gooner4life_uk
Member
You're right, PSSR will improve performance and image quality, because it means devs can use a lower resolution to increase frame rates but not give up IQ because of PSSR.
But using PSSR, if they decide to run the game at a lower resolution and then use PSSR to upscale it, wouldn't that extra headroom allow higher frame rates?
What sram and coherency hardware in the SoC?
Are you talking about the SSD controller and it's cache?
I beg to differ. I've been playing on PC since 1999 and to me there's been a steady decline in the PC gaming experience - for many various reasons you probably know or understand.
Consoles are far from perfect but at least they are fluid and deliver the goods without too much hassle. Aka, gaming.
I google'd "WNBA PSSR PS5 PRO" in confusion and I hope you're happy with the homework assignment you've been assigningPSSR almost certainly uses WMMA instructions.
I was saying this from day one, yet people are going 4070... 4070S... 4080 next week?
Yes, framerate or graphics but the problem is many games are already in low resolutions even for PSSR/DLSS to handle things for 4k screen. Just some quick comparisons without RT into play:
1. Game runs 1440p on PS5 in 60FPS, devs can leave that 1440p for Quality PSSR and have 45% more power left for better framerate or graphics quality (or both) OR they can drop to 1080p and have more than 100% performance increase in total. This is ideal scenario.
2. Game runs 1080p on PS5 in 60FPS, devs can realistically only switch from FSR to PSSR so they have 45% more performance left. This will be the most typical scenario based on resolutions we have right now.
3. Game runs 1080p on PS5 in 60FPS but struggles to keep that FPS, runs around 45-50FPS. Most of the performance uplift will go into fixing performance, we could see games that look essentialy identical when it comes to graphical features but have better performance and image quality (while having the same resolution)
4. Game runs in 900p or 720p in 60FPS on PS5, all that + power of the Pro will go into fixing image quality of the game, increasing resolution to something that PSSR can change into good 4K experience. No change in performance or graphics.
5. Game runs in 900p or 720p but struggles to reach 60FPS, I won't even comment on that and we have games like that on PS5
Even DLSS can't produce good IQ (in motion) from 720p to 4K so some games will look like shit anyway...
a 7700XT will be comparable to a 4070 in rasterization but way off on RT, but PS5 Pro will have better RT capabilities than a 7700XT.
This is just a baseline example, 45% more headroom is massive, in reality if a game runs at 720p and struggles to reach 60fps on PS5 then it's a pile of shit and wouldn't run well on a 4070 either, it's all relative right, some games are just not saveable no matter how much brute force you throw at them.
The coherency engines are capable of communicate with CPU, GPU and all the coprocessors to improve cache utilisation.
4070 is still above that by more than 10% and 3080 is almost 20% better in raster.
45% is big and also... not big. It will take 30fps game ~45FPS and game that runs in 45FPS (like wukong hahaha) to stable 60. This is nice improvement but nothing earth shattering.
When it comes to resolutions 45% won't even let you go from 1080p to 1440p...
Firstly that's relative performance assuming PC, DX11/12 PS5 vs 2080Ti has a 25% relative performance increase toward the 2080Ti, but I can play Fortnite at a very stable 120fps on PS5 but get around 70/80fps on a 2080Ti at the same native resolution, PS5/Pro have other advantages over PC's.
There are PS5 games that have offered similar performance to a 2080Ti at the same settings which defies expectation of the PS5, all engines are not created equally.
Secondly - you can't have it both ways 45% is huge or 10% is nothing - it will be comparable to a 4070 and will surpass it in some titles.
Wukong will do 120fps on PS5 Pro PSSR upscaled from 1080p with the same settings and better IQ thanks to the 45% uplift in rasterization and the improved 4xRT increase assuming they patch it.
PS5 outperforming the 2080 Ti by 50%? I don't think so.Firstly that's relative performance assuming PC, DX11/12 PS5 vs 2080Ti has a 25% relative performance increase toward the 2080Ti, but I can play Fortnite at a very stable 120fps on PS5 but get around 70/80fps on a 2080Ti at the same native resolution, PS5/Pro have other advantages over PC's.
There is one game: The Last of Us Part I.There are PS5 games that have offered similar performance to a 2080Ti at the same settings which defies expectation of the PS5, all engines are not created equally.
In 2020 when PS5/XSX released both consoles were compared to 2070S - 2080, nothing changes since then other than Nvidia and developers not giving a fuck about turing architecture anymore. Raw power of PS5 is still around that level. 2080ti is comfortably above that and your anecdotal evidence is just that, anecdotal evidence. Go watch some DF videos.
Wukong runs in 45FPS in 1080p, you need that 45% just to reach stable 60 in 1080p. It also uses software lumen so 45% is all you get from raster improvement. If they patch it it will be more heavy anyway, hardware lumen performs worse than software version on Ada cards even with best RT hardware available.
120fps only with frame generation...
PS5 outperforming the 2080 Ti by 50%? I don't think so.
There is one game: The Last of Us Part I.
Welcome! Rumour from the same dude who leaked the PS5 Pro design is that we're getting an announcement in the first two weeks of September. We'll see though.Hi everyone just joined neogaf I'm looking forward to ps5 pro do you think we'll announcement by end of next week
70-80fps to 120 is a 50% increase using 80fps as the baseline. This never happens.Where did I say PS5 outperforms a 2080Ti by 50%, I used one example, being Fortnite where 2080Ti struggles at the same settings as PS5 and get's outperformed by 30/40% unless I drop to DX11 on the 2080Ti where it will perform within 5% of the PS5.
probably the announcement of the announcement in the next 7-9 daysHi everyone just joined neogaf I'm looking forward to ps5 pro do you think we'll announcement by end of next week
Thanks your my 1st reply hope we get something like road ps5 tech talk I'm a little worried it's gonna be playstation blog postWelcome! Rumour from the same dude who leaked the PS5 Pro design is that we're getting an announcement in the first two weeks of September. We'll see though.
WelcomeHi everyone just joined neogaf I'm looking forward to ps5 pro do you think we'll announcement by end of next week
Where did I say PS5 outperforms a 2080Ti by 50%, I used one example, being Fortnite where 2080Ti struggles at the same settings as PS5 and get's outperformed by 30/40% unless I drop to DX11 on the 2080Ti where it will perform within 5% of the PS5.
When it comes to resolutions 45% won't even let you go from 1080p to 1440p...
This is not how basic mathematics work.120fps vs 80fps is a 33.33% uplift in FPS, PS5 performs nothing like a 3090 and i haven't claimed it anywhere.
Thanks for replying to me your a legend I always look for your comments on this forumWelcome
I think next week looks like prime time as they will not want to detract from Astrobots launch
Stop comparing 7700xt to PS5 Pro in such a rudimentary manner. It has much better memory setup.
Oh I wouldn't anywhere near say that though I appreciate the kind wordsThanks for replying to me your a legend I always look for your comments on this forum
Yet here we are:
Stop comparing 7700xt to PS5 Pro in such a rudimentary manner. It has much better memory setup.
It talks about lower bounds of dynamic resNMS update probably talks about upper bounds of dynamic resolutions, we will see actual stats in game.
It has faster memory for sure but you forget about super fast L3 memory that both 6800 and 7700XT have while PS5 Pro don't.
NMS update probably talks about upper bounds of dynamic resolutions, we will see actual stats in game.
It talks about lower bounds of dynamic res
I didn't forget anything. IC means jack shit at the output resolution levels PS5 Pro will be rendering.
No, lower bounds.
Doesn’t Fortnite drop to around 720p (upscaled with TSR to 1440p) on the PS5 for the 120fps mode? The 60fps drops to 864p for 60fps so it might even be lower.
You telling me a 2080ti won’t get over 200fps with those settings?
I didn't forget anything. IC means jack shit at the output resolution levels PS5 Pro will be rendering.
Fornite on the consoles uses dynamic resolution with TSR with a 4K target and the range is 864p-1836p. The average according to epic is 55% of 4K or 1188p. DF's analysis said it's comparable to High settings on PC. That's in the 60fps mode. The 120fps mode also gets rid of software virtual shadow maps, Lumen and Nanite.I wasn't aware of PS5 using TSR and dynamic resolution the IQ is very very good in that case on PS5, I haven't checked Fortnite on the 2080Ti for a while, but i'd expect it will easily hit 240fps in DX11 but i don't think it would get anywhere close to 200fps with DX12 and Nanite/lumen enabled even with TSR and Dynamic Res on the 2080Ti based on past performance.
Kinda have to. In the absence of an actual PS5 Pro, all we can do is use PC parts in a similar ballpark to get an idea.Me coming onto this thread seeing we're arguing about the PS5 Pro's PC counterpart for the millionth time :
Me coming onto this thread seeing we're arguing about the PS5 Pro's PC counterpart for the millionth time :
Me coming onto this thread seeing we're arguing about the PS5 Pro's PC counterpart for the millionth time :
Me coming onto this thread seeing we're arguing about the PS5 Pro's PC counterpart for the millionth time :
I think adds to the discussion and it can be informative but some posters use the pc comparison to belittle pro not saying you I think your always fair when comes to console and pc chatKinda have to. In the absence of an actual PS5 Pro, all we can do is use PC parts in a similar ballpark to get an idea.
People will keep jumping in and correcting people if they keep posting things about PC that are blatantly wrong.PCMR is more interested in the PS5 Pro than people that will actually buy it....
LOL
It tells you everything you need to know
This is from the same article.
Now, lets talk about that 123TFLOP FP16 number that AMD claims. While this is technically correct, there are significant limitations on this number. Looking at the RDNA3 ISA documentation, there is only one VOPD instruction that can dual issue packed FP16 instructions along with another that can work with packed BF16 numbers.
These are the 2 VOPD instructions that can used packed math.
This means that the headline 123TF FP16 number will only be seen in very limited scenarios, mainly in AI and ML workloads although gaming has started to use FP16 more often.
In the article, it states Dual-Issue can work with FP16 & BF16 instructions.
Below we can see WMMA utilizing FP16, BF16, & Int8 instructions.
From my understanding, it seems the SIMD32 utilize the AI Accelerators for higher throughput when doing Matrix operations but the AI Accelerators aren't dedicated in the same way as CDNA2 Matrix Cores. Maybe this changes in RDNA4.
You can read more on RDNA4 here.
Examining AMD’s RDNA 4 Changes in LLVM
Thanks for the link, that was a great read, and interestingly ....assuming I understood the article -especially the relevant paragraph halfway down about V_DUAL_DOT2ACC_F32_F16 - and how AMD ISA denotes instructions for the two instructions:
V_DUAL_DOT2ACC_F32_F16
and
V_DUAL_DOT2ACC_F32_BF16
Going by what the article said, I'm taking the first instruction as a dual issue instruction, where presumably two vectors v1 [x, y, z, w] and v2[s, t, q, r] with eight FP16 components total(packed in pairs into FP32) so
1st instruction [xy] dot [st] = RPM (x * s) + (y * t) = A
2nd instruction[zw] dot, [qr] = RPM (z * q) + (w * r) = B
Accumulate = A+B
And the same for the BF16 datatype which AFAIK is a specialist neural network leaning FP data type (by Google) for clamped data that swaps 3 significant bits of FP16 for 3 more decimal bits, that just so happens to match FP32 datatype's decimal bit precision. Making it ideal for FP32 high precision AI ML inference but just using 16bits of data.
Each inference depending on the variable count is effectively broken down into a multitude of those dual issue dot2 accumulations as expanded below(assuming I haven't misinterpreted anything) which for the purpose of PSSR would mean that between both RPM and dual issue that would effectively be 4 times the throughput of FP32, but at the precision of FP32 if using BF16
i = x * s + y * t + z * q + w * r ........
Me coming onto this thread seeing we're arguing about the PS5 Pro's PC counterpart for the millionth time :
If infinity cache means jack shit for ~1080p then more memory bandwidth of PS5 Pro (vs. 7700XT) means that as well...
Hi does this thread definitely close when ps5 pro launches? That would be shame lot of good discussion hereHonestly the only reason I'm on here going back and forth with people is out of love and cognizant of the fact that in another week or so this thread will effectively die and I'm sad about it
Anyways, back to arguing...
Lol 1080p? Are you crazy my friend!? Try 4k output always. Even when upscaling with PSSR it will always be a 4k output aka 4k size framebuffer and memory requirements.
Hi does this thread definitely close when ps5 pro launches? That would be shame lot of good discussion here
PS5 | PS5Pro |
1440p-4K@30fps (Fidelity Mode) | 1440p + PSSR > 4K @40fps+/ ~1296p + PSSR >4K @ 60fps |
900-1080p@60fps (Performance Mode) | 1080p + PSSR > 4K @60fps+ (maybe as high as 80fps)/ 1080P + PSSR > 1440p + RT @ 60fps |
Truth be told is that most of this stuff is moot. I think a better way to look at this stuff... is something like this instead.4070 is still above that by more than 10% and 3080 is almost 20% better in raster.
45% is big and also... not big. It will take 30fps game ~45FPS and game that runs in 45FPS (like wukong hahaha) to stable 60. This is nice improvement but nothing earth shattering.
When it comes to resolutions 45% won't even let you go from 1080p to 1440p...