Question Speculation: RDNA3 + CDNA2 Architectures Thread

[uzzi38]

Man I have been dying to make this one for a while now.

First rumours for RDNA3 are here so new thread time!

Just going to start off with this one for now: kopite7kimi on Twitter: "@VideoCardz Ah, I mean a simple mcm design with 10240 cores is not enough. Because the lift from RDNA2 to RDNA3 is much bigger than from RDNA1 to RDNA2. We should expect many big improvements in GFX11. 🤔" / Twitter

 

[jpiniero]

Competitor has 12 Gb as well, also for upgrade I consider people who have a 6600XT class or lower, not a 6750XT or higher. At the right price it can be interesting.

It's probally $549 and $449.

 

[Heartbreaker]

It seems the 7700XT will be a somewhat interesting upgrade

AMD announces Radeon RX 7800 XT 16GB and RX 7700 XT 12GB graphics cards - VideoCardz.com

AMD Radeon RX 7800 XT & RX 7700 XT revealed, designed for 1440p gaming At Gamescom AMD announces its mid-range RX 7000 GPUs. AMD has unveiled two highly anticipated graphics cards: the RX 7800 XT and RX 7700 XT, filling a crucial gap in AMD’s RDNA3 desktop lineup. Although we had some...

videocardz.com

Power though is up.

7700XT is definitely the more interesting one to me.

7800XT looks to be nearly identical performance to the 6800XT.

So in year where everyone bitterly complained about NVidia's lack of performance upgrades, AMD says, "Hold my beer" and aims for a 2% performance upgrade.

 

[linkgoron]

7700XT is definitely the more interesting one to me.

7800XT looks to be nearly identical performance to the 6800XT.

So in year where everyone bitterly complained about NVidia's lack of performance upgrades, AMD says, "Hold my beer" and aims for a 2% performance upgrade.

RDNA3 is just a bad architecture. I'm not sure what went wrong, but it's clear that it's bad. Nvidia, on the other hand, has a solid arch but has increased prices yet again.

I agree, however, that the 7700XT looks very interesting.

 

[insertcarehere]

7700XT has only 12GB Vram, so not that interesting.
Both of them have very high TBP, actually 7900GRE has only 260W, so better than 7800XT.

I will wait for reviews and price, but this doesn't look great.

Looking at clocks 7800XT somehow manages to clock lower than even the 7900XTX... That cannot be what AMD had in mind with the GCDs on N5...

 

[Tup3x]

Looking at clocks 7800XT somehow manages to clock lower than even the 7900XTX... That cannot be what AMD had in mind with the GCDs on N5...

Neither the TBP...

 

[Timorous]

RDNA3 is just a bad architecture. I'm not sure what went wrong, but it's clear that it's bad. Nvidia, on the other hand, has a solid arch but has increased prices yet again.

I agree, however, that the 7700XT looks very interesting.

Not sure what the cause was but it seems quite clear AMD were expecting RDNA 3 to clock a lot higher than it does at a given power level. Performance scales pretty well with clock speed it just takes gobs of power to get it there.

If it could clock 20% faster at the same TDP then you would have a totally different situation on your hands.

7700XT is definitely the more interesting one to me.

7800XT looks to be nearly identical performance to the 6800XT.

So in year where everyone bitterly complained about NVidia's lack of performance upgrades, AMD says, "Hold my beer" and aims for a 2% performance upgrade.

7800XT looks a bit rubbish compared to 6800XT. Same performance give or take but slightly better power consumption. Not good from that perspective but compared to a 12GB 4070 if priced right it performs similar, has more VRAM and will hold up better at 4K so may not be a total disaster. Looking at a few games it looks like the swing could go from as fast as the 4070Ti / 6950XT to slower than the 6800XT depending on the title. Something like FH 5 that seems to really hate RDNA 3 will probably be quite a large regression where as something like TLOU or CP2077 is looking like a decent uplift.

7700XT though looks good. 54CU is more than I was expecting at the 2.5Ghz clock rate means it will probably perform like a 6800 with a bit less VRAM, could perform pretty close to the 4070 in pure raster for quite a lot less. Taking those same games it looks like it will be between 6800 and 4070 performance. Some titles it should match the 4070 and in others it is a bit behind but is about equal to the 6800. If this is $450 to split the 4060Ti variants and it can on occasion match the 4070 then it really does look like a good deal.

Obviously since AMD lied about the 7900XTX and XT performance I don't really trust the numbers they have provided and if the fudge factor is similar then the 7800XT could be a real disaster with performance that barely keeps up with the 6800XT. Even in that scenario the 7700XT will outdo the 6700XT and may fall more in line with the 3070 / 3070Ti.

 

[igor_kavinski]

Neither the TBP...

Probably using the leakiest chiplet dies. On the other hand, if the overclocking/undervolting is good, that could improve the value proposition.

 

[igor_kavinski]

7800XT looks a bit rubbish compared to 6800XT.

Disagree. If someone has the 6800XT now, sure it doesn't make much sense to upgrade but anyone looking for a new card should go for the 7800 XT to avail a longer useful product life, improved RT and significantly better AI performance.

 

[Heartbreaker]

7800XT looks a bit rubbish compared to 6800XT. Same performance give or take but slightly better power consumption. Not good from that perspective but compared to a 12GB 4070 if priced right it performs similar, has more VRAM and will hold up better at 4K so may not be a total disaster.

The problem is, that 6800XT has already occupied that exact position, and made no dent in 4070 sales, selling for close to $500 USD. Most are betting AMD will price this higher than that, so it will actually be less competitive with the 4070, than the 6800 XT has been.

7700XT though looks good. 54CU is more than I was expecting at the 2.5Ghz clock rate means it will probably perform like a 6800 with a bit less VRAM, could perform pretty close to the 4070 in pure raster for quite a lot less. Taking those same games it looks like it will be between 6800 and 4070 performance. Some titles it should match the 4070 and in others it is a bit behind but is about equal to the 6800. If this is $450 to split the 4060Ti variants and it can on occasion match the 4070 then it really does look like a good deal.

Agreed. This looks like the sweet spot. It will probably be $100 less than 7800XT while being very close in performance, making for better perf/$, and will stomp performance of the previous generation 6700XT.

6700XT was the best selling AMD 6000 series, making 7700XT a very important card, so it's good this one seems to be done right.

 

[Heartbreaker]

Now the "big" news. FSR3 (AKA NVidia style fake frame generation) is here:

AMD FidelityFX Super Resolution 3 (FSR3) is launching this fall - VideoCardz.com

AMD FSR3 will work with Radeon RX 5700, GeForce RTX 20 GPUs, launching this fall The long-overdue update for FSR3 is finally here. AMD officially announces support for its latest upscaling technology in several titles. The new version of FidelityFX Super Resolution (FSR), known as FSR3...

videocardz.com

AMD officially announces support for its latest upscaling technology in two games. The new version of FidelityFX Super Resolution (FSR), known as FSR3, introduces a feature called “Fluid Motion Frames,” which can be compared to AMD’s equivalent of DLSS3 Frame Generation. While this technology was initially unveiled in January of this year, AMD has taken longer than anticipated to reveal further details.

Now AMD can also do super misleading marketing:

 

[igor_kavinski]

Something like FH 5 that seems to really hate RDNA 3 will probably be quite a large regression

AMD Radeon RX 7900 XT Re-Review

Let's pretend for a minute it's 2022 again, and the Radeon RX 7900 XT is just getting released. But in this scenario, the GPU is introduced with...

www.techspot.com

It might not be that bad with the newer drivers.

 

[igor_kavinski]

If they can manage the perf uplift without animation glitches and artifacts, it could be an important selling point.

 

[Timorous]

AMD Radeon RX 7900 XT Re-Review

Let's pretend for a minute it's 2022 again, and the Radeon RX 7900 XT is just getting released. But in this scenario, the GPU is introduced with...

www.techspot.com

It might not be that bad with the newer drivers.

View attachment 84854

Just beating the 6950XT when the 7900XT has higher clocks and more CUs is not going to be enough for the 7800XT to keep up with the 6800XT. I expect it will be closer to the 6800 in this title unless there is another driver improvement to step things forward again.

 

[Heartbreaker]

Just beating the 6950XT when the 7900XT has higher clocks and more CUs is not going to be enough for the 7800XT to keep up with the 6800XT. I expect it will be closer to the 6800 in this title unless there is another driver improvement to step things forward again.

This close to release AMD won't be lying about performance. They say 3.5% lead over 4070, which means it's about equal to 6800 XT (essentially all three trade blows and are about the same performance).

 

[igor_kavinski]

$479 or $499 for the 7700 XT. Worst case, $529. Delusion among their ranks if they price it any higher.

 

[KompuKare]

7700XT has only 12GB Vram, so not that interesting.
Both of them have very high TBP, actually 7900GRE has only 260W, so better than 7800XT.

I will wait for reviews and price, but this doesn't look great.

Perf/watts seems rather poor. The lower boost of the 7800 XT might mean that overclocking could be a thing. I'll keep an eye on power spikes as those might make the 7800 XT worse than the 6800 XT.

RDNA3 is just a bad architecture. I'm not sure what went wrong, but it's clear that it's bad. Nvidia, on the other hand, has a solid arch but has increased prices yet again.

I agree, however, that the 7700XT looks very interesting.

Really hard to see where all the transistor budget has gone. At least with Navi31, will have to wait to see the full die sizes and transistor estimates of Navi 32. Maybe with RDNA3 AMD were trying to see if they could "improve" on Intel's disastrous perf/transistor with ARC?

Probably using the leakiest chiplet dies. On the other hand, if the overclocking/undervolting is good, that could improve the value proposition.

Unless they are expecting a big (for AMD at least) push of Navi32 into laptops, I don't see where highly binned parts would go to. They took their time getting Navi32 out so in theory they should have had some time to bin parts. Using leaky dies for no reason just invites poor launch reviews (although AMD do seem to love those).

 

[Ajay]

7700XT has only 12GB Vram, so not that interesting.
Both of them have very high TBP, actually 7900GRE has only 260W, so better than 7800XT.

I will wait for reviews and price, but this doesn't look great.

Yeah, really was hoping the boost clocks would be higher with the smaller die. Bleh.

 

[coercitiv]

Some lazy screen grabs.

 

[coercitiv]

7800XT $500
7700XT $450

 

[coercitiv]

FSR3 support for all graphics cards, so fake frame for everyone! /s

And they'll inject frame interpolation in all DX11 games... oh well.

 

[Hitman928]

7800XT $500
7700XT $450

View attachment 84862

Prices seem. . . . actually pretty good, in today's market at least.

 

[KompuKare]

FSR3 support for all graphics cards, so fake frame for everyone! /s

And they'll inject frame interpolation in all DX11 games... oh well.

I think the monitor manufacturers are missing a trick.
Why not have the OSD report twice or three times the actual refresh rate?
Seems buyers love that kind of thing (well except when consoles and TVs were doing that, of course!)

 

[coercitiv]

Prices seem. . . . actually pretty good, in today's market at least.

The price for 7800XT is better than most of us feared, the 7700XT is a mixed bag but we need to see what the card is capable of. There will clearly be a cheaper 7700 though, there has to be.

 

[Heartbreaker]

7800XT $500
7700XT $450

View attachment 84862

Decent price for the 7800 XT. Makes it's a very solid competitor to the 4070. Though, at only $50 cheaper, the 7700XT is less interesting.

 

[Hitman928]

FSR3 support for all graphics cards, so fake frame for everyone! /s

And they'll inject frame interpolation in all DX11 games... oh well.

Now NV and AMD can market against each other about who can make the most fake frames.

https://media.tenor.com/65jRkhUA2MIAAAAd/yaaay-saturday-night-live.gif

As long as it's not a forced on option, then, whatever, lol.