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Raytracing without RTX: Nvidia Pascal receives DXR support via driver
Nvidia announced that it will bring support for Microsoft's DXR-API (the API responsible for real-time ray tracing), to older GPUs. This invokes the 10-series and recently introduced 16-series GPUs series.
The new driver thus makes it possible to use real-time raytracing in games via DXR as part of DirectX 12 without exclusive RT cores and thus on the traditional computing cores. However, with DXR effects enabled, performance will be significantly lower than Turing's counterparts with specialized RT cores - so the purpose remains to be seen. Also AMD could use DXR on its Radeon graphics cards, if supported by the driver. AMD has not yet released an official raytracing driver.
A new GeForce driver is due to be released in April, that one will add the compatibility. The Titan X, Titan V and Titan XP would also get supported. It is good to note that laptops with similar GPUs may also expect to get DX-R with the new driver, including the more economical Max-Q versions. Performance can be disappointing, NVIDIA mentions. Only very basic raytracing effects would work.
DLSS remains exclusively for Turing RTX
From now on Raytracing will no longer be available exclusively on GeForce RTX at Nvidia. But with DLSS (Deep Learning Super Sampling) it is different. The alternative AI-based antialiasing will continue to be provided only with the dedicated tensor cores of the RTX family, Nvidia said in the Q & A after the GDC presentation to media representatives.
At least theoretically, it would be possible to create a counterpart to the proprietary DLSS via the Microsoft API Windows Machine Learning (WinML) or DirectML. DirectML takes advantage of the unified compute units of GPUs, with which even Radeon graphics cards from AMD could offer such a function, as an AMD employee had already suggested in an interview.
So in short, people can enable DirectX Raytracing ( DXR ) on GeForce GTX 1060 6GB and higher graphics cards via a Game Ready Driver update, expected in April. DLSS, no bueno.
supported GPUs
anders190
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Posts: 23
Joined: 2012-09-17
Member
Posts: 23
Joined: 2012-09-17
#5651436 Posted on: 03/19/2019 08:59 AM
I watched for like 25 minutes last night but was tired before the presentation started and eventually had to give up. While the target audience wasn't consumers it was one hell of a bad presentation. Last years RTX unveil which I considered bad was somewhat better, despite some rambling and an unfocusedness from JHHs part. More enjoyable to read todays news of what happened last night.
While I like that Nvidia actually choose to support Microsofts DXR, it still makes the RTX series even more pointless for those of us looking to upgrade. In Nvidias words, Pascal GPU's are too slow for raytracing. The RTX series leaves a lot to be wanting performance wise, especially with raytracing enabled. The biggest win will be more GPUs on the market that support some form of performance for some kind of raytracing, thus making more developers interested in supporting raytracing.
I'll enjoy trying out how well Quake II raytraced will work. Considering how badly it runs even on a RTX 2080Ti I'm guessing it won't be that enjoyable. But still, getting to try it without shelling out for a 2080Ti is great.
Something I've been wondering about is if it would be possible to do the old dedicated PhysX thing and having a second Pascal card in the system, or even a RTX 2060, to offload ones primary GPU for all the DXR stuff. Won't happen most likely, Nvidia want's us to buy a new, more expensive, RTX card instead. But I had enjoyed the possibility.
I watched for like 25 minutes last night but was tired before the presentation started and eventually had to give up. While the target audience wasn't consumers it was one hell of a bad presentation. Last years RTX unveil which I considered bad was somewhat better, despite some rambling and an unfocusedness from JHHs part. More enjoyable to read todays news of what happened last night.
While I like that Nvidia actually choose to support Microsofts DXR, it still makes the RTX series even more pointless for those of us looking to upgrade. In Nvidias words, Pascal GPU's are too slow for raytracing. The RTX series leaves a lot to be wanting performance wise, especially with raytracing enabled. The biggest win will be more GPUs on the market that support some form of performance for some kind of raytracing, thus making more developers interested in supporting raytracing.
I'll enjoy trying out how well Quake II raytraced will work. Considering how badly it runs even on a RTX 2080Ti I'm guessing it won't be that enjoyable. But still, getting to try it without shelling out for a 2080Ti is great.
Something I've been wondering about is if it would be possible to do the old dedicated PhysX thing and having a second Pascal card in the system, or even a RTX 2060, to offload ones primary GPU for all the DXR stuff. Won't happen most likely, Nvidia want's us to buy a new, more expensive, RTX card instead. But I had enjoyed the possibility.
konmarin
Junior Member
Posts: 12
Joined: 2015-09-25
Junior Member
Posts: 12
Joined: 2015-09-25
#5651438 Posted on: 03/19/2019 09:08 AM
gtx 1060 3gb and gtx 1050 ti 4gb are out of the dxr ray tracing equation.Amd rx 570 4gb is "peasant" by nvidia's own words but has more compute power...
Amd also supports the same thing from top to bottom mainstream line up but nvidia's not...
just my two cents
gtx 1060 3gb and gtx 1050 ti 4gb are out of the dxr ray tracing equation.Amd rx 570 4gb is "peasant" by nvidia's own words but has more compute power...
Amd also supports the same thing from top to bottom mainstream line up but nvidia's not...
just my two cents
moo100times
Senior Member
Posts: 379
Joined: 2012-06-24
Senior Member
Posts: 379
Joined: 2012-06-24
#5651443 Posted on: 03/19/2019 09:38 AM
I don't know if this is a response to Crytek or what, but this is a hilarious move. I am all for increasing feature sets, but seems this will simply confuse lines further, and I wonder if this will ever be real world functional on the 16xx cards. Shame the graphs do not include demonstration of 1660 Ti vs 2070 and 2080 for RTX workloads so we can see if any improvement over 1080Ti for that.
I am also confused that if this is done by INT32 cores, what exactly are the RT cores bringing to the table then?
Also 3 times performance compared to DLSS enabled? Still going for hard sell on DLSS it seems.
I don't know if this is a response to Crytek or what, but this is a hilarious move. I am all for increasing feature sets, but seems this will simply confuse lines further, and I wonder if this will ever be real world functional on the 16xx cards. Shame the graphs do not include demonstration of 1660 Ti vs 2070 and 2080 for RTX workloads so we can see if any improvement over 1080Ti for that.
I am also confused that if this is done by INT32 cores, what exactly are the RT cores bringing to the table then?
Also 3 times performance compared to DLSS enabled? Still going for hard sell on DLSS it seems.
ScreamerRSA
Member
Posts: 44
Joined: 2015-06-05
Member
Posts: 44
Joined: 2015-06-05
#5651444 Posted on: 03/19/2019 09:39 AM
Always wanted to play games at 18fps!
Again the only point of this is to showcase how important and necessary it is to have dedicated hardware
Or we could change the resolution to 1080p and get the cinematic 24fps! \m/ \m/.
Yah its a marketing ploy. I'm still not buying your overpraised RTX gimmick cards nVidia
Always wanted to play games at 18fps!
Again the only point of this is to showcase how important and necessary it is to have dedicated hardware
Or we could change the resolution to 1080p and get the cinematic 24fps! \m/ \m/.
Yah its a marketing ploy. I'm still not buying your overpraised RTX gimmick cards nVidia
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Senior Member
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Joined: 2015-05-19
Its GTC, its not a consumer focused show. AI and Data Analytics are essentially the key focus points of GTC as a whole
Maybe there will be some consumer-focused news later this week from GDC, which is happening at the same time.