Go Back   AnandTech Forums > Hardware and Technology > Video Cards and Graphics

· Hardware and Technology
· CPUs and Overclocking
· Motherboards
· Video Cards and Graphics
· AMD Video Cards
· Nvidia
· Displays
· Memory and Storage
· Power Supplies
· Cases & Cooling
· SFF, Notebooks, Pre-Built/Barebones PCs
· Networking
· Peripherals
· General Hardware
· Highly Technical
· Computer Help
· Home Theater PCs
· Consumer Electronics
· Digital and Video Cameras
· Mobile Devices & Gadgets
· Audio/Video & Home Theater
· Software
· Software for Windows
· All Things Apple
· *nix Software
· Operating Systems
· Programming
· PC Gaming
· Console Gaming
· Distributed Computing
· Security
· Social
· Off Topic
· Politics and News
· Discussion Club
· Love and Relationships
· The Garage
· Health and Fitness
· Home and Garden
· Merchandise and Shopping
· For Sale/Trade
· Hot Deals with Free Stuff/Contests
· Black Friday 2015
· Forum Issues
· Technical Forum Issues
· Personal Forum Issues
· Suggestion Box
· Moderator Resources
· Moderator Discussions

Thread Tools
Old 01-31-2009, 02:04 PM   #1
Join Date: Jul 2006
Posts: 109
Default Types of AA - CSAA vs MSAA vs 16xQ CSAA

Sorry if this has been answered before, I've tried wikipedia to begin with then moved to google then moved to a forum search and couldn't find much.. I just got a GTX 280 and my old rig has new life I'm playing Left 4 Dead and feel like I can probably push higher than the 2x I was doing with my last card, but there are so many options!


I know the different multipliers are a case of "higher is better" but what about the other types? If anyone is generous enough to give a full explanation (or link to one) I'm very curious and would love learn more, but I'd be super grateful also for just a quick "this is the best looking option" answer, if there is a clear answer.

Thank you in advance for any help!!
imported_trajan is offline   Reply With Quote
Old 01-31-2009, 02:36 PM   #2
Join Date: Nov 2001
Posts: 4,112
Default Types of AA - CSAA vs MSAA vs 16xQ CSAA

CSAA is actually just 4xAA with more coverage samples.

Q is plain old MSAA.
AzN is offline   Reply With Quote
Old 01-31-2009, 02:41 PM   #3
Diamond Member
Join Date: Jun 2001
Posts: 9,537
Default Types of AA - CSAA vs MSAA vs 16xQ CSAA

Bit-Tech AA Basics
Bit-Tech Transparency AA Basics

Those are some good places to start, although they won't give you a great comparison of the different sampling techniques in practice. Even comparing AA SS will only get you so far as you'll have to zoom way in until each pixel looks like a sugar cube to see any difference beyond 4xAA.

It typically comes down to more samples = better quality = worst performance. The #x multiplier isn't really a good indication of # of samples or performance, but it usually is a pretty good gauge of performance. Some of the coverage sample techniques used with newer cards however can offer better AA without too much more performance hit though.
Intel Core i7 5820K @4.5GHz | Gigabyte X99 Gaming 5| Win8.1 x64 Pro | Corsair H100i | Adata 32GB DDR4 2800 | Nvidia GeForce GTX Titan X | Asus ROG Swift 144Hz 3D Vision G-Sync LCD | 2xDell U2410 |Samsung 850Pro 256GB SSD | Samsung 840EVO 4x1TB SSD RAID 0 | Sony STR-DG1000 A/V Receiver | Polk Audio RM6880 7.1| LG Blu-Ray | Auzen X-Fi HT HD | Logitech G110/G502/G27/G930 | Corsair Air 540 | Corsair HX850i
chizow is offline   Reply With Quote
Old 01-31-2009, 03:15 PM   #4
Join Date: Jul 2006
Posts: 109
Default Types of AA - CSAA vs MSAA vs 16xQ CSAA

Thank you both!
imported_trajan is offline   Reply With Quote
Old 01-31-2009, 04:50 PM   #5
Cookie Monster
Diamond Member
Cookie Monster's Avatar
Join Date: May 2005
Location: Down Under
Posts: 4,993
Default Types of AA - CSAA vs MSAA vs 16xQ CSAA

Ok here are the basics. nVIDIA has LOADS of different AA settings that can be used through this program called nhancer. Ill just go over coverage sample AA, or CSAA.

You have 8xCSAA, 8xQ, 16xCSAA and 16xQ. 8xCSAA is basically 4xMSAA+ 4 "possible" coverage samples. This means that the lowest quality in a scene could be a minimum of 4xAA, and the highest quality could be 8xAA (This varies depending on the number of coverage samples within the scene). 8xQ is basically 8xMSAA. 16xCSAA follows the same principle as 8xCSAA except that it uses 8 coverage samples meaning the highest quality could be as high as 16xAA. 16xQ isnt 16xMSAA but rather a more higher level of 16xCSAA, with a minimum of 8 multi samples (so 8xAA is the minimum in any given scene) and 8 coverage samples.

So basically, CSAA is a very good AA when it comes to memory buffer efficiency and performance as 16xCSAA is usually 10~20% slower than 4xMSAA.

Cookie's Rig:
Intel i5 2500K@4.5GHz/1.36V//Corsair H80 || Asus P8Z68-V PRO || G.Skill RipJaws 4x4GB@DDR3-2133 || EVGA GTX780@1150/6500MHz || 2xSamsung 840 250GB || 2xWD Green 1TB || Seasonic X-560 || Asus Xonar Essence STX || Silverstone FT02 LE || 2xDell U2412M || Windows 7 Pro x64 || Logitech G700 || Sennheiser HD595 || Audioengine A2
Cookie Monster is offline   Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 03:43 AM.

Powered by vBulletin® Version 3.8.8 Alpha 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.