Does a 7970 cool better than a 5970?

[420]

Does a stock 7970 cool better than a 5970?

Howabout with a modest overclock?

talking reference cards I suppose

Which card is the longer one?

[JingleBalls]

I don't have info for these cards but I'm sure searching google for some card reviews would get this info fairly easily.

Sorry I couldn't be more help.

[peasant]

My 7970 is at 1100GPU/950MEM 65C 70%FAN huming at 650MH/s. Really easy to work with.

My only experience is with 5k cards is my 5770 that can't get out of the 80's without a boxfan and underclocking the GPU. 130-180MH/s

[420]

I don't have info for these cards but I'm sure searching google for some card reviews would get this info fairly easily.

Sorry I couldn't be more help.

THanks, I never heard of google, joking

[racerguy]

fwiw my guess is the 7970 is much easier to cool as a 5970 seeing as it's a single gpu card.

[crazyates]

Depends on how far you are undervolting them!

I can't undervolt my 7970, so it's pulling 652MH/s @ 1100/325/1.256 with fan = 65% for about 67C (Gigabyte Windforce tri-fan cooler).
My 5970s pulled ~612MH/s @ 675/300/0.95 with fan = 60% for about 65C (Sapphire Reference cooler).

I think the 5970 used less power even. Less power = less heat, which coincides with what those temps show. If I could undervolt my 7970, I would have no problems dropping the core down a bit and getting some power savings, but I havn't put the time into figuring out how. I never met a 58xx card that couldnt undervolt, tho.

[420]

Depends on how far you are undervolting them!

I can't undervolt my 7970, so it's pulling 652MH/s @ 1100/325/1.256 with fan = 65% for about 67C (Gigabyte Windforce tri-fan cooler).
My 5970s pulled ~612MH/s @ 675/300/0.95 with fan = 60% for about 65C (Sapphire Reference cooler).

I think the 5970 used less power even. Less power = less heat, which coincides with what those temps show. If I could undervolt my 7970, I would have no problems dropping the core down a bit and getting some power savings, but I havn't put the time into figuring out how. I never met a 58xx card that couldnt undervolt, tho.

why can't undervolt? and which card is longer

[crazyates]

Depends on how far you are undervolting them!

I can't undervolt my 7970, so it's pulling 652MH/s @ 1100/325/1.256 with fan = 65% for about 67C (Gigabyte Windforce tri-fan cooler).
My 5970s pulled ~612MH/s @ 675/300/0.95 with fan = 60% for about 65C (Sapphire Reference cooler).

I think the 5970 used less power even. Less power = less heat, which coincides with what those temps show. If I could undervolt my 7970, I would have no problems dropping the core down a bit and getting some power savings, but I havn't put the time into figuring out how. I never met a 58xx card that couldnt undervolt, tho.

why can't undervolt? and which card is longer

Some 7970s are voltage locked. I might be able to BIOS flash my Gigabyte to unlock voltage control, but I havn't tried that.

THe 5970 is def longer. My 7970 is tight, but it fits inside my Antec 300. I had to take tin-snips and cut out about 1.5" out of the HD bay to fit the 5970.

[Shadow383]

Depends on how far you are undervolting them!

I can't undervolt my 7970, so it's pulling 652MH/s @ 1100/325/1.256 with fan = 65% for about 67C (Gigabyte Windforce tri-fan cooler).
My 5970s pulled ~612MH/s @ 675/300/0.95 with fan = 60% for about 65C (Sapphire Reference cooler).

I think the 5970 used less power even. Less power = less heat, which coincides with what those temps show. If I could undervolt my 7970, I would have no problems dropping the core down a bit and getting some power savings, but I havn't put the time into figuring out how. I never met a 58xx card that couldnt undervolt, tho.

why can't undervolt? and which card is longer

Some 7970s are voltage locked. I might be able to BIOS flash my Gigabyte to unlock voltage control, but I havn't tried that.

THe 5970 is def longer. My 7970 is tight, but it fits inside my Antec 300. I had to take tin-snips and cut out about 1.5" out of the HD bay to fit the 5970.

Eh?
I know cgminer can't change the voltage on some, but I've never had a problem using MSI afterburner...

[crazyates]

Depends on how far you are undervolting them!

I can't undervolt my 7970, so it's pulling 652MH/s @ 1100/325/1.256 with fan = 65% for about 67C (Gigabyte Windforce tri-fan cooler).
My 5970s pulled ~612MH/s @ 675/300/0.95 with fan = 60% for about 65C (Sapphire Reference cooler).

I think the 5970 used less power even. Less power = less heat, which coincides with what those temps show. If I could undervolt my 7970, I would have no problems dropping the core down a bit and getting some power savings, but I havn't put the time into figuring out how. I never met a 58xx card that couldnt undervolt, tho.

why can't undervolt? and which card is longer

Some 7970s are voltage locked. I might be able to BIOS flash my Gigabyte to unlock voltage control, but I havn't tried that.

THe 5970 is def longer. My 7970 is tight, but it fits inside my Antec 300. I had to take tin-snips and cut out about 1.5" out of the HD bay to fit the 5970.

Eh?
I know cgminer can't change the voltage on some, but I've never had a problem using MSI afterburner...

I got a Gigabyte 7970 GHz, the 1100MHz OC one. CGMiner can change the V down from 1.256 to 1.200 IF the core is lower than 1000. MSI can't do anything to the V, no matter what I try.

[MrTeal]

The 5970 cooler better than the 7970, in that it's cooler is larger and can dissipate more heat. The 5970 produces a lot more heat than a 7970 though. Generally you will have less issues cooling with a 7970 than a ref 5970. The reference cooling solution for the VRMs on the 5970s is an issue.

[superfastkyle]

7970's cooling is way better, I don't use active cooling on my rigs so hot days we are looking at 110 degree ambient temp. 7970 reaches about 77-78 degrees without an undervolt even in these conditions. A 5970 could easily reach 90 in the same conditions, they require extreme undervolt when it gets that hot

[jjiimm_64]

Does a stock 7970 cool better than a 5970?

Howabout with a modest overclock?

talking reference cards I suppose

Which card is the longer one?

Yes.

[420]

okay i'll start to look for a 7970 to buy thanks guys

anyone compare how much lackin ga 7950 is in Mhash compared to 7970?

[crazyates]

okay i'll start to look for a 7970 to buy thanks guys

anyone compare how much lackin ga 7950 is in Mhash compared to 7970?

Check here. 7950 can be OC'd to 500+MH/s, or a 7970 can be OC'd to 650-700MH/s.

[420]

okay i'll start to look for a 7970 to buy thanks guys

anyone compare how much lackin ga 7950 is in Mhash compared to 7970?

Check here. 7950 can be OC'd to 500+MH/s, or a 7970 can be OC'd to 650-700MH/s.

sort of lacks significantly in comparison to my mild overclock 5970s getting 725mhash average