**M17x R1, R2, R3 - The Witcher 2 Performance/Problem Discussion**

Thanks for the tips. I'm trying to download the patches now, but the Internet connection here at the lodging is pure crap. Its slower than dial-up. Hopefully they finish downloading while I sleep. The first try they stopped at less then 10%.

*NOTE* It appears my thread got merged here. Just to clarify for anyone reading, my original thread was about The Witcher, not The Witcher 2.

I went down to the main building and used their wifi to finish downloading the patches. Installed them and am now up and running. I applied the .92vbios. Since I wont be running FurMark, I feel that I should be alright. I've OCed to 850/1950 and ran 3DMark06 and had no issues. Dropped it down to 800/1900 for gaming and applied the settings you've mentioned. The game looks amazing. Everything maxed out and running at extremely high frames. Thanks for the tips.

 

Hey all.

I hope it's OK me posting about an issue I'm having with a specific game in these forums. I've asked around in other more relevant forums, but am usually met by replies telling me to either buy a desktop or that AW suck . I know the guys on these forums know their stuff, so I thought I'd try my luck here!

I'm using HWiNFO64 to monitor GPU and CPU loads and temps (in real time via my Logitech G13 LCD display) whilst I play The Witcher 2. Whilst the load on the GPUs reads near enough 100%, the game runs nicely at 50-60FPS with my custom graphical settings (which are high but far from maxed). Sometimes whilst running at 60fps the GPU loads drop below maximum, which I assume is because of vsync limiting the FPS to 60.

But often (when I get into combat or even look in a particular direction), the load on the GPUs will drop to around 60-70%, along with the FPS nose-diving to 25-35 (noticeable "lag").

The load on the CPU never seems to exceed 30%ish, and all GPU and CPU temps are <80oC.

I'm confused as to what is going on. I could understand if the FPS fell whilst GPU load was still being taxed at 100% (like in BF3 which sees GPU and CPU loads running flat out almost constantly), but why are the loads on the GPU JUST dropping like that and subsequently lowering the FPS of the game? The Witcher 2 has been out for almost a year, so I wouldn't expect/suspect driver issues. Is there something askew with my setup (possible bottleneck someplace) or does this just happen? If it does just happen, why?

Is there a bottleneck inherent to the gfx cards themselves which stops them from running at max load? Come to think of it, what does load % for a gfx card actually mean

Any and all help would be HUGELY appreciated! THANKS GUYS!

 

yes the game witcher 2 is known for scaling with CPU power.
the reason you won't see the cpu usage at 100% however is because the game does not use all cores at 100% efficiency.

correct me if i'm wrong but the load % for graphics card (and cpu) is the efficiency. see the cpu/gpu chugs on at specific speeds. sending (and recieving) commads at these intervals, sometimes it has to wait for the information loop to get back before it can run the next line of code. the longer it has to wait, the lower the efficiency.

in this case, the gpu might be waiting for the cpu or some other hardware to catch up.

 

Right. I did not know that. If the cores don't get used with 100% efficiency, and TW2 scales with CPU power, then I feel better, because this has been driving me crazy now for a while not knowing why the GPU loads just keep falling like they do

>>> I actually bought TW2 upon release, but have "refused" to play it until I can get it running nicely! (that and I have a million other games to entertain me!).

I plan to get hold of a 920XM soon and Throttlestop it to 3.4GHz - I really hope that this eliminates the problems I'm having.

Oh OK. That makes sense. Thanks!

Well, I really hope that it's waiting for the CPU! I can defo sort that out!

Thanks A LOT for your reply brother. It's nice to get a lil reassurance from someone who knows what they're talking about and doesn't just tell me to "buy a better computer, laptop fail, lol".

+rep

{I'll be sure to get back to this thread as and when I've upgraded that CPU!}



edit:- I guess we've met before.. "You must spread some Reputation around before giving it to xeroxide again."... some other time then, THX NONETHELESS!