Moving on to Turing with all cores (FP32, INT32, RT, Tensor), we see the time is almost 1/4 of the total time it took for Pascal to render the frame.This is, without a doubt, the best time to jump into cloud gaming. In comparison, a Turing RTX 2080 with no RT cores but INT32 cores almost halves the time it needs to render the frame. In the first section, we have GTX 1080 Ti which only relies on its FP32 cores to render the frame and takes a whole lot of time to do so. Following you can see a single frame breakdown of Pascal and Turing GPUs in Metro Exodus. So with Turing and a combination of intelligent RT and Tensor Cores, NVIDIA doesn't have to create a monster GPU but instead can scale down to a more reasonable GPU while delivering decent if not stellar raytracing performance. Simply put, that is not a practical approach. A scaled up version of Pascal that would deliver 60 FPS in Metro Exodus with ray tracing enabled, just based on pure raw FP32 performance would end up being a 650W, 35 Billion transistor chip with a die size of 1324mm2, rocking a total of 44 TFLOPs of FP32 compute power. When it comes to the fastest Pascal gaming graphics card, the GTX 1080 Ti, that beast with its huge *competition crushing* 10 TFLOPs+ compute power only allows for 18 FPS at 1440p resolution. Metro Exodus was taken as an example and both Pascal and Turing were compared to each other. NVIDIA also shared some interesting insights into how Turing allocates its various resources in rendering a scene with real-time raytracing. The drivers, however, will not enable DLSS support on non-RTX cards as that is a hardware-based feature that's only possible through the use of Tensor cores. The upcoming driver which lands in April will enable support for DXR for the aforementioned cards and existing games with DXR will support the cards just fine with the latest NVIDIA GeForce drivers. Features such as raytracing reflections will work fine but the more taxing effects such as raytracing based global illumination would require some serious horsepower and that's where RTX comes in. The driver will also support NVIDIA GeForce and Max-Q based notebooks with the respective GPUs so that's another reason you should be excited for your Pascal graphics cards.Īccording to NVIDIA, while all of these non-RTX cards would indeed support real-time raytracing, the feature will be limited to Basic RT effects along with a lower ray count than what's possible on the architecturally tuned RTX graphics cards. The cards that will be supported through the latest driver will include: NVIDIA has announced that they will be releasing a new GeForce Driver in April which will enable DXR support for Pascal GeForce 10 series and Turing GeForce 16 series graphics cards. However, Pascal owners cannot use DXR API since the support wasn't available until now. Starting off with the GeForce 10 series cards, the Pascal-based lineup is still widely popular among the masses and has a large user base. That's support for Microsoft's DXR API which will enable real-time raytracing capabilities in existing and upcoming gaming titles. Come GDC 2019, NVIDIA is now enabling another feature which was previously locked down to the newly released Turing GPU based graphics cards.
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