5970 benchmarks

[muon]

Also, are there any successful over clocking results??

Only scanned a few reviews, hardwarezone and Anand tried to OC 3 cards between them and failed miserably to achieve stock 5870 speeds. I would expect at this stage an overclocked 295 is faster than a 5970?

Well not overclocked the HD 5970 has a 30% lead (this may be underestimated because of some games being cpu limited in the TPU review, in games like warhead the difference was massive). Considering the hd 5970 does overclock from 725 to ~800 which is around 10%, that's a lot for the gtx 295 to catchup just by overclocking.

 

[maddness]

Also, are there any successful over clocking results??

Only scanned a few reviews, hardwarezone and Anand tried to OC 3 cards between them and failed miserably to achieve stock 5870 speeds. I would expect at this stage an overclocked 295 is faster than a 5970?

the xfx black edition looks impressive:

- Core Clock: 725MHz (Up to 1.0GHz with OverVolt Tool)
- Memory: 2048MB GDDR5
- Memory Clock: 4000MHz (Effective) (Up to 6.0GHz with OverVolt Tool)
- Memory Bandwidth: 256GB/s

1GHz core and 1500MHz memory ... impressive if it can really do that

 

[straxusii]

Also, are there any successful over clocking results??

Only scanned a few reviews, hardwarezone and Anand tried to OC 3 cards between them and failed miserably to achieve stock 5870 speeds. I would expect at this stage an overclocked 295 is faster than a 5970?

Toms had success, doesnt bode well though does it.

 

[Greebo]

A waterblock would be nice on one of these and some serious volts as well.

 

[RavenXXX2]

an overclocked 295 is faster than a 5970?

Then you woke up and smelt the coffee.

 

[straxusii]

I would expect at this stage an overclocked 295 is faster than a 5970?

At what? Melting maybe but that's about it.

 

[Lightnix]

Also, are there any successful over clocking results??

Only scanned a few reviews, hardwarezone and Anand tried to OC 3 cards between them and failed miserably to achieve stock 5870 speeds. I would expect at this stage an overclocked 295 is faster than a 5970?

Guru3D got 900MHz on the core: http://www.guru3d.com/article/radeon-hd-5970-review-test/27

 

[BubbySoup]

I would expect at this stage an overclocked 295 is faster than a 5970?

I'm in awe that you actually typed that out and posted it, lol.

 

[straxusii]

I think the people buying xfire 5850s for under £400 at launch are laughing now. The 5850s seem to overclock way better than a 5970.

 

[PrincessFrosty]

900-925 on the core and 1250-1300 on the mem is possible when using the volt mod application.

Some of the overclocking is done without that and fails to meet 5870 speeds. I think the general consensus so far is that without the voltmod you'll fall short on the GPU clock probably about 800 tops, and match the memory speed.

This is essentially a 5850x2 not a 5870x2, if you want the latter you will have to volt mod it with ATIs new volt mod application, thats the impression I get from looking at a great deal of the reviews this morning.

 

[D.P.]

Well not overclocked the HD 5970 has a 30% lead (this may be underestimated because of some games being cpu limited in the TPU review, in games like warhead the difference was massive). Considering the hd 5970 does overclock from 725 to ~800 which is around 10%, that's a lot for the gtx 295 to catchup just by overclocking.

The above graph shows the 295 above 23% slower than the 5970.

SOme CPU bottlenecking going on.

 

[D.P.]

the xfx black edition looks impressive:

- Core Clock: 725MHz (Up to 1.0GHz with OverVolt Tool)
- Memory: 2048MB GDDR5
- Memory Clock: 4000MHz (Effective) (Up to 6.0GHz with OverVolt Tool)
- Memory Bandwidth: 256GB/s

1GHz core and 1500MHz memory ... impressive if it can really do that

That seems like stock settings, what ATI claim things ill be capable of is not the same as reality. 1GHz wont be achieved with air...

 

[D.P.]

I'm in awe that you actually typed that out and posted it, lol.

if the 295 is 23% slower and can be overclocked more than 23% then it stands to be faster than a 5970.

Yes, clearly the 5970 is a more sensible card but it is hardly smashing the 295 out of the game.. ATIs top of the end card is 20-30% faster than Nvidia last gen top of the end card. Thats all i'm getting at.

 

[D.P.]

900-925 on the core and 1250-1300 on the mem is possible when using the volt mod application.

Some of the overclocking is done without that and fails to meet 5870 speeds. I think the general consensus so far is that without the voltmod you'll fall short on the GPU clock probably about 800 tops, and match the memory speed.

This is essentially a 5850x2 not a 5870x2, if you want the latter you will have to volt mod it with ATIs new volt mod application, thats the impression I get from looking at a great deal of the reviews this morning.

Thats what seems to be the case. unfortunately once you voltmod and up the clocks the power issue puts it well outside ATX specifications so only the best PSU will cope.



Still, i'm impressed ATI released this card before waiting fo r the Nvidia propaganda benchmarks to be released. Guess they wanted to finally state they have the fastest card money can buy at stock speeds, been some time since they could last say that with certainty.

Now Nvidia know what they have to go against. Bring it on.

 

[PrincessFrosty]

Thats what seems to be the case. unfortunately once you voltmod and up the clocks the power issue puts it well outside ATX specifications so only the best PSU will cope.



Still, i'm impressed ATI released this card before waiting fo r the Nvidia propaganda benchmarks to be released. Guess they wanted to finally state they have the fastest card money can buy at stock speeds, been some time since they could last say that with certainty.

Now Nvidia know what they have to go against. Bring it on.

We'll have to see about the PSU, I have an Antec 850W Quattro modular PSU which back when I got it was the mac daddy of PSUs, but now im not so sure.

AMD reckon that you should have a PSU capable of putting out 20A on the 8Pin connector and 15A on the 6pin, I can't remember where I read that this morning, I've read way too many benchmarks in the space of only a few hours lol.

Anyway my Quattro is rated for 18A on each of the 4 12v PCIE connectors, Im hoping that pulling an additional 2A on one connector wont blow it to pieces. It's broken down into 4 12v rails so hopefully well balanced enough to cope, we'll see!

We might have to have a thread to list 5970 capable PSUs so we can work out which are happy to give out the juice needed for the 5870 voltages.

 

[Greebo]

I think the people buying xfire 5850s for under £400 at launch are laughing now. The 5850s seem to overclock way better than a 5970.

True but so far the volt mod software only lets you up it to standard 5870 voltages anyway on the 5970.

My 5850 needs 1.25v for 1050Mhz and a mighty 1.45v for 1110Mhz. My max overclock on standard voltage was less than 1000Mhz.

Throw in the fact you can now overvolt the memory and get 1500Mhz when all the 5850/5870 top out at 1300Mhz,there is a lot more potential in the 5970.

Plus they will soon be £450 which is what they should be and hence only twice the price of two 5850's.

 

[PrincessFrosty]

True but so far the volt mod software only lets you up it to standard 5870 voltages anyway on the 5970.

My 5850 needs 1.25v for 1050Mhz and a mighty 1.45v for 1110Mhz. My max overclock on standard voltage was less than 1000Mhz.

Throw in the fact you can now overvolt the memory and get 1500Mhz when all the 5850/5870 top out at 1300Mhz,there is a lot more potential in the 5970.

Plus they will soon be £450 which is what they should be and hence only twice the price of two 5850's.

Yep the 5970 has a big headroom for overclocking with the overvault utility, remember that so far ATI only allow you to overvolt to 5970 voltages where as some partners might build the utility to allow higher voltages.

Overvolting the 5970 to 5870 voltages isn't really over volted at all, the only thing being stressed there is the PSU, the hardware inside the card is 5870 hardware and the cooling system is designed to deal with 400W worth of heat which is specd way above the normal design.

We've already seen people willing to overvolt these cards obtaining 5870 speeds is trivial, no additional cooling needed no hardware or bios mods needed just OC and OV.

 

[fornowagain]

Anyway my Quattro is rated for 18A on each of the 4 12v PCIE connectors, Im hoping that pulling an additional 2A on one connector wont blow it to pieces. It's broken down into 4 12v rails so hopefully well balanced enough to cope, we'll see!

It's not that it will damage the psu, the rail is nothing more than an over current circuit. Unless its something very special, generally all the rails feed from the same primary transformer and regulation. Just means that as the rail approaches its current limit it trips out. Buying new, I'd be inclined to look for a psu without individual rails, just one bloody great big rail. Something like the Corsairs or PSP&C. Bear in mind the power (and heat) increases with the square of the voltage, so power can go up a very quickly indeed. 20A is supposed to be the maximum allowed current limit according to pcie-sig specs. I'd guess a lot of psus will hit rail limits when overclocking, especially considering there's only two pci-e connectors.