q烦泰RTX2080Ti-11GD6玩家力量臛_PGF OC14</p><p>盘QAsgard 512GB</p><p>甉|Q航嘉MVP K850</p><p>操作pȝQWindows10 64bit 1809专业?/p><p> </p><p> </p><table border="1" cellspacing="0"><tbody><tr><td width="318" valign="top" nowrap="nowrap" colspan="3" style="background:rgb(216,216,216);"><p align="center"><span style="background:rgb(127,127,127);">3</span><span style="background:rgb(127,127,127);">DM</span><span style="background:rgb(127,127,127);">ark</span><span style="background:rgb(127,127,127);"> P</span><span style="background:rgb(127,127,127);">ort</span><span style="background:rgb(127,127,127);"> R</span><span style="background:rgb(127,127,127);">oyal试</span></p></td></tr><tr><td valign="top" nowrap="nowrap"><p> </p></td><td valign="top" nowrap="nowrap"><p>得分</p></td><td valign="top" nowrap="nowrap"><p>帧速fps</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1060 </p></td><td valign="top" nowrap="nowrap"><p>827</p></td><td valign="top" nowrap="nowrap"><p>3.83</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1070Ti</p></td><td valign="top" nowrap="nowrap"><p>1416</p></td><td valign="top" nowrap="nowrap"><p>6.56</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1080</p></td><td valign="top" nowrap="nowrap"><p>1489</p></td><td valign="top" nowrap="nowrap"><p>6.97</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660</p></td><td valign="top" nowrap="nowrap"><p>1426</p></td><td valign="top" nowrap="nowrap"><p>6.60</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660 Ti</p></td><td valign="top" nowrap="nowrap"><p>1539</p></td><td valign="top" nowrap="nowrap"><p>7.13</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>RTX 2060</p></td><td valign="top" nowrap="nowrap"><p>4019</p></td><td valign="top" nowrap="nowrap"><p>18.61</p></td></tr></tbody></table><p> </p><p>3DMark Port Royal光线q踪试<span style="font-family:{线;">场景是一个既有阴影又有两ơ反等的复杂场景。我们可以看到参与测试的</span>GTX<span style="font-family:{线;">pd昑֍没有一块速超q了</span>10fpsQ虽然我们手中目前没有GTX1080TiQ但是通过和GTX1080<span style="font-family:{线;">的性能换算来看Q即使是旗舰U的</span>GTX1080Ti应该也不会超q?0fpsQ而RTX 2060<span style="font-family:{线;">几乎是其两倍的性能。图灉|构的</span>GTX 1660<span style="font-family:{线;">?/span>GTX 1660 Ti的性能则和GTX1070Ti、GTX 1080<span style="font-family:{线;">基本持^。从以往的测试我们已l知道,单纯的游戏性能?/span>RTX 2060<span style="font-family:{线;">是低?/span>GTX1080的,但是在光U追t测试上却远了GTX1080<span style="font-family:{线;">Q这也反映出</span>RT核心对于光线q踪的效率提升还是比较大的?/p><p> </p><table border="1" cellspacing="0"><tbody><tr><td width="330" valign="top" nowrap="nowrap" colspan="3" style="background:rgb(216,216,216);"><p align="center">古墓丽媄Q暗影(1080P预设最高画质)</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>单位Qfps</p></td><td valign="top" nowrap="nowrap"><p>光追关闭</p></td><td valign="top" nowrap="nowrap"><p>光追开?/p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1060 </p></td><td valign="top" nowrap="nowrap"><p>55</p></td><td valign="top" nowrap="nowrap"><p>19</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1070Ti</p></td><td valign="top" nowrap="nowrap"><p>85</p></td><td valign="top" nowrap="nowrap"><p>33</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1080</p></td><td valign="top" nowrap="nowrap"><p>89</p></td><td valign="top" nowrap="nowrap"><p>38</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660</p></td><td valign="top" nowrap="nowrap"><p>64</p></td><td valign="top" nowrap="nowrap"><p>33</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660 Ti</p></td><td valign="top" nowrap="nowrap"><p>76</p></td><td valign="top" nowrap="nowrap"><p>36</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>RTX 2060</p></td><td valign="top" nowrap="nowrap"><p>89</p></td><td valign="top" nowrap="nowrap"><p>49Q?6 DLSSQ?/p></td></tr></tbody></table><p> </p><p><span style="font-family:{线;">《古墓丽影:暗媄》的光线q踪要素主要为阴q渲染Q相Ҏ说计压力较一些。如果以</span>30fps为勉玩的标准Q那么我们可以看到GTX1070Ti、GTX1080<span style="font-family:{线;">?/span>GTX 1660<span style="font-family:{线;">?/span>GTX 1660 Ti均已过q个标准Q同时也可以看出囄架构的GTX 1660<span style="font-family:{线;">?/span>GTX 1660 Ti即没有RT<span style="font-family:{线;">核心Q在应付光线q踪的时候也要比帕斯卡架构的</span>GTX1070Ti和GTX 1080<span style="font-family:{线;">效率高一些。?/span>GTX 1060<span style="font-family:{线;">的表现就比较差了Q如果想要获得比较流畅的帧速表现只有降低特效等U和分L率来实现Q有些得不偿失。根?/span>GTX1080<span style="font-family:{线;">的表玎ͼ我们也可以大致换出</span>GTX1080Ti的成l应该在50fps左右Q和RTX 2060的体验就比较接近了?/p><p> </p><table border="1" cellspacing="0"><tbody><tr><td width="330" valign="top" nowrap="nowrap" colspan="3" style="background:rgb(190,190,190);"><p>《地铁:逃离》Benchmark 1080P High</p></td></tr><tr><td valign="top" nowrap="nowrap"><p> </p></td><td valign="top" nowrap="nowrap"><p>关闭光追</p></td><td valign="top" nowrap="nowrap"><p>开启光q?/p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1060</p></td><td valign="top" nowrap="nowrap"><p>41.58</p></td><td valign="top" nowrap="nowrap"><p>15.05</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1070Ti</p></td><td valign="top" nowrap="nowrap"><p>62.54</p></td><td valign="top" nowrap="nowrap"><p>26.43</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660</p></td><td valign="top" nowrap="nowrap"><p>45.92</p></td><td valign="top" nowrap="nowrap"><p>17.2</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>GTX 1660 Ti</p></td><td valign="top" nowrap="nowrap"><p>52.01</p></td><td valign="top" nowrap="nowrap"><p>19.81</p></td></tr><tr><td valign="top" nowrap="nowrap"><p>RTX 2060</p></td><td valign="top" nowrap="nowrap"><p>65.19</p></td><td valign="top" nowrap="nowrap"><p>46.79(54.45 DLSS)</p></td></tr></tbody></table><p> </p><p> </p><p><span style="font-family:{线;">《地铁:d》的光线q踪要素为全局照明和环境光遮蔽Q对光线数量的要求比较苛刻,负蝲也很高。从试来看Q?/span>GTX<span style="font-family:{线;">pd昑֍的表现比较糟p,?/span>RTX 2060的表现差距很大,完全达不到可玩的E度。和RTX 2060<span style="font-family:{线;">游戏性能差不?/span>GTX1070Ti在开启光q后只有前者差不多一半的帧速,可见RT核心q是有不的作用?/p><p> </p><p><strong><span style="font-family:{线;">ȝQ体验画面尚?/span> <span style="font-family:{线;">体验游戏没戏</span></strong></p><p>NVIDIA没有食言Q确实通过更新驱动让GTX10<span style="font-family:{线;">?/span>GTX16<span style="font-family:{线;">pd昑֍支持了光U追t,让拥有帕斯卡架构昑֍的玩家不必升U硬件就可以L受光U追t的力。但支持归支持,׃~少?/span>RT<span style="font-family:{线;">核心Q所?/span>GTX<span style="font-family:{线;">pd昑֍的光U追t效率很低,开启光U追t特效后的性能下降太厉宻I即是帕斯卡架构的旗舰</span>GTX1080Ti在游戏性能上远RTX 20pd最低端的RTX 2060Q光U追t性能也无法达到后者的水^?/p><p> </p><p><span style="font-family:{线;">所以,q次驱动升支持光线q踪Q更像是</span>NVIDIA<span style="font-family:{线;">的一ơ营销</span>——让玩家感受到光U追t的真实画面体验而又体验到显卡的无力Q从而生更新硬件的冲动Q从而拉动RTX 20pd的销量。但狮子认为,惌通过q样的方式让玩家为光U追t买单,恐怕还是不太现实,毕竟目前支持光线q踪的游戏还处于慢慢丰富的阶D,大多数玩家在能流畅运行的情况下可能还是会选择{待Q等到技术更加成熟和游戏更加丰富的时候再入手?/p><p> </p><p><span style="font-family:{线;">再者,</span>AMD也宣布了自己的光U追t解x案,我们也希望能快在游戏中能看到其实际表现。虽然光U追t目前还处于叫好不叫座的状态,但是随着g厂商和游戏厂商的共同努力Q相信未来游戏能为我们呈C个更加真实的世界?/p> </div> <div class="invest" id="vote" style="display: none"> </div> <div class="s4pg martop10"> <div class="pager"> </div> </div> <div class="sub4frht"> 本文2019-04-22出版的《电脑报?019q第15?E.gDIY</br> (|站~辑QPCW-hjz)</br> </br> </br> </div> </div> <div class="share"> <table> <tr> <td> <div class="bdsharebuttonbox"> <a href="#" class="bds_kaixin001" data-cmd="kaixin001" title="分n到开心网" style="float: 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