With all the hype surrounding this card, I took the plunge from being a satisfied Nvidia user for a year & getting the HD4850 recently.
Now the worry bit:
My configuration is listed below in my sig.Though this card performed very well with games like Crysis, Bioshock, GriD & Quake IV.It’s been very dicey in terms of performance with games like Assassin’s Creed, Rainbow Six Vegas 2 & Test Drive Unlimited.
I have played the last 3 mentioned games @1280x1024 with everything on high & all AA settings rammed up to max.The problem with Assassin’s Creed is I get frames to as low as 32 & drops to 27 at times with high crowd.Similar pattern with R6V 2, this game should have been a walk in the park for this card to handle.It’s giving me random frame rates ranging from 25-35Fps.Both indoors & outdoors.Now the joke being TDU, I used to run this game on my 7900GT with 2X AA (minus HDR) retaining around 34 Fps.With this card I have only increased the AA to 4X & enabled HDR & am still getting 31Fps.
Now something is seriously wrong here.Games like BioShock, GriD, Turok & Gears of War yielded a healthy 60 Fps+ margin which is what I expected.Now why don’t these games have similar frame or near about.Am I expecting too much? Is my CPU a bottleneck? Has anyone with similar card tried this games out? If yes, then what frames do you get?
There have also been some issues with some strange white lines appearing while playing widescreen videos both in Media Player classic & KMplayer.That I presume is a driver conflict.I never had this issue with Nvidia drivers, EVER.How come the ATI drivers are so buggy?
My driver is currently Catalyst 8.7.I would perform a full fresh install of Windows XP once & then try Catalyst 8.8.But I seriously need some thoughts on this issues as it’s been pinching my rear end for some time now.
i dont know about all the games but i too shifted from nvidia to ati, and i got grid the same day i am playing it at full res and its insane. its just too good. though i have the sapphire one, i was getting the gecube one but in the end i thought this was better,
I dont know abt assassin’s creed but rainbow six vegas and test drive unlimited r poorly optimized thats the reason ur gettin low fps and rainbow six vegas 2 is also poorly optimized
u cant overclock processor with intel board , but try overclocking it with software like clockgen and see if there is any improvement in game performance . if yes then change mobo and overclock or get new processor .
Though all suggestion on CPU bottlenecks may be true, you shouldnt be having a bad performance even at 1280 resolution however bottleneck a CPU can do…
A GPU still determines max performance in a game and a CPU can only complement to a certain extent and not be a big factor in determining the performance
And what you have is a fairly good Core2duo CPU. Go for a clean reinstall and test games before installing too many applications/services
I wish it’s a driver issue.I will be trying a fresh install to see if there were any traces of Nvidia drivers remaining, albeit me performing a proper uninstall of the old drivers.
I wish I could say CPU bottlenecking but it should have happened with my 7900GT with TDU too I guess.This can be sorted out if someone with almost near about config post their scores with these games.
Thanks a ton for all your suggestion guys.Much appreciated as always.Oc’ing the CPU or for buying a new one at this point is a no-go for me.I’ll be overhauling the CPU+Mobo+PSU early next year, so till that time this should hold it’s ground.
i think that at 1280 x 1024 and lower resolutions ..its MORE CPU dependant , while at higher resolutions the GPU matters more Ive read in a lot of forums that the C2D e6300 @ stock speed bottlenecks a HD 4850…the same reason why im upgrading from a e6300 to e8400( since am a noob at OCING:) )..once i get hold of a HD 4850
lol got this piece of information from a forum..dunno if its true or not At higher resolutions, chances are the GPU is maxed out trying to fill the pixels. At a lower resolution, there are fewer pixels, which means the gpu has less work to do per frame, so it could do more frames per second. But, while the gpu is doing the coloring for the frame, the cpu has to do all of the background tasks for that frame (AI, physics (may be moved to graphics cards in the near future) user input, ETC.). At a higher resolution, the cpu can calculate all of that stuff before the gpu finishes coloring it, so the cpu has nothing to do until the frame is filled. At lower resolutions, the gpu may finish before the cpu, so the gpu would spend more time idling while the cpu is closer to full load
