- Joined
- May 27, 2009
- Messages
- 3,405 (0.63/day)
- Location
- Brunswick, GA
System Name | Haz0 |
---|---|
Processor | i7-2700K |
Motherboard | Gigabyte Z68X-UD3H-B3 |
Cooling | Chicken Stock |
Memory | 16GB G.Skill Ripshits X 1600MHz |
Video Card(s) | Sapphire 5850 |
Storage | Kingston 128GB SSD + WD Black 640GB + 2x 1.5TB |
Display(s) | 24" Acer G245HQ + 19" Lenovo L194 |
Case | Antec NSK-4482 Orangified |
Audio Device(s) | X-Fi XtremeGamer |
Power Supply | Corsair TX750W |
Software | Windows 7: Electric Boogaloo |
Since my 4870 is starting to show its age in many new games, I've decided to try to squeeze out a few more FPS via some mild overclocking. I've never done this before and don't know much about it so I need some help.
Here's my card. It's the IceQ version but I think the cooler is the reference model. It says "4+ Turbo" on the box, referring to the 4GHz memory clock that it's supposed to have but it's only at 1GHz and I don't even think they go that high so I'm not sure what's up with that. Anyways, it runs from 68-75C even under load with the fan on auto. Oh, and I'm using the new 10.3a drivers.
So I opened up ATI Overdrive in CCC, unlocked it, and cranked everything up figuring these weren't drastic increases and that this is a limited tool. I haven't seen any option to go higher than 790/1100 so I guess I'm right. Anyways, I ran the Just Cause 2 benchmark before OC'ing and got 51.01. After OC'ing I got 52.38. It's a very small difference but I was watching my temps and they were exactly the same as stock, so I figured why not leave it overclocked. Next, I played some BC2 and whattayaknow:
Getting artifacts and model glitches up the bum I decided to do some more intensive stress testing. I used the stresser in Overdrive before I did the JC2 benchmark and it passed with no strange temps or errors. Here's the testing:
As you can see in the second one, Furmark was showing some outrageous clocks. It would display the correct 790/1100 then hop to 5177/7208. You can also see GPU-Z displaying those high clocks over in the corner.
Questions
Here's my card. It's the IceQ version but I think the cooler is the reference model. It says "4+ Turbo" on the box, referring to the 4GHz memory clock that it's supposed to have but it's only at 1GHz and I don't even think they go that high so I'm not sure what's up with that. Anyways, it runs from 68-75C even under load with the fan on auto. Oh, and I'm using the new 10.3a drivers.
So I opened up ATI Overdrive in CCC, unlocked it, and cranked everything up figuring these weren't drastic increases and that this is a limited tool. I haven't seen any option to go higher than 790/1100 so I guess I'm right. Anyways, I ran the Just Cause 2 benchmark before OC'ing and got 51.01. After OC'ing I got 52.38. It's a very small difference but I was watching my temps and they were exactly the same as stock, so I figured why not leave it overclocked. Next, I played some BC2 and whattayaknow:
Getting artifacts and model glitches up the bum I decided to do some more intensive stress testing. I used the stresser in Overdrive before I did the JC2 benchmark and it passed with no strange temps or errors. Here's the testing:
As you can see in the second one, Furmark was showing some outrageous clocks. It would display the correct 790/1100 then hop to 5177/7208. You can also see GPU-Z displaying those high clocks over in the corner.
Questions
- What's up with the "4+ Turbo"?
- Why were the clocks going from 790/1100 to 5177/7208?
- What do you think caused the BC2 craziness?
- Should I change anything?
- What program would one use to overclock to higher levels than what Overdrive allows?
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