Right, but the point I'm trying to make is that the chance of getting 1100 on a 7950 is not the same as getting 1300-1400 on a 760 which you stated. If you want to say that the submissions for HWBot are suicide clocks than you also have to say the same thing about the 760s. If you think a 7950@1100 is a golden sample than you must believe a 760@1210 is a golden sample as well.
I'm not sure why you think 1100 is improbable on a 7950. Go look at the 7950 overclocking thread. Plenty of people running 1200+ for gaming. I know it's not the same thing but my reference XFX 7970 is game stable at 1225Mhz using the stock cooler (50% fan speed). The 7000 series cards have proven to be great overclockers.
I'm saying the people doing proper Nvidia Geforce 6xx and 7xx overclocking (Bios Modding) are the definite minority, heavily skewing the results downwards. If you look at the 770 thread, you'll see that 1400 boost clocks are basically standard. EVGA also said in the 760 thread that most 760s they tested get 1300 boost clocks.
The reason for the huge disparity between that and the stable 7970 and 7950 clocks is that Tahiti has an extremely weak ROP/IMC implementation, which requires about .1-.2 extra voltage for vcore to keep them stable under maximum load.
What this means is you can either get high core clocks OR high memory clocks (if you have well binned GDDR5)
On top of that, many 7950s have low binned GDDR5 to start with, making that choice for the end user.
On top of that, many 7950s have extremely low ASIC quality, mostly 40-50%, with some models going 60-70% maximum.
Only select 7950 models have both high binned GDDR5 as well as high binned ASICs, as well as good voltage regulation, as well as good cooling solution.
Sadly the MSI TwinFrozr III >>can<< have high ASIC quality (about 50% of them do), and have ok voltage regulation, however have poor VRM cooling, and barely adequate general cooling performance (The TwinFrozr III is really a 230w cooler).
The only card I have seen so far in 7950 and 7970 that have all their ducks lined up is the HIS IceQ X^2 7950 and 7970.
The problem is that the 7950 model of that is extremely overpriced and the 7970 model of that is not price competitive with other models either.
And I make sure to specify manufacturer level of stress testing, as in every single thing you could possibly do to stress the card, no holds barred.
An unstable cards is infinitely less useful than a slightly slower, 100% stable card in actual use.
People glossing over these very important facts are painting an extremely skewed picture of the situation.
In comparison, the Windforce 3x REV2.0 760 has superior cooling to every single 7950 and 7970 currently purchasable for comparable price (and arguably superior cooling to every single one of them using conventional air cooling). This allows the bottleneck of clocks to be shifted back to the artificial TDP limit as well as the artificial Voltage limit, both easily to circumvent with simple Bios Mod tools.
Here's an anecdote from myself.
I can do 1100 core 1700 gddr5 at 1.050 set voltage on my Sapphire Dual-X 7970 and be stable in every non ROP intensive task. However, once ROPs are stressed to the max, the card requires 1.156 set voltage.
Another anecdote.
I can do 1125 core 1700 gddr5 at 1.188 set voltage on my Sapphire Dual-X 7950 with moderate ROP load, however, I need to set voltage at 1.256v for maximum stressed ROPs. However, this voltage produces far too high temperatures at maximum GPU, ROP, and VRM stress, making 1125 core 1700 gddr5 not truly stable.
This is why I have been harping on AMD getting something rivaling the Titan cooling solution and mirroring Nvidia's Greenlight program for cooling solutions.
If I had Titan coolers on my Sapphire 7970 and 7950 I would be able to clock far higher 100% stable at 100% GPU/ROP/VRM load as temperatures in Crossfire configuration would not skyrocket as high as it does because of the fact that the stock blower configuration of 7970 and 7950 is atrociously bad as well as the fact that to get good cooling you are required to go open air cooling, which is terrible if you have 3+ cards since no matter what you do, you will only have 1 slot at most between each card.
This also has resulted in the fact that I literally cannot do quadfire with my 4 cards, since each card (except for the bottom one) would overheat at any reasonable load even at manufacturer default settings.
Note this is with possibly the best possible case cooling solution on the market currently for air cooling.
I have every single fan slot in my Antec 1100 case occupied with Antec Tri-cool fans at high setting (except for the 2 recirculating locations in the interior) in the configuration that tested as lowest temperatures for GPUs (Took me a while).