what should i have catalyst AI set to

[bigjimmyauk]

off,standard or advanced i don't know what the hell to do with anything on ccc i'm probably missing out on a few FPS cause i don't know how to use it.

put short i just installed lastest drivers and ccc and off i went didn't adjust anything

can anyone give me some pointers on things to get the most out the card i'm currently playing crysis at 1920x1080 on medium
the card is a 4870 512mb

 

[twist3d0n3]

leave it on standard

leave everything as is generally seems fine, but adjust things like v sync down to preference

 

[bigjimmyauk]

leave it on standard

leave everything as is generally seems fine, but adjust things like v sync down to preference

how does v-sync work

 

[maddness]

leave it on standard, advanced may give a negligible performance boost at the sacrifice of image quality (disabled disables crossfire)

v sync - I prefer it enabled to avoid image tearing, and lock max frames to the monitors refresh rate (e.g. 60fps)

the rest are up to you, lowering settings to performance will lower image quality and increase performance

I prefer everything on the best image quality bar anti aliasing, setting anti aliasing mode to super sampling is going to kill performance especially in newer games

 

[Auraomega]

As far as I'm aware VSync will only send info to the screen in time to be drawn on a refresh. With VSync disabled the data is being continuously overwritten and thus when the frame updates you end up with tearing (as it's still writing info for that frame).

Generally speaking, leave VSync off if tearing isn't an issue or you can't see it, VSync can cause horrendous input latency issues as well as a hit on framerate (as it's having to wait every T to be able to draw again, instead of drawing when it's ready). The refresh rate in Hz is the max VSync will run at.

Hopefully you've understood that, if not I'm sure some other kind soul will describe it not so butchered up

 

[bigjimmyauk]

As far as I'm aware VSync will only send info to the screen in time to be drawn on a refresh. With VSync disabled the data is being continuously overwritten and thus when the frame updates you end up with tearing (as it's still writing info for that frame).

Generally speaking, leave VSync off if tearing isn't an issue or you can't see it, VSync can cause horrendous input latency issues as well as a hit on framerate (as it's having to wait every T to be able to draw again, instead of drawing when it's ready). The refresh rate in Hz is the max VSync will run at.

Hopefully you've understood that, if not I'm sure some other kind soul will describe it not so butchered up

well the CCC says my max reported refresh rate is 75hz (1080p 22 inch screen 1920x1080) CCC asks about 3d refresh rate overide options are disabled,same as desktop then any setting from 24 -200Hz

not too sure which one to tick.

 

[Auraomega]

Well ask yourself this, when playing a game do you notice, and moreover, does it annoy you when you see tearing on the screen? If you answer no leave it all alone and keep the max framerate possible, if yes then enable VSync and the highest refresh rate available at your res (most likely 75Hz like you said, but if this gives problems, lower it until 60Hz, or better yet read the manual for your monitor to see it's operating rate at max res).

 

[bigjimmyauk]

Well ask yourself this, when playing a game do you notice, and moreover, does it annoy you when you see tearing on the screen? If you answer no leave it all alone and keep the max framerate possible, if yes then enable VSync and the highest refresh rate available at your res (most likely 75Hz like you said, but if this gives problems, lower it until 60Hz, or better yet read the manual for your monitor to see it's operating rate at max res).

well my manual says max resolution 1920x1080@60hz
so does that mean i should never set it higher than 60hz

 

[Auraomega]

It's generally not advisable to set above this limit. At lower resolutions I've heard monitors can run at higher rates but I've never seen this myself (1 LCD monitor and all CRTs in days gone by).

 

[bigjimmyauk]

It's generally not advisable to set above this limit. At lower resolutions I've heard monitors can run at higher rates but I've never seen this myself (1 LCD monitor and all CRTs in days gone by).

i set it to 60hz and crysis appears to have less tearing i was getting a constast almost see through car at the top of the screen before about an inch deep and full width but it appears to have gone since changing it.

So is Hz the same as frame rate if i set everything to 60hz then no game will ever go above 60 FPS or is that a different matter altogether

 

[Auraomega]

If VSync is enabled then yes, the framerate can never go above the Hz of the monitor, if it's disabled it'll go as fast as it can.

For graphics you have two buffers (or three, if triple buffering is enabled), and the card writes data to one of them, whichever one isn't pointed to by the card as the current screen buffer;
1 - back buffer
2 - screen buffer

In the above case, the screen pointer points to buffer 2 and this is what is drawn to the screen, 1 being the back buffer is where new data is drawn. If VSync is enabled then the pointer switches to buffer 1 as soon as the screen finishes drawing the content of 2, if VSync is disabled then the buffer pointer is switched as soon as data is loaded into 1. This ultimately is why tearing occurs, as the screen might only have drawn 2/3 of the image to the screen when the pointer is switched and you're reading the final 1/3 from a completely different view. This is why the framerate is limited by the frequency.

This isn't technically correct as there are other options that affect it, but it's the basic theory and probably the easiest way of explaining it without getting bogged down in technicalities