Folding@Home: THGC Needs You -Team 40051

[beanoslim]

Yeah I'm a couple of cold ones down the road😀

Was running a 7950, used to be around the 120k ppd but it was oc'ds to 1100mhz.

 

[Mousemonkey]

Yeah I'm a couple of cold ones down the road😀

Was running a 7950, used to be around the 120k ppd but it was oc'ds to 1100mhz.

Interesting, the "new" 380 also returns about 120k but apparently they are completely different GPU's that by sheer chance share some of the same numbers in their specs.

 

[beanoslim]

How does the 380 oc though and what heat does it produce.

The giga windforce 7950 I had was pretty cool running, around 70C folding.

I have a 280X(7970) here, Powercolour, produces 130 - 170 ppd dependant on wu, oc'd to 1100, runs around 75C.

 

[Mousemonkey]

I don't OC any of my cards, all are running on out of the box settings. Currently it's @72c, 980mhz GPU, 1375mhz Memory and 49840 PPD due to being dished out a Core 18 WU (one of the 660Ti's has it's Core 17 WU it seems).

 

[Sakkura]

Yeah I'm a couple of cold ones down the road😀

Was running a 7950, used to be around the 120k ppd but it was oc'ds to 1100mhz.

Interesting, the "new" 380 also returns about 120k but apparently they are completely different GPU's that by sheer chance share some of the same numbers in their specs.

Yeah, just like a Core i7-4790K and Core i7-6700K are exactly the same thing because they both have 4 cores and perform very similarly.

 

[Mousemonkey]

Yeah I'm a couple of cold ones down the road😀

Was running a 7950, used to be around the 120k ppd but it was oc'ds to 1100mhz.

Interesting, the "new" 380 also returns about 120k but apparently they are completely different GPU's that by sheer chance share some of the same numbers in their specs.

Yeah, just like a Core i7-4790K and Core i7-6700K are exactly the same thing because they both have 4 cores and perform very similarly.

Oh please! Get on the same page, this is a GPU that we're talking about and if it was an Nvidia GPU the attitudes would be somewhat different I reckon. Some of us still recall the uproar when the 8800GT got renamed to the 9800GT and for me the coincidences between the 380 and the 7950 are too many to ignore.

 

[Sakkura]

Oh please! Get on the same page, this is a GPU that we're talking about and if it was an Nvidia GPU the attitudes would be somewhat different I reckon. Some of us still recall the uproar when the 8800GT got renamed to the 9800GT and for me the coincidences between the 380 and the 7950 are too many to ignore.

The 9800GT used the same GPU as the 8800GT, the 380 does NOT use the same GPU as the 7950. Not even the same architecture.

 

[logainofhades]

Yea, I remember this argument, with regards to the 380, in another thread.

 

[Mousemonkey]

Oh please! Get on the same page, this is a GPU that we're talking about and if it was an Nvidia GPU the attitudes would be somewhat different I reckon. Some of us still recall the uproar when the 8800GT got renamed to the 9800GT and for me the coincidences between the 380 and the 7950 are too many to ignore.

The 9800GT used the same GPU as the 8800GT, the 380 does NOT use the same GPU as the 7950. Not even the same architecture.

Well I keep seeing stuff to suggest that it does use the same GPU and the same arch albeit a tweaked version with a different name and number, hence why I asked about the 7950's PPD.

 

[beanoslim]

It seems that upgrades these days are more about same or slightly better performance but with less power and heat.

Admittedly new gpu's seem to advance more with new game demands whereas cpu's just seem to get slightly quicker but run cooler and use less electricity, well supposedly...

If you have a good formula like a 7950 or 7970 where's the harm in tweaking it to perform slightly better, run cooler and use less energy.

Cant say I've looked into the the 3** cards yet as I have had my eye on a pair of 970's.

 

[Mousemonkey]

It seems that upgrades these days are more about same or slightly better performance but with less power and heat.

Admittedly new gpu's seem to advance more with new game demands whereas cpu's just seem to get slightly quicker but run cooler and use less electricity, well supposedly...

If you have a good formula like a 7950 or 7970 where's the harm in tweaking it to perform slightly better, run cooler and use less energy.

Cant say I've looked into the the 3** cards yet as I have had my eye on a pair of 970's.

I don't have an issue with the tweaking it's the renaming and the subsequent claims that it's a brand new GPU that I have a problem with.

 

[beanoslim]

So apparently the R9 380 is a tweaked R9 285 as they both have the Tonga chip, seems like it has very similar performance to HD7950 though.

Similar price and performance to previous cards, different names, hmm.

Not like the new GTX's that just simply improved everything we had
known before and said here's the new cards people.

Seems like there are quite a few noticible memory based improvements on the Tonga chip, it has to be a different chip from the Tahiti doesn't it...

 

[Mousemonkey]

So apparently the R9 380 is a tweaked R9 285 as they both have the Tonga chip, seems like it has very similar performance to HD7950 though.

Similar price and performance to previous cards, different names, hmm.

Not like the new GTX's that just simply improved everything we had
known before and said here's the new cards people.

Seems like there are quite a few noticible memory based improvements on the Tonga chip, it has to be a different chip from the Tahiti doesn't it...

I suppose that depends on your POV and how much faith you have in the PR being the actual truth. At least I know that I am not alone in how I feel about the 380 though so regardless of the abuse I know that I shall receive I will continue to refer to it as a tweaked 7950.

The Radeon R9 380 is a rehash of the R9 285 which means it is based on the latest Graphics Core Next architecture. Still at its roots you will find a graphics card that is almost three years old now (the Radeon HD 7950).

http://www.legionhardware.com/articles_pages/his_iceq_xsup2_oc_radeon_r9_390xr9_390_r9_380,4.html

 

[beanoslim]

Toms Hardware review

Despite what its specifications may suggest, Tonga is not a spin on the Tahiti GPU in the Radeon R9 280 and 280X. Rather, it is a new and condensed version of the Hawaii GPU in the Radeon R9 290 and 290X. Among other things this means it has four times the number of asynchronous compute engines, that's eight instead of the Radeon R9 280/280X's two. According to AMD this can improve tessellation performance from two to four times, and facilitates effects that rely on GPU compute. In addition, the Radeon R9 285 inherits the 290 series' quad-shader layout, allowing four primitives to be rendered per clock cycle instead of two. Also note the CrossFire XDMA block, which provides the possibility of multi-card operation without a bridge connector.

 

[Mousemonkey]

Toms Hardware review

Despite what its specifications may suggest, Tonga is not a spin on the Tahiti GPU in the Radeon R9 280 and 280X. Rather, it is a new and condensed version of the Hawaii GPU in the Radeon R9 290 and 290X. Among other things this means it has four times the number of asynchronous compute engines, that's eight instead of the Radeon R9 280/280X's two. According to AMD this can improve tessellation performance from two to four times, and facilitates effects that rely on GPU compute. In addition, the Radeon R9 285 inherits the 290 series' quad-shader layout, allowing four primitives to be rendered per clock cycle instead of two. Also note the CrossFire XDMA block, which provides the possibility of multi-card operation without a bridge connector.

And when asked where that information comes from the response was a die size comparison, I don't pretend to know how GPU's are actually made but the similarities in specs and compute performance has me in the "tweaked 7950" camp.

 

[Mousemonkey]

I can see my house from here! :lol:

[:mousemonkey:2]

 

[beanoslim]

:lol:^lol

 

[Mousemonkey]

 

[logainofhades]

Toms Hardware review

Despite what its specifications may suggest, Tonga is not a spin on the Tahiti GPU in the Radeon R9 280 and 280X. Rather, it is a new and condensed version of the Hawaii GPU in the Radeon R9 290 and 290X. Among other things this means it has four times the number of asynchronous compute engines, that's eight instead of the Radeon R9 280/280X's two. According to AMD this can improve tessellation performance from two to four times, and facilitates effects that rely on GPU compute. In addition, the Radeon R9 285 inherits the 290 series' quad-shader layout, allowing four primitives to be rendered per clock cycle instead of two. Also note the CrossFire XDMA block, which provides the possibility of multi-card operation without a bridge connector.

Wasting your time with this. Been having this same argument, over on the Asus 950 review thread. No amount of proof is going to change his mind.

 

[Mousemonkey]

Toms Hardware review

Despite what its specifications may suggest, Tonga is not a spin on the Tahiti GPU in the Radeon R9 280 and 280X. Rather, it is a new and condensed version of the Hawaii GPU in the Radeon R9 290 and 290X. Among other things this means it has four times the number of asynchronous compute engines, that's eight instead of the Radeon R9 280/280X's two. According to AMD this can improve tessellation performance from two to four times, and facilitates effects that rely on GPU compute. In addition, the Radeon R9 285 inherits the 290 series' quad-shader layout, allowing four primitives to be rendered per clock cycle instead of two. Also note the CrossFire XDMA block, which provides the possibility of multi-card operation without a bridge connector.

Wasting your time with this. Been having this same argument, over on the Asus 950 review thread. No amount of proof is going to change his mind.

Until someone cracks open a 380 and a 7950 and shows me the silicon, no you won't change my mind. 😉

 

[logainofhades]

R9 380 without the heatsink.
http://tech.hexun.com/2015-07-01/177173481.html

HD 7950 without heatsink
http://www.legionhardware.com/articles_pages/his_7970_iceq_xsup2_ghz_edition_7950_iceq_xsup2_boost_clock,3.html

 

[Mousemonkey]

R9 380 without the heatsink.
http://tech.hexun.com/2015-07-01/177173481.html

HD 7950 without heatsink
http://www.legionhardware.com/articles_pages/his_7970_iceq_xsup2_ghz_edition_7950_iceq_xsup2_boost_clock,3.html

Got some shots of the INSIDE of the GPU so that we can see if it matches the specs?

 

[logainofhades]

Tonga die shot.
http://wccftech.com/amd-tonga-gpu-die-shot-features-384bit-memory-controller-fiji-die-size-approximated-560mm2/

Tahiti
http://www.anandtech.com/show/6210/amd-southern-islands-gpu-die-shots-released

 

[Mousemonkey]

Tonga die shot.
http://wccftech.com/amd-tonga-gpu-die-shot-features-384bit-memory-controller-fiji-die-size-approximated-560mm2/

That is a 384bit memory controller, the 380 has a 256bit controller does it not?

 

[logainofhades]

Tonga has both. Apple got the exclusive use of 384 bit Tonga, aka Tonga XT. The rest of us got stuck with the cut down Tonga, with the 256 bit controller. Even GPU-Z sees the 380 as Tonga.