AMD Radeon RDNA2 Navi (RX 6500, 6600, 6700, 6800, 6900 XT)

CarstenS said:
FWIW, our reference card did boost to 2711 MHz on stock. But only for a very short time, normally we saw around 2550 MHz in games. *yikes*
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Needs beefier cooling for lower thermals yeah.
Most 6700XT also hang around ~2520 but with more pleasant fan profiles.

Oh btw what's the median perf % gain over 5700XT?
 
Bondrewd said:
Needs beefier cooling for lower thermals yeah.
Most 6700XT also hang around ~2520 but with more pleasant fan profiles.

Oh btw what's the median perf % gain over 5700XT?
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Don't have a median at hand. From a quick glance, I'd say around 25-ish %.
 
256bit LPDDR5? On 6400Mbps chips that's a wopping 204.8GB/s, on a 9W SoC! This is on the level of a PS4 Pro so it's well above the power level of a Xbox One (even more if they got Infinity Cache in it).

There's just no way this thing isn't / wasn't a gaming-focused SoC.

Maybe Panos Panay put this in limbo until they know exactly what the Switch successor is bringing to the table?
 
Woah, I did not know LPDDR5 was capable of these speeds. That would mean unified LPDDR5 memory is the ideal way to go on a SoC as it provides similar memory bandwidth to GDDR for the GPU and at low latencies crucial for the CPU.
 
ToTTenTranz said:
256bit LPDDR5?
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Yeah.
ToTTenTranz said:
There's just no way this thing isn't / wasn't a gaming-focused SoC.
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It's labeled "premium FF laptop" so idk lol.
ToTTenTranz said:
Maybe Panos Panay put this in limbo until they know exactly what the Switch successor is bringing to the table?
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No it missed some MS targets.
Dampf said:
That would mean unified LPDDR5 memory is the ideal way to go on a SoC as it provides similar memory bandwidth to GDDR for the GPU and at low latencies crucial for the CPU.
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LPDDR isn't particularly super-low-latency either way.
But yes it's good at that.
 
ToTTenTranz said:
256bit LPDDR5? On 6400Mbps chips that's a wopping 204.8GB/s, on a 9W SoC! This is on the level of a PS4 Pro so it's well above the power level of a Xbox One (even more if they got Infinity Cache in it).

There's just no way this thing isn't / wasn't a gaming-focused SoC.

Maybe Panos Panay put this in limbo until they know exactly what the Switch successor is bringing to the table?
Click to expand...

So comparable to an Xbox Series S then. Better if it has infinity cache. Impressive.
 
Dampf said:
Woah, I did not know LPDDR5 was capable of these speeds. That would mean unified LPDDR5 memory is the ideal way to go on a SoC as it provides similar memory bandwidth to GDDR for the GPU and at low latencies crucial for the CPU.
Click to expand...
LPDDR5 has similar performance to ~2015 GDDR5, but at a fraction of the power consumption in load and almost no power consumption in idle. Latencies AFAIK are worse than the cheaper DDR4, though the L3 cache size in the latest CPU architectures has been steadily growing, too.
Regardless, LPDDR evolution has truly been astounding this past handful of years.


Bondrewd said:
LPDDR isn't particularly super-low-latency either way.
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Sounds like a good match for Infinity Cache, then.
Though I know we shouldn't reallistically expect IF inside a 9W SoC. I also heard there's no raytracing in Van Gogh, sadly (or at least not enabled in the latest Linux driver commits).
 
Bondrewd said:
Needs beefier cooling for lower thermals yeah.
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Beefier cooling doesn't seem to do much for clocks.
6700 XT Strix has almost the same cooler as RTX 3080 & 3090 Strixes (same size, on quick check 6700 XT Strix weights 1.67 kg while 3080 Strix sits at 1.75 kg), but our sample didn't clock much higher than the rest - 2550 in games, while MSI was at 2535, Gigabyte 2520, PowerColor 2475 and reference 2430 (performance mode clocks for those which had more than one profile). It OC'd up to 2740 when OC slider was set to 2850. Also, it has the highest power budget of all 6700 XT's we've seen so far.
 
Kaotik said:
Beefier cooling doesn't seem to do much for clocks.
6700 XT Strix has almost the same cooler as RTX 3080 & 3090 Strixes (same size, on quick check 6700 XT Strix weights 1.67 kg while 3080 Strix sits at 1.75 kg), but our sample didn't clock much higher than the rest - 2550 in games, while MSI was at 2535, Gigabyte 2520, PowerColor 2475 and reference 2430 (performance mode clocks for those which had more than one profile). It OC'd up to 2740 when OC slider was set to 2850. Also, it has the highest power budget of all 6700 XT's we've seen so far.
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That's weird. TPU claims to have pushed their Asus Strix to 2840MHz.
 
ToTTenTranz said:
256bit LPDDR5? On 6400Mbps chips that's a wopping 204.8GB/s, on a 9W SoC! This is on the level of a PS4 Pro so it's well above the power level of a Xbox One (even more if they got Infinity Cache in it).

There's just no way this thing isn't / wasn't a gaming-focused SoC.

Maybe Panos Panay put this in limbo until they know exactly what the Switch successor is bringing to the table?
Click to expand...

I have heard there is an issue inside the samples that would take a to long to fix and put it to close to its successor and so it was passed over (esp with the limited fab capacity at hand)

I have been vocal about a Series S level hand held by MS featuring an updated zen architecture along with navi 3. Ms does not want to have an issue where the handheld is to far behind the consoles. It will cause even more dev split. That is why the S is the target. They will get there with a bit of raw power and enhanced design.

RDNA 3 will give a big boost to ray tracing and for traditionally rendering they are looking at another 20-30% performance uplift.

I'd put forth a 1440p 8inch screen with a 4ish Tflop gpu with 64-96megs of IC and 10 gigs of ddr 5 ram on 5nm .

The other bit of sauce would be a second gen ssd cart. Yes it will come with 512-1tb (depending on cost of course at the time) but it will use a new generation of ssd cart. Except a smaller cart size vs what is in the Series systems. However it will still work on the series system as it will be the same speed but will step down converter for size and or a external attachment that will allow for multiple carts to be used.

If MS does launch this the biggest things that they are waiting on are DDR5 and 3/5nm 2023 would be the target date. If they go through with it is anyones guess.
 
ToTTenTranz said:
That's weird. TPU claims to have pushed their Asus Strix to 2840MHz.
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There's obviously variaton card to card, but point was that even with extra beefy cooler (which also shows in temps) the card isn't running away from the competition and instead runs around same clockspeeds as the rest, just at lower temps.
In TPU's tests it was in the middle of the pack on average MHz:
PowerColor Red Devil 2486 MHz
AMD Reference 2491 MHz
MSI Gaming XT 2539 MHz
Asus Strix OC 2549 MHz
Sapphire Nitro 2553 MHz
XFX Merc 2558 MHz

It's temps were however in the league of their own, even their silent bios being cooler than the competition (a bit louder too, though)
upload_2021-3-17_21-36-14.png
 
In a disappointing blow to all the 78 people on the planet who own a RDNA2 card to actually play games, AMD's Scott Herkelman told PC World that FidelityFX Super Resolution (officially now called FSR) is still going to take some time to arrive but "they're confident they can bring it this year", which makes the old pessimist me assume it's coming late December 2021 or January 2022.
He also said it may not even use machine learning at all.


Scott Herkelman said:
It’s progressing very well internally in our lab, but it’s our commitment to the gaming community that it needs to be open that it needs to work across all things and game developers need to adopt it. Even though it’s progressing well, we still have more work to do and not only internally but with our game developer partners. We want to launch it this year. We believe we can do that this year, but at the same time we a lot more work ahead of us. We need to make sure the image quality is there. We need to make sure it can scale from different resolutions. And at the same time that our game developers are happy with what we are producing.

(...)

It’s probably one of the biggest software initiatives we have internally because we know how important it is if you want to turn on ray tracing that you don’t just wanna have that competitive hit or your GPU get hit so hard. The FSR (that will be called the acronym), is something key to us to launch this year, but it’s gonna be a little bit more time. We are progressing well, but we still have some work to do.

(...)

You don’t need machine learning to do it, you can do this many different ways and we are evaluating many different ways. What matters the most to us is what game developers want to use because if at the end of the day it is just for us, we force people to do it, it is not a good outcome. We would rather say: gaming community, which one of these techniques would you rather see us implement so that this way it can be immediately spread across the industry and hopefully cross-platform.
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In other news, the RX 6700 XT has sold out in minutes again. This time, at least i was able to put it in my cart at AMDs shop, but the checkout process timed out and when it worked lateron, the stock was already gone.

It was a nice, cozy feeling for a minute to almost get a new graphics card. Next stop maybe Nvidia.
 
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