AMD Radeon RX 6800 XT

[RainingTacco]

AMD always had higher API overhead for CPU, nothing new. It isn't a problem in DX12 titles though.

 

[Jinxed]

A simple way to disprove completely what you claim is to look at the SoCs used in consoles, the last level cache that you desperately try to prove AMD added to make RT viable is no where to be found on those, which means that clearly wasn't it's purpose. Your speculation is plain and simple wrong.

You must be out of your mind to believe for a second that AMD just dedicated 1/5 of the die to improve RT performance which ended up being inferior to Nvidia's anyway. There are other flaws with their implementation that need to be addressed long before bandwidth became an issue.

Also because of the way BVH works some pointer chasing is required meaning caches don't help much.

No, that cache is an inevitable evolution of GPUs given that the ratio of DRAM bandwidth per thread has plummeted over the years and it's obvious that there will be a point in time after which no more performance can be extracted. It's there to aid all around performance and I bet Nvidia will be forced to implement something similar as well. Anyway, the point is that it has nothing to do with RT.

Oh really? Microsoft clearly stated that Xbox Series X has all the RDNA2 features, unlike PS5. The fact that they did not mention details like Infinity Cache and others does not mean they are not there. Some of the features AMD obviously intended to keep for their RX6000 presentation. And even if there was no Infinity Cache, how do you know it was not harmful to raytracing performance, since we do not have raytracing performance results for consoles? Given that there's pretty much no raytracing titles revealed for consoles, I'd assume it is going to perform terribly

 

[Foobario]

The same argument was appearing ever since first AMD-powered consoles appeared, for what - close to a decade now? And it never happened.

Do you think the fact that the prior gen consoles were using a three year old (now ten year old) AMD architecture designed for mobile apps might have held back the synergies?

Now PC is running Zen plus RDNA2 just like the consoles do. We should see how things work out over the next couple of years.

 

[Steevo]

Then why do it for Assasin's Creed Valhalla? Do you think more people are playing that then Minecraft?

I think there are more people playing it than care to play a raytraced version of minecraft..... Thus my comment that 90%+ of users don't care about that specific scenario, instead they want to know how it handles 1080 or 4K popular games and of those a decent number of people with this hardware will care about how infinity cache handles texture upgrade packs for games like Skyrim, GTA, RDR2, and Valhalla.

It is good ot know that if I wanted to have raytracing in my minecraft that a green card would be the way to go, but I don't think most will care, or if they are that tech savvy perhaps they will figure out a way to decrease the number of rays calculated in a brick world.

 

[Jinxed]

it's 4 Box or 1 Triangle Intersection per cycle

How does that contradict my statement? it simply means the "ray ops" are either 4 box intersections or 1 triangle intersection. It does not change the fact that RDNA2 cannot to both texture and raytracing ops on the same CU in the same cycle.

 

[Lindatje]

@Jinxed
And you post a heavy NVIDIA sponsored title .....

 

[Vya Domus]

Oh really? Microsoft clearly stated that Xbox Series X has all the RDNA2 features, unlike PS5. The fact that they did not mention details like Infinity Cache and others does not mean they are not there. Some of the features AMD obviously intended to keep for their RX6000 presentation. And even if there was no Infinity Cache, how do you know it was not harmful to raytracing performance, since we do not have raytracing performance results for consoles? Given that there's pretty much no raytracing titles revealed for consoles, I'd assume it is going to perform terribly

That cache is not an RDNA2 "feature" it's just a cache.

You should get into the habit of reading upon the available information before you come up with these bewildering speculations.

Here, die shot of the SoC inside the new Xbox, from those very same slides :

Where's that last level cache that Navi 21 has ? Just point to it.

 

[TheLostSwede]

Techspot is part of HardwareUnboxed (or the other way around). Of course AMD fanboys would try to post results from the biggest AMD fanboy site on the internet if all the other results do not match their expectations. I for one come to techpowerup to get some decent reviews, not to sites like techspot, where the reviewer gets blood in their eyes just from mentioning Nvidia.

You actually seem to mostly come here to argue with people from what I see.

Also, it's more than, not more then.

 

[Jinxed]

Do you think the fact that the prior gen consoles were using a three year old (now ten year old) AMD architecture designed for mobile apps might have held back the synergies?

Now PC is running Zen plus RDNA2 just like the consoles do. We should see how things work out over the next couple of years.

And before that it was GCN and Jaguar cores. Same story a few years forward. Nothing really changed.

 

[z1n0x]

Some are abit too emotional, like they have something at stake.
I'm not even sure what are you arguing about anymore, fact of the matter is both gpu vendors will sell anything they made for months beause demand outstrips supply.

 

[turbogear]

Thanks for the review TPU.
Interesting card that I would like to buy.

Unfortunately,the supplies were almost non existing.
In Germany they were gone in 10minutes.
I placed order 2 minutes after launch at 15:02 o'clock and then called Mindfactory to check if I will get one.
They told me unfortunately not.
While I was paying with PayPal cards were gone.

The guy on phone told me that they had very low quantities and he said he does not expect to get more very soon. So he said most probably deliver will be at least one month later.
He said it is similar situation to RTX 3080.
So I asked him to cancel my order and I will wait until some time in future when enough cards will be available.

Checked on number of online store. It was gone in few minutes everywhere.

 

[Jinxed]

That cache is not an RDNA2 "feature" it's just a cache.

You should get into the habit of reading upon the available information before you come up with these bewildering speculations.

Here, die shot of the SoC inside the new Xbox, from those very same slides :

View attachment 176158

Where's that last level cache that Navi 21 has ? Just point to it.

It's a SOC chip schema. It does not detail the features of the GPU in the picture. Rather the parts of the whole SOC. You can see the CPU cores, you can see the memory controllers, IO, interconnects. You are trying to interchange the fact that the picture does not show the GPU intrnal parts for your assumption that there are no actual GPU internal parts. Nice try, honestly, but no.

 

[Mastakony]

If you only play the 10 games with RTX (10 good games if possible) OR ONLY PLAY 4K, you can grab a 3080 (if you also have DLSS LOL)
But seriously, it's a complete WIN for 95% of games and majority of resolutions (1080 1440)!!!!
Better perf
Less noise
Less power
Cheaper
AND A REAL OC available!!!!

CONGRATS AMD

PS : If you already have a ryzen 3000............., you know the deal

 

[TheoneandonlyMrK]

And before that it was GCN and Jaguar cores. Same story a few years forward. Nothing really changed.

Except what you are saying is rubbish ,the fact the old consoles had 8 weak cores kept my fx8350 in the game instead of below minimum specs.
And Polaris Still plays ANY game as does Tahiti at playable 1080p levels.
I had Polaris for age's.
And you can do work on the shader array while that ray accelerator does work, that can include work for ray's, since the CPU could have access to GPU memory it's possible it could also put work in to assist, God knows how/if that could work out.

 

[Fouquin]

Steam Catalog size 23000+

Oh no, the tens of thousands of anime/furry adult visual novels puked up in RPG maker aren't optimized for AMD! What ever will they do?! They've only got the AAA release games built for them, how terrible!

 

[ratirt]

@W1zzard Awesome review Thanks .

I find this so damn unbelievable. People look at the same graphs, same results and have totally different opinions about the RX6000 series. How is that possible that you have awesome vs total crap. That's even more amazing the the rx6000 series cards themselves and these are really good. If you'd think, what AMD has done over one year from 5000 series GPUs release. One year and you have this.
I can't wait for the next year when RDNA3 will be released or teased or whatever. If AMD keeps up with that attitude we are in for a treat.
RT lacks a bit that's for sure. I think we need to give it more time to get there. NV has had 2 years to get it done. Lets see how much AMD will need to get where NV is now.

BTW. I've watched reviews on YT from different reviewers and the scores for the 6000 series vary quite a bit across all resolutions even with the same games tested. That's a bit weird.

 

[turbogear]

Just for fun I was checking on eBay, there were a few people who were selling A4 size photos of 6800xt cards.
There were enough idiots who actually fell for those and were betting on these without reading title fully which say only Photo.

There were some bets standing between 500€ and 600€.
These guys will have lot of fun when they receive photo of 6800XT in their post. Just incredible what people do without reading.

 

[Vya Domus]

It's a SOC chip schema.

Stop denying reality, it's an actual die representation, not a schema.

last level caches are very obvious and stand out as they usually sit somewhere around or inside a cluster and are symmetrical and very large.

Like it's highlighted in this render :

If it was there you'd see from a mile, accept factual data and stop trolling. And Microsoft would have talked about it in their presentation, this idea that they were somehow hiding it is complete fiction and a ridiculous idea. They described it down to the smallest details about the RT implementation which was arguably much more important but they'd leave this out ? Yeah, right.

 

[Charcharo]

10 GB does affect DOOM Eternal performance a bit, but in 8K. In 4K 8 GB is more than sufficient for upcoming years.

Обзор видеокарт NVIDIA GeForce RTX 3080/3090 Founders Edition и тесты на 8К-экране

Обзоры видеокарт NVIDIA 30-й серии, которые мы опубликовали в прошлом месяце, отклонились от привычной схемы.

3dnews.ru

I literally have 8 GB cards and this game. Your source is wrong or incompetent. 8GB does indeed have issues in the game at 4K.

More VRAM is always more expensive. Specially for NVIDIA which uses exclusive to it GDDR6X.

FTFY.

And these two games are outliers and I presume could have been fixed if they had been released recently. Lastly good luck finding any visual differences between Uber and Ultra textures on your 4K monitor.

DOOM Eternal was released this year and is the most optimized game ever made, or so it seems. Wolfenstein 2 was praised for its optimization too.

Nothing to fix. They just need more VRAM.

 

[Jinxed]

You actually seem to mostly come here to argue with people from what I see.

Also, it's more than, not more then.

Well if you call debunking arguments like "most games are made for consoles" with actual numbers as arguing, then there's really no way to react to that. And for the record I do beleive Big Navi is a decent achievement. But unlike some other people here, I do not lose sight of the fact that a big part of that comes simply from the process advantage AMD has and there are a lot of misses - lack of reasonable raytracing performance, lack of anything similar to DLSS, lack of any hardware that would support DLSS, meaning that current RX6000 series cards will not get anything producing similar quality as DLSS (maybe RDNA3 will) and so on ..

 

[birdie]

DOOM Eternal was released this year and is the most optimized game ever made, or so it seems. Wolfenstein 2 was praised for its optimization too.

Nothing to fix. They just need more VRAM.

Please educate yourself about game development a tiny bit. It's perfectly possible to make both games require a lot less VRAM - it's just their developers went overboard when they had access to the 2080 Ti.

 

[RainingTacco]

Anyone who is playing at 8k dont give a damn about some minutae price difference between gpus. He/she just buy the best of the best ie. RTX 3090 SLI right now.

 

[MikeGR7]

Their inability to catch up? I wish I could see the world through your special eyes. At stock its about 2-3% slower than a card $50 more, and it uses 100W less, has 10% overclocking ability out of the box compares to 3% from team green, and with other tweaks it ends up as fast or slightly faster, plus much better frame times. But I guess you can't see that, cognitive dissonance is real .

No one is forcing anyone to buy it, and everything is worth what someone is willing to pay. Do you think AMD gets all the money from the sale of these cards? If you do perhaps try reading up on supply and demand economics.

Well with all due respect, it is you who seem to have the "special" eyes because the numbers you mention are "modified" towards AMDs favor.

It's mostly 5% difference and the power consumption difference is closer to 50 watts.

Also the "other tweaks" part is a lot better for the Green team nowadays... bios flashing on 3000 series is easy as pie and brings great performance jumps with it especially combined with watercooling.

Not to mention the software side of things with dlss, raytracing etc

If you think 5% is insignificant, go tell that to high end nvme drives lol

 

[Charcharo]

Yeah no doubt, you can always make games run bad by changing settings or replacing textures. These cases are very very edge case, maybe 1000 gamers out of 100 million? (making up random numbers).

More = good, but more = $, so more != good

The problem with being part of the actual PCMR Elite is that ... well most other people are quite a bit under that level. It is what it is. But we exist and are loud. You have tests with games no one plays, which is fair. It isnt your place to argue against the games at all, the logic is sound. This is a similar situation except I am 100% certain there are more modders than Shadow of the Tomb Raider gamers. A minority, but still bigger than that minority.

I strongly hold - your comment there is wrong. And we even see the 1060 3GB lose at 1080p hard at times due to its VRAM buffer.

 

[Colddecked]

Have you used DLSS? I have owned a 2080 Ti since launch and having experienced it first hand, can say that I am very thankful for the option. If you care to see for yourself, here is one of many videos on the subject:

I don't think anyone says anything bad about the actual implementation of DLSS, which is why it makes alot of sense for AMD/MS to develop their own DLSSish option. Just that it takes some work by devs to implement, so its not a feature you can count on yet especially if you competitive multiplayer type games.