Nvidia SGSSAA slower than AMD's SSAA (via CCC)

Mass Effect 2

I prior used to play Mass Effect 2 on my AMD 6950 2GB with forced 4xSSAA mode (from CCC) and the game ran completely playable.

Currently on my GTX760, forcing 4xSGSSAA appears to run the game at the same speed or mostly slower than the above!

Confused..because even I had an AMD Phenom X4 965 CPU back then, currently with the GTX760 I got an i5 4440 CPU.

 

arent those 2 different aa forms?

ssaa = supersampling aa
sgssaa = sparse grid supersampling aa

so, the diff. would be normal i guess..
not shure doh....

 

Also depends on if the AMD one actually is applying SSAA or not. Compatibility bits could mean that the AMD is still only using MSAA (if any kind of AA at all) while the NVidia is actually running SSAA. There's a lot more testing that needs to be done than just "playable" or "not playable".

The performance penalty of SGSSAA and OGSSAA is pretty much identical, so it wouldn't make any difference which variant it was using.

 

AMD's AA =/= SGSSAA.

It really depends on the AA itself and the quality thereof. Too many factors we don't actually know.

And since I don't own an AMD card, and never plan on it as long as AA support on Nvidia cards is strong I probably never will.

760 also does not have the greatest memory bandwidth either.


My GTX 570 can easily handle 8/10 UE3 games with 4xSGSSAA at least at a stable 30FPS at 1080p if it needed to.

 

It also looks way worse in ME2.

I took this earlier this year with R9 290 4xSSAA:

 

SGSSAA is a better form of AA than AMD's SSAA, hence the bigger performance hit.

 

AMD SSAA is Sparse Rotated Grid, but it strangle works on the lines of MSAA points and doesn't perform full screen SGSSAA like Nvidia option does.

I was part of a discussion in a topic long time ago regarding this
http://forum.guru3d.com/showthread.php?t=347335&page=4

But I was an AMD fanboy then and was spamming **** (and nonsense), but looking back I could do good performance with an AMD 5850 (I had back then) on Mass Effect 2 with 4xSSAA forced.

I agree AMD's SSAA is weird, but it did good AA visuals onscreen compared to just MSAA on DX9 titles (when I was checking it).

But, its getting back to the same..I can't appear to have a good breakage point with SGSSAA forced from Nvinspector on my GTX760 of visuals onscreen vs performance (FPS).

I know GTX760 is hell a lot faster than 5850 or 6950 I used, because I switched between them all...just that I'd find that this is the only thing which I am finding a bit let down, honestly.

Also booted up Dragon Age Origins, missing the AMD's weird SSAA implementation in this title too. Unable to visually match the later with with any values of MSAA, different_SSAA_from_inspector nor CSAA, from my GTX760 card.

@Anarion
Yeah I agree with you, its weird...but still.

Edit
Ah fish, I miss Edge Detect AA too.

Time to emulate it with Post LumaSharpen via SweetFX, I guess. But I am not sure if I can get the contrast edges right, sigh..

 

You need to have realistic expectations of framerates.

1080p60 with 4xSGSSAA on only a GTX 760 probably isn't going to happen.


You are more than welcome to try just downsampling with the likes of GeDoSaTo. But AA quality won't be as good.

 

Got some more native non-blown up shots of this?

 

Already compared this years ago with my old account.
Driver forced AA is often a mess with Radeons, even app-requested AA can look worse due to less-than-ideal color values (especially with high contrast content).

 

Thanks!

Doesn't look very good TBH. It's better than no AA though I guess

 

It looks pretty much the same than MSAA except that it does remove aliasing from everything although there are those problems.... Similar to NVIDIA SGSSAA with default AA flag.

 

That's what's bugging me, performance hit is lower than Nvidia GPUs with SGSSAA.

 

And it's already been outlined that the quality isn't nearly as comparable.

Thus >Better quality>Less performance.

 

As long as "perfect" 4xSGSSAA isn't noteworthy more expensive than 4xDSR, everything's normal.
It is supposed to be expensive.

 

It's not at all supposed to cost more than 4xDS/DSR/OGSSAA/call it what you will.

 

Depending on the lighting and postprocessing used in some games, 4xSGSSAA can be more demanding than 4xDSR.
But this is the exception and not the rule.

Then again DSR is relatively mediocre in terms of temporal aliasing compared to SGSSAA.
And AMD driver forced "SSAA" is a complete joke in terms of quality compared to NVIDIA DX9 SGSSAA, so of course it is going to be less demanding :3eyes:

 

Wrong.. Amd's ssaa = ssaa NOT the grid one.

 

Lol. That's what he said, Greek. =/= means 'not equal to'.