Monday, May 7th 2012
AMD Readies Radeon HD 7970 GHz Edition
AMD's Radeon HD 7970 could not hold on to the single-GPU performance crown for too long. It lost it to NVIDIA GeForce GTX 680, and the upcoming GeForce GTX 670 threatens to damage its competitiveness even further. Reports suggest that AMD is working on a new Tahiti-based graphics card SKU, the Radeon HD 7970 GHz Edition. AMD unveiled the "GHz Edition" moniker to denote SKUs that come with engine clock speed ≥1 GHz. The new HD 7970 GHz Edition will come with reference core clock speed of 1050 MHz.
AMD needn't tinker with memory clock speed, as it already has a 384-bit wide GDDR5 memory interface compared to the GeForce GTX 680 and its 256-bit memory bus width. Sources told Atomic PC that improved yields and manufacturing processes have benefitted Tahiti just as well as GK104, and ES Tahiti chips from the latest batches "easily" hit 1250 MHz core. These batches could make custom-design graphics cards with extremely high core clock speeds possible.
Sources:
Atomic PC, Engadget
AMD needn't tinker with memory clock speed, as it already has a 384-bit wide GDDR5 memory interface compared to the GeForce GTX 680 and its 256-bit memory bus width. Sources told Atomic PC that improved yields and manufacturing processes have benefitted Tahiti just as well as GK104, and ES Tahiti chips from the latest batches "easily" hit 1250 MHz core. These batches could make custom-design graphics cards with extremely high core clock speeds possible.
203 Comments on AMD Readies Radeon HD 7970 GHz Edition
my old 466 mhz intel celeron p2 based bought in 1999 can run ut1999 in software mode easily.
proving video cards were never really needed it just made pc gaming less accessibile.
Let's assume nVIDIA were to release a full GK110 die for the GeForce 600 series, they would have to work extra hard on the performance of the 700 series just to make it a viable upgrade from a GK110. Also assuming a GK110 gave us an additional 10-20% increase in performance over a GTX 680 now would be awesome, but not if the difference between a "GTX 685" and the GTX 780 was just 10% as a result. In fact, I could hear the whiners now. You have to remember they are already working on the 700 series, and such a change now, would be difficult. I don't think a lot of people think about that.
video cards=blurry shithole.
LMAO. This writer is a dreamer.
amd will bump the clockspeed from 925-1000, thats like 7-8% that puts its on par knowing how these tahiti chips scale very well when overclocked, much better the the keplers since they aready max out close to their limit due to dynamic clocking
also these new ghz tahitis will overclock better (up to 1250mhz easily) due to a new revision or something, meaning the ghz edition is a good 8% more efficient
and with 25% headroom with near perfect scaling tahiti is unbeatable
also note that we already saw mention from amd about their upcoming enhanced GCN to be 20% faster than currenct gcn cards so that puts it on par with gk110 if its 20% faster than gk104
amd and nvidia have never been this close in terms of performance/efficiency. i think the only factor that remains for buyers to decide is features and price.
OT but this is akin to a stepping change we with CPUs, where it essentially comes with a free over clock, more Hz for the same voltages, temps, and power consumption. Heck, it may even run cooler. I hope that they don't charge more for it and just phase out the old 7970.
GK110 will debut in just three days, but this is the part that targets the HPC i.e. GPGPU community. We were told that the number of pre-orders for Kepler-based Tesla cards (Tesla 3000 Series) should exceed the overall number of Teslas shipped so far (over 150,000 units sold).
Read more: vr-zone.com/articles/how-the-geforce-gtx-690-is-a-prime-example-of-nvidia-reshaped-/15786.html#ixzz1uGMCEQd3
1.AMD released the 7970 cards first. They didn't clock it according to its potential. Most 7970s easily reach 1200Mhz which is a 30% boost from the stock clock.
2. Nvidia saw an opportunity to sandbag. They increased the clocks of GK104 more than they originally intended,and made some driver optimization for the current games so that it'll beat 7970 by a small margin. They slapped a gtx680 sticker on it to make it look like a high end card. The gk104 doesn't have enough fixed function compute-accelerator blocks since it was not meant to be a high end card.As a result, it takes less die area and consumes less power at the cost of GPGPU performance.
3. AMD finally decided to clock 7970 according to it's potential. But it might be too little too late. Since they cant strip away the excess silicon that accelerates the compute tasks, it'll take more power than the 680.
BTW: How do you know GK110 is going to be 20% faster than GK104?....or is this a story that starts out "In a perfect AMD world..."
"The Radeon HD 7970 has a wider overclockable range than the GeForce GTX 680.
Consider this, the default clock speed on the Radeon HD 7970 is 925MHz. We are easily getting overclocks to 1.2GHz out of the Radeon HD 7970, and even higher in some cases. That is between a 275MHz-300MHz overclock achievable from the Radeon HD 7970. With the GeForce GTX 680 however, we are seeing an overall smaller overclock because NVIDIA has already clocked the GTX 680 closer to its maximum potential by default"
GTX 680: Max OC 22%... Scaling: BF3 14.9%, Batman:AC 14.1%, Deus Ex 16.6%, Skyrim 5%...average 12.7% ( 0.58% gain per 1% OC)
HD 7970: Max OC 36%...Scaling: BF3 13.7%, Batman:AC 30.4%, Deus Ex 28.6%, Skyrim 20.9%...average 23.4% ( 0.65% gain per 1% OC)
Slight win for the HD 7970 there...
Second half of the equation...
GTX 680 power usage : Average 358w (OC by 22%), 339.5w (stock) = 0.84w increase per 1% OC
HD 7970 power usage: Average 540w (OC by 38%), 464w (stock) = 2w increase per 1% OC (since [H] neglected to include the 7970's OC'ed power consumption in comparison to the 680 :rolleyes: )
If you're talking performance only, then yes, the HD 7970 will certainly come out ahead since it's base core clock is effectively underclocked- basically the same scenario as measuring OC percentage for the GTX 560 Ti (and GTX 460 before it).
Since OC'ing tends to be limited by voltage and thus heat more often than not, I'd tend to take that into consideration. It's also not beyond the realms of possibility that GTX 600 BIOS will in future allow for a greater flexibility in OC potential- there's obviously some untapped potential...which I'm guessing would even things up- the rationale being that with cards closer in OC percentage, the disparity in results would likely contract judging by reviews based on like-for-like OC ( i.e this TT review. Both cards OC'ed by ~22-23%. The GTX 680 scales better in 6 of 8 games (admittedly a fair number are Nvidia-centric but that shouldn't work against the 7970 in scaling)
Thinking about it's not all that price crazy as the ATI 9800 was in this kinda price range when that came out many moons ago.
My personal viewpoint is that raising the clocks from 925 to 1050 is more of a stunt to get the 7970 into another round of reviews and back into the spotlight. As has been pointed out ad nauseum, many 7970's already clock to (and past) 1050...indeed, I've already posted a link to a review that has cards clocked at 1000, 1050, 1070 and 1120...and here's the kicker...they are near enough the same price as the reference 925M card
*even their crown (amd) just only a small period of time not so long ago before nv took back :)*
www.techpowerup.com/forums/showthread.php?p=2622936#post2622936
www.techpowerup.com/forums/showthread.php?p=2622978#post2622978
TSMC is now giving AMD chips the way thier engineers designed and where told TSMC would deliver from day one (back OCt/Nov) for the orginal release (Remember TMSC was all 28Nm is fully ready for prime time, not). The 7970 was always a 1Ghz 250W TDP design, but TSMC was choking the monkey, finally they shut-down and fixed the process. Figure since say mid-Feb providing full fledged "Tahitis", while then AMD working on this, then started dropping the price to move that old product out.
I'd like to see the current 7950 spec cards renamed as 7930; the 7970 (@925Mhz) become a 7950, and the real 1Ghz be the only 7970 from here on out! Then as the market evolves use the bins of geldings that TMSC messed-up on that early Tahiti production as 7890's and those show for say $280 by end of summer.
Now we what for what a GTX670 or whatever is to show has in store.
" Do you think HD 7970 GHz Edition can make HD 7970 attractive again? "
The 7970 was never unattractive in my opinion, it was just priced wrong from the get go.
I think the GHz edition will be a nice welcome if its $449. I still think $469 is too much for a plain 7970. Fact is, the 680 does beat the 7970 in the majority of the games that actually matter (BF3, ding ding ding), so asking $30 less isn't enough. I think $50 less would make the 7970 the perfectly priced card. When the 670's launch, I have a feeling they will perform RIGHT under the 7970 but cost a good $50-60 less than the cheapest 7970. It would be in AMD's best interest to not bother releasing a "GHz" SKU and focus on strategic pricing, like they do with their processors.
I had/have both a 7970 and a GTX 680. Both are fantastic cards. However, I do like the 680 better. On the contrary, I like AMD's driver interface MUCH more than Nvidia's. They each have their pros and cons, but this time around, the 680 is the superior card. This is FACT, not fascinated fiction. It does indeed beat a reference 7970 in almost all benchmarks. It may not be a huge amount, but its enough to matter. Factor in the $549 MSRP vs 680 $499 MSRP, and its pretty obvious what the better card is. 7970 GHz and 7970 need to be $449 and $429 to make most people give a turd.
But if you don't do anything GPGPU then yeah the 680 probably calls to you more.
I just want accurate numbers. Nvidia and Ati, don't pay me to advertise. I just had a 5850 but I want to try the 680.. green or red? idc.. honestly..
This "out of stock" issue, with the 6 series, is f'n dumb though..
To me, it simply makes sense, to want Ati, to have a card, as good or better, than Nvidias line.
Consumer wins.. That's all I care about..
Amazes me, how worked up, people get over this stuff.
I hope the new line, kicks ass and everyone who has a card, they pay top dollar for, enjoys it. Preferrably, without coming back, the the forums, to say "ahahaha your drivers are messed up", or something equally rude..
7970 is still, a great card, at an attrative price.
:toast: