5850 overclocking gains: 725/1000 compared to 950/1200 in Serious Sam HD

[Sylvanas]

'Scaling' is going to vary by each game or more importantly between each engine. If AMD can extract alot of ILP (Instruction Level Parallelism) from a given game then that is going to scale very well with core frequency. If the application/engine is not coded in that way or in a way where it makes extracting ILP difficult then scaling will not be as good. I think in general you are going to see Source, UE3, Farcry2's 'Dunia' engine etc show the largest gains (not to mention the good work done by the OP in Serious Sam).

I couldn't care less if VRMs or some non-complex component gets up to 120C. 125 is danger territory, everything else fine.

Indeed, people forget that VRM's are designed to run at 100+c up to about 125c, these components don't 'need' to be kept cool (hence why many manufacturers do not put sinks on them) but it can absolutely aid your overclock if you keep these components cool.

 

[konakona]

I couldn't care less if VRMs or some non-complex component gets up to 120C. 125 is danger territory, everything else fine.

me neither, as long as it doesn't prohibit my overclock. Mine is in 110~120 range depending the amount of cooling I throw at it with relatively modest voltage bump. I wouldn't dare to run mine at 1.3v as is

 

[MrK6]

Thanks for posting these dug, very nice presentation :thumbsup:.

 

[lopri]

Where does the card (5850) idle when overclocked? I don't overclock my 5870 because I noticed overclocking raised its idle frequencies. (150/300 to 300/800)

 

[MrK6]

Where does the card (5850) idle when overclocked? I don't overclock my 5870 because I noticed overclocking raised its idle frequencies. (150/300 to 300/800)

It might be the overclocking program or the driver set you're using. My 5850 at 900/1250 using the 10.5 WHQL drivers still idles at 157/300. My entire rig idles at 82W draw from the wall .

 

[Kenmitch]

Where does the card (5850) idle when overclocked? I don't overclock my 5870 because I noticed overclocking raised its idle frequencies. (150/300 to 300/800)

I never had this problem until I went to the 10.5's. If I use CCC to overclock my card it sets 2d to 400 and whatever my memory is set to and bumps voltage to 1.063v which is default for playing videos. Maybe because of hacked bios? Maybe too many driver stopped responding errors from my overclockng adventures

Unsure if it's a bug or what.

 

[MrK6]

I never had this problem until I went to the 10.5's. If I use CCC to overclock my card it sets 2d to 400 and whatever my memory is set to and bumps voltage to 1.063v which is default for playing videos. Maybe because of hacked bios? Maybe too many driver stopped responding errors from my overclockng adventures

Unsure if it's a bug or what.

I've had that happen recently, might have been due to too many driver crashes from overclocking adventures . I've installed new drivers several times since then and I don't have the problem anymore. I'm using a hacked BIOS (software overclocking limits unlocked), but not your modded 5870 BIOS, so that could be it too. If the driver clean and reinstall doesn't fix it, you could try poking around the BIOS with RBE.

 

[Kenmitch]

I've had that happen recently, might have been due to too many driver crashes from overclocking adventures . I've installed new drivers several times since then and I don't have the problem anymore. I'm using a hacked BIOS (software overclocking limits unlocked), but not your modded 5870 BIOS, so that could be it too. If the driver clean and reinstall doesn't fix it, you could try poking around the BIOS with RBE.

Me and my 5850 have killed a couple of Win7 installs already some how we seem to take out the video subsystem playing around....But last time I reloaded I made a full system image just in case I did it again. If that fails I could always boot from my 640gb black I guess.

For some reason it started with the 10.5's when using the ati overdrive it for some reason uses the clock info 4 instead of the clock info 1 for the idle speeds when viewed with RBE.

That hacked 5870 bios is good for 1025\1300 1.287v

Might try the remove drivers and run driver cleaner thing and see if it'll fix itself. If not I guess It might be easier to just hack the hacked bios again and do a set it and forget it and not even bother with ati overdrive at all. Not like I gotta watch the temps anyways!