[Hexus] AMD Radeon RX 3080 XT will rival Nvidia RTX 2070 - Page 19 - Overclock.net - An Overclocking Community

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[Hexus] AMD Radeon RX 3080 XT will rival Nvidia RTX 2070

 
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post #181 of 281 (permalink) Old 05-18-2019, 08:55 AM
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I can tell everyone this on the bandwidth argument. My Vega 64 gained noticeably more fps with HBM oc'ing than core oc'ing at 3200x1800 and 4k. Going from 945mhz to even 1000mhz netted me 2-3fps at 1800p easy. At 1050mhz 4-5fps showed on average. Atleast in BFV. And that's with the core already being put at 1630mhz.


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post #182 of 281 (permalink) Old 05-18-2019, 09:22 AM
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Quote: Originally Posted by SoloCamo View Post
I can tell everyone this on the bandwidth argument. My Vega 64 gained noticeably more fps with HBM oc'ing than core oc'ing at 3200x1800 and 4k. Going from 945mhz to even 1000mhz netted me 2-3fps at 1800p easy. At 1050mhz 4-5fps showed on average. Atleast in BFV. And that's with the core already being put at 1630mhz.
For sure. Look at Fury X. It had more BW than Vega 64 with a much slower core.

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post #183 of 281 (permalink) Old 05-19-2019, 01:47 AM
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I hate the idea of making such a weak upgrade as going from Vega 64 to R3090XT, but I’m going to need HDMI 2.1, and as long as Nvidia has abandoned the high end Rasterization market there’s no way I’m buying another green GPU.
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post #184 of 281 (permalink) Old 05-19-2019, 04:17 AM
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Quote: Originally Posted by ILoveHighDPI View Post
I hate the idea of making such a weak upgrade as going from Vega 64 to R3090XT, but I’m going to need HDMI 2.1, and as long as Nvidia has abandoned the high end Rasterization market there’s no way I’m buying another green GPU.
I thought the VII has a lower rasterization than the 2080.
source.
Are you sure in what you are claiming? Maybe you mean something else?
Nvidia inhibit those cards on other areas in order to not compete with their quadro line.



Last edited by Defoler; 05-19-2019 at 04:27 AM.
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post #185 of 281 (permalink) Old 05-19-2019, 06:08 AM
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Quote: Originally Posted by ILoveHighDPI View Post
I hate the idea of making such a weak upgrade as going from Vega 64 to R3090XT, but I’m going to need HDMI 2.1, and as long as Nvidia has abandoned the high end Rasterization market there’s no way I’m buying another green GPU.
Should hopefully be a big upgrade. We can expect 2080 Ti perf minimum since it will come almost 2 years after 2080 Ti in 2020.

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post #186 of 281 (permalink) Old 05-19-2019, 06:55 AM
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Quote: Originally Posted by ILoveHighDPI View Post
I hate the idea of making such a weak upgrade as going from Vega 64 to R3090XT, but I’m going to need HDMI 2.1, and as long as Nvidia has abandoned the high end Rasterization market there’s no way I’m buying another green GPU.
Just because Nvidia does ray tracing does not mean they dont rasterize. Nvidia uses a hybrid approach where RT is used for various lighting effects and thats it. They must continue to use rasterization for quite some time as going pure ray trace would be drastically slower than the slow hybrid POS they have now.

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post #187 of 281 (permalink) Old 05-19-2019, 10:52 AM
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Quote: Originally Posted by EniGma1987 View Post
and that doesn't having turing; which the quote i posted does.

btw, it was no secret nvidia used software (driver) in pascal for a-sync compute, however w/turing nvidia took a page from AMD and used HW based compute.

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post #188 of 281 (permalink) Old 05-19-2019, 11:29 AM
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Quote: Originally Posted by ZealotKi11er View Post
Should hopefully be a big upgrade. We can expect 2080 Ti perf minimum since it will come almost 2 years after 2080 Ti in 2020.
Coming after 2 years doesn't mean faster.
Considering GCN and aiming at low price mid range, I expect VII will still be their top card until at least next year.


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post #189 of 281 (permalink) Old 05-19-2019, 12:23 PM
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Turing has concurrent int+float, the async compute was improved. async compute was the main reason to buy AMD cards besides FP64 (which AMD cards no longer have enough of over Nvidia gaming counterparts except on Radeon VII) and saving money on monitors with Freesync.
https://devblogs.nvidia.com/nvidia-t...ture-in-depth/
https://www.nvidia.com/content/dam/e...Whitepaper.pdf
"Turing introduces a new processor architecture, the Turing SM, that delivers a dramatic boost in shading efficiency, achieving 50% improvement in delivered performance per CUDA Core compared to the Pascal generation. These improvements are enabled by two key architectural changes. First, the Turing SM adds a new independent integer datapath that can execute instructions concurrently with the floating-point math datapath. In previous generations, executing these instructions would have blocked floating-point instructions from issuing. Second, the SM memory path has been redesigned to unify shared memory, texture caching, and memory load caching into one unit."

---

The Nvidia driver has been much more multi-threaded in DX11 due to context switching and commandlists. It's partly to blame for the poorer DX11 performance of AMD GPUs given the shader core count and raw compute.
https://software.intel.com/en-us/art...aded-rendering
https://benchmarks.ul.com/news/a-clo...dmark-time-spy

With OpenGL (which is also largely single-threaded):
Vega 56 performs on par with RTX 2070 in Unigine Heaven
Vega 64 performs on par with GTX 1080 ti in Superposition

https://www.phoronix.com/scan.php?pa...ii-linux&num=7

► Recommended GPU Projects: [email protected] , [email protected] (FP64) (AMD moreso) ► Other notable GPU projects: [email protected] (Nvidia), GPUGrid (Nvidia) ► Project list



Last edited by AlphaC; 05-19-2019 at 02:22 PM.
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post #190 of 281 (permalink) Old 05-21-2019, 01:44 AM
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Quote:
While speaking to the Chinese press, Sapphire PR manager revealed that AMD is working on two Navi SKUs: a 399 USD variant to compete against GeForce RTX 2060 and 499 USD model as an alternative to RTX 2070.

The interview also shed some light on the new Navi architecture. According to the same manager, it will not support ray-tracing on a hardware level. This might be an important factor when comparing GeForce and Radeon cards at the same price point.

Interestingly, it was also suggested that the launch date for Navi could indeed be July 7th, while the first demonstration of new products is expected on May 27th during Dr. Lisa Su’s keynote at Computex.
https://videocardz.com/80720/sapphir...uly-7th-launch
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