I have a Intel Core i5 650 @ 3.20 GHz and ATI Radeon HD 5800 Series. And whenever i play Starcraft 2 i lag on anything above Low, every other game i can run like a champ but i seriously don't know what to do. Anyone know?
What resolution do you play at ? how's your FPS in other games ?
Also make sure you have the latest VGA drivers installed.
Im forced to play on Low/Medium while i know i can play ultra easily. I get 35 fps on League of Legends and I think 30 on Team fortress all Very High. And recently i just tried downloading the recent VGA drivers and it messed up my Resolution taking forever to fix it
For the most part, the game runs the same on either low or ultra in terms of FPS. However, in any 3v3 or 4v4 game (or any epic battles) they game starts seizing up. Originally, I just had 4gb so I bought 4 more yesterday and I don't notice it making any improvements. I played l4d2 w/ 4 gigs and the game flew. However, it just can't take the big battles. Worst off, it always ends up hitting like a truck. Once I'm in a game for more than 20 minutes, there are usually enough units to start drastically slowing down the gameplay to the point that it just isn't fund anymore. If anyone has any suggestions, I would really appreciate it. You can see my specs below
Send your 58xx for repairs seems like you might have some bad vram or bad memory on the card you should easily get 70+fps on team fortress 2 at max settings with a 58xx card of course. Since you haven't stated your full computer specs it's kinda hard to tell you what is wrong it could also be your PSU is not powerful enough for your current set up.
From what you describe it may be your card is getting to hot over time and your GPU throttles its self to stop it from getting to hot.
If your resolution is bad, change it in CCC to your monitors proper setting. This can happen after reinstalling drivers.
You didn't indicate if the new drivers made any performance diff.
You never did answer the resolution question. What size monitor?
I see you have a mobo with onboard video and a 4870 card. Are you running in hybrid crossfire, or just off of the 4870? I would make sure the onboard video is disabled with a card like the 4870.
Enter the BIOS during boot by pressing delete
I'm not familiar with that particual BIOS, but there should be an option to initialize pci-ex first, which should (from what little reading I've done on your board) use the 4870 only.
You can always check by looking at the Information in the CCC or by looking at "display adaptors" in the Windows device manager to see if one or both are enabled.
I've read a few posts on the 'net about the 5970 having poor performance in SC2. It seems it doesn't respond well with Crossfire, and for users that have 2 cards disabling Crossfire in the CCC allows the game to run much better.
Also, I've read that updated BIOS can sometimes fix issues if you have lock up issues.
Try upgrading to version 10.9 of your drivers.
Under the section "Resolved Issues for the Windows 7 Operating System":
CrossFireTM now functions properly and in-game Anti-Aliasing can now be enabled in "StarCraft II"