So when we have performance issues ("slowdowns")?

[NedLynch]

Originally Posted by Tvrdi

last night no slowdowns (apart from dust issue), dogfights smooth etc....although I raised OC of my GTX470 (TF2) from 750 to 790Mhz on core...I noticed a few very short freezes (stutters)...

Since I have a GTX470 as well, can I ask to what you have your memory clock set and at what voltage.

Here is what I have been using for a while on stock cooling, though with the fan at jet engine noise level. 750/1500/1770 @ 1025mV.
The highest MSI afterburner lets me set the voltage to is 1086mV, but due to not wanting the card to run too hot I try to get away with as little overvoltage as possible.
I have seen overclocks in articles for the pretty iffy memory clock as high as 2000, but I didn't dare to go there yet, can't blow the card since my budget does not really allow for a 570 right now.

[Rjel]

Originally Posted by NedLynch

Since I have a GTX470 as well, can I ask to what you have your memory clock set and at what voltage.

Here is what I have been using for a while on stock cooling, though with the fan at jet engine noise level.

I have an EVGA GTX470 that sounds like that too. I've taken to wearing headphones when I fly just to hear the in game sounds. After several other excellent EVGA cards, this one has been disappointing in that and performance.

[NedLynch]

Originally Posted by Rjel

I have an EVGA GTX470 that sounds like that too. I've taken to wearing headphones when I fly just to hear the in game sounds. After several other excellent EVGA cards, this one has been disappointing in that and performance.

Just like Tvrdi said, our cards are reference cards, mine is an EVGA card. What we could do is buy an aftermarket cooler and put that on our cards, either from Zalman or Artic Cooling (I think I got the name right). Both have good reviews and they make coolers for the 470.
Didn't do it so far since a cooler for my cpu was first on my list (can recommend this one to anybody, Noctua's website has a compatibility list for mobos and memory btw.)

I don't have temp issues (mostly ) at 1087mV, just trying to get away with as little overvoltage as possible.

Very interesting that the memory clock has little performance impact. Good though because there are quite a few people who state that overclocking that one on a 470 is not really great, i.e. can't get it very high.

Originally Posted by NedLynch

Since I have a GTX470 as well, can I ask to what you have your memory clock set and at what voltage.

Here is what I have been using for a while on stock cooling, though with the fan at jet engine noise level. 750/1500/1770 @ 1025mV.
The highest MSI afterburner lets me set the voltage to is 1086mV, but due to not wanting the card to run too hot I try to get away with as little overvoltage as possible.
I have seen overclocks in articles for the pretty iffy memory clock as high as 2000, but I didn't dare to go there yet, can't blow the card since my budget does not really allow for a 570 right now.

Lynch and you, both have a reference design cooling systems (coolers) on your GTX470 cards. My card is MSI GTX470 Twin Frozr 2 with custom (and very efficient) cooling system. Thats why my card is not so noisy and hot. In fact its pretty silent even when the two big custom vents go high in RPM. Therefore I can use higher OC settings with negligible impact on temps and noise.
I left memory on default since it has no big impact on performance. Raised my core clock to 790 Mhz leaving it linked to shaders, so both are going up proportionally. Voltage is at 1050mV. 1090mV is maximum safe voltage you can go. That is if the temps are ok and if the noise is acceptable. With 1050mv I pass all the bench tests (combustor, tropic demo, 3dmarks etc) without artifacts.