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** Official ATI 5770 Thread **

Just got rid of my RC build and installed a retail version. Everything seems fine, only problem ive noticed on these cat 9.12's is there is none of that cool water graphics on Dirt 2 (DX11) when you go through the puddles :( its there when i run the game in dx9 though! meh
 
nV_Jason said:
Just got rid of my RC build and installed a retail version. Everything seems fine, only problem ive noticed on these cat 9.12's is there is none of that cool water graphics on Dirt 2 (DX11) when you go through the puddles :( its there when i run the game in dx9 though! meh
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All the in-game videos on Dirt 2 were screwed for me last night. Game played fine though.

I was doing the Croatian Rally so wouldn't of noticed the water effects anyway.
 
TNA said:
Nice scores maddness.

Is the 1050/1350 completely 24/7 usable and stable?

Also what is the highest you overclocked your card?
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highest I've tried is 1050/1445

but as the memory sort of throttles, we can say 1050/1300 or there abouts will give the best results!

yes its 100% stable but I've backed down to 900/1300 for 24/7 use, I would rather keep the volts at default
 
thebandit said:
A very interesting article here for all you 5770 owners:
http://alienbabeltech.com/main/?p=12474&all=1

It seems to dispel the suggestion that the performance of the 5770 is limited by its memory bandwidth. Seems if you want to get the best out of your 5770 upping the core clock will yield the best results.
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That article is trash, they ARE limited by memory bandwidth.

A 5770 has the same amount of shaders, ROPS and TMU's as a 4870 and yet it gets beaten by it in nearly every game.

Now the only difference between the 2 cards is the memory bandwidth.... And on top of that the 5770 has an extra 100Mhz on the core over the 4870.

Guru3d review of the 5770, showing a 5770 running a 1Ghz on the core getting hammered by a STOCK clocked 4890.

Again the only difference between them is the amount of bandwidth available so if the 5770 isn't bandwidth starved why is it so far behind the 4870 and 4890?
 
almighty15 said:
That article is trash, they ARE limited by memory bandwidth.

A 5770 has the same amount of shaders, ROPS and TMU's as a 4870 and yet it gets beaten by it in nearly every game.

Now the only difference between the 2 cards is the memory bandwidth.... And on top of that the 5770 has an extra 100Mhz on the core over the 4870.

Guru3d review of the 5770, showing a 5770 running a 1Ghz on the core getting hammered by a STOCK clocked 4890.

Again the only difference between them is the amount of bandwidth available so if the 5770 isn't bandwidth starved why is it so far behind the 4870 and 4890?
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Agreed, people are miss interpreting the evidence. Bandwidth limited means that the chip needs more bandwidth at certain times, not all the time. Nearly all chips need more bandwidth at some point, however the 5000 series is more limited than one would want. The 4890 has 66% more bandwidth than a 5770 which gives it ~15% more performance. If the 4890 memory is downclocked to match the 5770 bandwidth they perform within 1-2%. I have little doubt that the 5890 refresh will have a wider bus, or ideally for ATI a big jump in RAM speed.
 
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Then why does Crossfire scale so well? You DONT get double the memory bandwidth and yet you are getting 85% and sometimes more scaling.
 
Meaker said:
Then why does Crossfire scale so well? You DONT get double the memory bandwidth and yet you are getting 85% and sometimes more scaling.
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You do in theory as each card is doing around half the work, so you only need half the bandwidth. What you don't get is double the amount of ram.....
 
I have my case fans quite low, so I am able to hear the Powercolour 5770s.

Thing is, I am now picking up a faint "whistling sound" which I am pretty sure is coming from the 5770s.

Does anyone else have this ? Or any advice how to cure it?
 
Do you have the v1 shroud cooler or the v2 egg? I have set my v2 asus cards to 35% fan and cannot hear them at all.
 
I think the Xfire thread shows two 5750's or 5770's is the best you can get from these cards. Even at high resolutions they compete all the way with the 5870\5850 and in many cases beat them. I was quite taken aback by how well the 5750's did against the 5850.
 
I've got a good boost in Vantage (shall stick up some 9.11 to 9.12 comparisons later)

Now to try some games! :)
 
I have seen a good jump in vantage scores too, upto around 18k compared to 14k with the 9.11's. Not had much chance to try many games yet.
 
Catalyst 9.11s

crossfire9991300mem1312.png



Catalyst 9.12s


crossfire1000core1310me.png


Damn you all with your fancy quad core CPUs! :p
 
You may have got higher than you did with the 9.12's, your cpu score has dropped a bit or was it just overclocked more on the 9.11 run?
 
rolypolyman said:
I think the Xfire thread shows two 5750's or 5770's is the best you can get from these cards. Even at high resolutions they compete all the way with the 5870\5850 and in many cases beat them. I was quite taken aback by how well the 5750's did against the 5850.
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Indeed they are sometimes at and above 295 levels than 5870 the guru3d showed this I think they only got beaten in 2 tests, Far Cry and another I cant remember, bargain amounts of performance for your money.
 
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