Yeah I just wish a better TDPAMD GPU usually doesnt live up to the hype, if you inted to grab a 3080, AMD wont have a similar stuff, but will have something with close performance and cheaper, but no 3080, also nothing 3090
It did. This video makes incorrect statements about RT h/w based off games with hybrid RT renderers performance - which never even were limited by RT h/w even on Turing.It seems that ampere RT core performance hasn't improved at all vs turing
Which is also false as the same video show several cases where in game RT is actually a lot faster than the average gain of Ampere over Turing cards.RT is faster because the gpu is faster, in the same proportion...
Nope.
Because the drop is attributed to shading complexity increases which are needed for RT - and it's completely unsurprising that games where RT was limited by shading in the first place are showing the same drops of performance on Ampere.the percentage drop in performance enabling RT is exactly the same as doing so with turing
RDNA2 has a sizeable challenge beating even Turing's RT tbh.this means RDNA2 has a lot less of a challenge on its hands matching nvidia RT performance than anyone would dare admit...
will cross post the link to this here, since its relevant to the discussion of whether rdna2 could be a match for ampere.
It seems that ampere RT core performance hasn't improved at all vs turing, RT is faster because the gpu is faster, in the same proportion.... so nvidia "2nd gen" RT cores are just.... 1st gen RT cores, with more memory bandwidth to play with, the percentage drop in performance enabling RT is exactly the same as doing so with turing in every single game tested. this means RDNA2 has a lot less of a challenge on its hands matching nvidia RT performance than anyone would dare admit...
will cross post the link to this here, since its relevant to the discussion of whether rdna2 could be a match for ampere.
It seems that ampere RT core performance hasn't improved at all vs turing, RT is faster because the gpu is faster, in the same proportion.... so nvidia "2nd gen" RT cores are just.... 1st gen RT cores, with more memory bandwidth to play with, the percentage drop in performance enabling RT is exactly the same as doing so with turing in every single game tested. this means RDNA2 has a lot less of a challenge on its hands matching nvidia RT performance than anyone would dare admit...
In terms of specifications, Navi 21 is Big Navi, which integrates up to 80 groups of CUs, which is 2560 stream processors, matching 256bit wide video memory, and is expected to be named RX 6900 series.
I don't know why we keep assuming all these numbers scale linearly?
Would be crazy if big navi actually outperforms ampere, at least on non RT numbers. I am happy with a card that can compete with a 3080
AMD must be hella confident if they're announcing a product 1 month after NVIDIA already released theirs.
How do you figure? To me it looks like they're going to compete with the 3070 and lower only since that's the one that comes in october.
Will def strongly consider AMD depending on their additional software solutions.AMD Navy Flounder to feature 40 CUs and 192-bit memory bus - VideoCardz.com
AMD Sienna Cichlid and Navy Flounder specifications AMD RDNA2-based graphics cards (Rumored Radeon RX 6700/6800 – left, Rumored RX 6900 series – right) The next-generation desktop graphics processors based on AMD RDNA2 architecture are expected to debut on October 28th. AMD did not confirm which...videocardz.com
spec leak, 80CU at 2.2ghz for the big one (22.5tflop) and 40CU at 2.5ghz (12.8 tflop) for the midrange, 32CU at unknown clockspeed for the lower end one. Assuming the same perf/flop as RDNA1, and assuming it scales out, you're looking at ~2.3x 5700XT performance, which is uh, yeah, faster than a 3080, also faster than a 3090, at 4k (2080Ti is 50% faster than a 5700XT at 4k, and only 34% faster at 1080p, on average. anything above 2x 5700XT performance will put amd ahead of nvidia here, 2.3x gives them a definitive lead), we'll soon see if that works in practice, but on paper, nvidia's got a real problem here
These leaks aren't a rumor, they were dug out of the latest ROCm release (version 3.8) so yep, we have official specs. ~250w for the 80CU part at 2.2ghz , 170w for the 40CU part at 2.5ghz, those are probably power for the gpu core only, so ~300W for the big boy and ~225w for the midrange is my best guess, which would uh, give them precisely 50% more perf/watt vs rdna1 as claimed as well. looks like they weren't making that up (unlike nvidia).
Reddit - Dive into anything
www.reddit.com
navi 21 (big one) can apparently use GDDR6 OR hbm2, so the flagship is probably hbm2 (else they wouldnt have bothered putting hbm memory controllers in it)
Uh... That's quite the exaggeration.they don't, but it can fall 20% short of linear and still match or beat nvidia's $1500 - 2000 flagship and their $700+ high end that's having major crashing issues due to faulty hardware atm, even if rdna2 doesn't see a perf/flop increase vs rdna1. And these numbers are straight out of files amd put on the internet themselves, so they're real. They also match up perfectly with amds previous perf/watt increase claims, so there's that. We'll soon see what improvements RDNA2 has over rdna1, as well as what amd decides to price these things at, but with the now known specs, they're at the very least right in nvidia's face in terms of raster performance, which is something loads of people said was impossible, and still continue to say. Its funny, loads of people on this forum and elsehwere still say big navi MIGHT be competitive with the 3070, which is supposedly 2080Ti perf, roughly... but that would mean that for a 300mhz clockspeed increase and a straight doubling of shaders, that big navi would only be 30 - 40% faster than a bloody 40CU rdna1 part.....its quite absurd when you really think about what people were saying with that. that would be an even bigger perf/flop regression than ampere saw, and we're not actually expecting a regression for amd here ;)
Why is AMD overclocking their gpus like crazy, they seem like they want to hit certain TF numbersAMD Navy Flounder to feature 40 CUs and 192-bit memory bus - VideoCardz.com
AMD Sienna Cichlid and Navy Flounder specifications AMD RDNA2-based graphics cards (Rumored Radeon RX 6700/6800 – left, Rumored RX 6900 series – right) The next-generation desktop graphics processors based on AMD RDNA2 architecture are expected to debut on October 28th. AMD did not confirm which...videocardz.com
spec leak, 80CU at 2.2ghz for the big one (22.5tflop) and 40CU at 2.5ghz (12.8 tflop) for the midrange, 32CU at unknown clockspeed for the lower end one. Assuming the same perf/flop as RDNA1, and assuming it scales out, you're looking at ~2.3x 5700XT performance, which is uh, yeah, faster than a 3080, also faster than a 3090, at 4k (2080Ti is 50% faster than a 5700XT at 4k, and only 34% faster at 1080p, on average. anything above 2x 5700XT performance will put amd ahead of nvidia here, 2.3x gives them a definitive lead), we'll soon see if that works in practice, but on paper, nvidia's got a real problem here
Why is AMD overclocking their gpus like crazy, they seem like they want to hit certain TF numbers
/s
Yeah, AMD has always known how to do hardware. Hence why I've always used them. But not seems like a good time to switch because AMD's software has never been great and NVIDIA is making some big claims with their stuff.Will def strongly consider AMD depending on their additional software solutions.
Issue is I have a gsync monitor that doesn't do freesync.
Same here. I actually have two G-Sync monitors. An Alienware AW341DW and an Acer Predator XB271HU. Going to make it hard enough for me to switch over unless AMD has some solution for that.Will def strongly consider AMD depending on their additional software solutions.
Issue is I have a gsync monitor that doesn't do freesync.
How do you figure? To me it looks like they're going to compete with the 3070 and lower only since that's the one that comes in october.
Lol no. Look to the numbers navi21 will be neck a neck with a 3080. Navi 22 will be really close of a 3070 but probably costing 100 less. If I need to guess big navi $599 and mid navi $399How do you figure? To me it looks like they're going to compete with the 3070 and lower only since that's the one that comes in october.
The other way around. One who's not confident will wait till competitor will play its cards before unveiling anything.AMD must be hella confident if they're announcing a product 1 month after NVIDIA already released theirs.
The possible reason for crashes and instabilities of the NVIDIA GeForce RTX 3080 and RTX 3090 | Investigative | igor´sLAB
Not only the editors and testers were surprised by sudden instabilities of the new GeForce RTX 3080 and RTX 3090, but also the first customers who were able to get board partner cards from the first…www.igorslab.de
is it really? seems to be a pretty widespread problem to me, certainly a big enough issue for major outlets to cover it and do deep dives to find out why... and oh yeah, capacitors that dont meet spec are the cause, aka FAULTY HARDWARE, good job!
The other way around. One who's not confident will wait till competitor will play its cards before unveiling anything.
Or you could just wait for more data and investigation into the issue to see what is real cause here?
There has been reports of crashing cards that supposedly have "safe capacitor designs" so that Igor's article that everyone is grabbing with two hands to hammer NV with isn't full answer to what is going on. It's real possibility still that it has nothing to do with capacitor designs, we need more data.
FWIW AMD has taken the performance crown from NVIDIA a few times...just not on the high-end and not for roughly a decade. That said, it's not so unbelievable that they got their act together given how much of an improvement the 5700XT was compared to the disastrous Radeon VII in gaming. Hoping this is one of those times where we get a price war between the two on the high-end as a result of said raw performance.Would be crazy if big navi actually outperforms ampere, at least on non RT numbers. I am happy with a card that can compete with a 3080
Lol no. Look to the numbers navi21 will be neck a neck with a 3080. Navi 22 will be really close of a 3070 but probably costing 100 less. If I need to guess big navi $599 and mid navi $399
that's me tooAlways wishing for a nice competitor card from AMD. One of these days they will hit that mark but we'll wait and see at the end of October.
Same here. I actually have two G-Sync monitors. An Alienware AW341DW and an Acer Predator XB271HU. Going to make it hard enough for me to switch over unless AMD has some solution for that.
The possible reason for crashes and instabilities of the NVIDIA GeForce RTX 3080 and RTX 3090 | Investigative | igor´sLAB
Not only the editors and testers were surprised by sudden instabilities of the new GeForce RTX 3080 and RTX 3090, but also the first customers who were able to get board partner cards from the first…www.igorslab.de
is it really? seems to be a pretty widespread problem to me, certainly a big enough issue for major outlets to cover it and do deep dives to find out why... and oh yeah, capacitors that dont meet spec are the cause, aka FAULTY HARDWARE, good job!
FWIW AMD has taken the performance crown from NVIDIA a few times...just not on the high-end and not for roughly a decade. That said, it's not so unbelievable that they got their act together given how much of an improvement the 5700XT was compared to the disastrous Radeon VII in gaming. Hoping this is one of those times where we get a price war between the two on the high-end as a result of said raw performance.
But how many flops? That's all I care about
These will be on ps5 pro and x series XX
AMD must be hella confident if they're announcing a product 1 month after NVIDIA already released theirs.
Pretty promising specs.
Amd announcing the event after 3080 public release either means
1) they cant compete so did not choose to by putting their event date after competitor product was out in the market.
Or
2) they are gonna put that 3080 gpu in their slides and show it getting crushed by their own.
Lets see