Your CPU wants to help with ray tracing as well?

Subject: General Tech | January 9, 2019 - 03:50 PM |
Tagged: gaming, battlefield V, ray tracing, RTX 2080, RTX 2070

[H]ard|OCP have been spending a lot of time with Battlefield V, determining the effect of enabling ray tracing on performance.  In their latest look, they compare the effect of running the game on an i9-9700K running at 4.6GHz versus an i7-7700K at 5GHz.  Their results are quite clear, when testing they saw a performance difference between 1-1.5 fps; well within the margin of error. 

When it comes to BFV, your CPU is not the limiter on your performance.

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"We have been doing some deep dives into playing Battlefield V 64-person multiplayer lately and testing what exactly the cost of using NVIDIA Ray Tracing is in terms of framerate performance using new NVIDIA RTX 2070 and RTX 2080 cards. We did get questioned on using a 5GHz overclocked 7700K instead of the suggested CPU that EA recommends."

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January 9, 2019 | 05:08 PM - Posted by CPUChipletsAndMoreThanJustInputOutputDIEsMaybeSoon (not verified)

So Nvidia's software Engineering/Drivers Engineering folks are helping the games developers in getting their games/gaming engines tweaked for RTX/Turin's Ray Tracing and Tensor core IP.

I have also seen Games/Visualization workloads run on Titan V's and Teslas where Ray Tracing was accelerated via the CUDA cores! That's The Pre RTX GPU way of acclerating with Ray Tracing/BFH(bounding volume hierarchy) calculations on GPUs that lack the Hardware Ray Tracing IP that Turing has.

This is going to be done via Microsoft's DXR where you just know that Microsoft will have 2 code path in DXR, one that will either make use of RTX/Turing's ray tracing hardware or the other that will go the software/GPU shader cores path for non RTX enabled Nvidia/AMD GPUs.

I'm going to be looking at RTX/Turing more after Blender 3D/other open source software get their code refactored for CUDA 10(required for RTX/Turing support)! And hopefully Nvidia will port RTX/Turing's Ray Tracing support over to Nvidia's Version of OpenCL/OpenGL also because there is still plenty of non gaming graphics software that still makes use of the older graphics/compute APIs.

So I'll expect that Microsoft's DXR will offer an alternative Ray Tracing code path to allow for some more limited games Ray Tracing via GPU Shader Core acceleration on Pascal/Vega-GCN GPUs! Microsoft does make use of AMD's Semi-custom APUs for XBOX consoles so DXR will probably be there also.

Hell just looking at the 8 core Ryzen 3000/Matisse desktop variant's die shot from Today's AMD/CES live blog gets me to thinking that maybe MS could just order a semi-custom Vega-2 Die-Chiplet/MCM and fill out that empty space on the Ryzen 3000's MCM and get some sort of next generation console variant from that. The Ryzen matisse 14nm I/O die could be customizied for MS/Console use to support GDDR6 or even HBM2, other MS console specific IP. MS could even have AMD add in some Tensor Core IP that's tuned for AI based Upscaling and get MS's Next generation XBOX consoles closer to looking like 4k native. All the cell phone SOCs are getting Tensor Cores(Neural Processor Cores) and that Modular Chiplets thing is the next wave as even Intel is getting into that game.

January 10, 2019 | 08:49 AM - Posted by Power (not verified)

It seems noone told Nvidia that precise / raytraced reflections make no sense whatsoever in multiplayer games on a 2D display:

1. If I point game camera at a glass which should be in focus: what is behind the glass or reflection?

2. I play as a Scottish solder in a traditional kilt and I stand in a puddle. I look straight down. What do I see?

January 10, 2019 | 09:54 AM - Posted by CollosalCollapse (not verified)

> I play as a Scottish solder in a traditional kilt and I stand in a puddle. I look straight down. What do I see?

A true Scotsman.

January 10, 2019 | 12:38 PM - Posted by Anonymice8996 (not verified)

You're missing the point. None of these "articles" that you see on PCPer and elsewhere are overly concerned with "ray tracing", it's just a pretext. These are all just native ads for the game "Battlefield 5", which has been selling poorly in comparison to its contemporaries since its launch. EA has been so desperate with this game, it was on sale a week after launch, which is a bad sign for a AAA title from a major studio (DICE). Also, like some other titles, it's be given away with many different purchases on NewEgg.

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