They are all reference cards, the are identical apart from the stickers (and Asus flashes a custom bios). If you're suggesting that somehow the sticker has any bearing on the quality of the component...
And its not increased workload thats causing the heat its the fact that the card doesn't downclock or drop its voltages. If my laptop with Intel integrated graphics can push 2 monitors fine then the increased workload for an HD6950 is negligible.
Fact is the issue happens and it happens with cards across vendors, you blaming 'cheap' components is not helping.
Ohhhh NO!.. Absolutely not... Reference just means design. NOT component usage. It says they will have a specific farad capacitor here, ohms of resistor there.. etc. NOT exactly which exact capacitor, resistor, etc to use for the job. Or which bearings to use in their fans. That's a HUGE amount of difference! Actually, they can not force the manufacturers to go out and buy this specific part from this specific company for their builds, that would be against the law. I do believe Intel tried to do similar practices many times and got slapped for it repeatedly. But the only way for a company to force a product to be made exactly one specific way is to make it themselves.
Just like Generic Drugs. They just have to follow specific guidelines and rules but not the exact formula. You're ignoring this fact is not going to make it better. There ARE cheap components out there and there are companies that pay a premium for the best parts the manufacturer can deliver. They can even be the exact same parts, just the best of the best picked for the premium company, the rest (repaired-to-work parts and not-quite-perfect but fully otherwise functional parts) go to the budget companies. So they can even have the exact same model/type numbers on them but be truly completely different parts.
Ask anyone in the electronics manufacturing or silicon industry if you don't want to believe me. This is extremely common practice. I know for a fact the top companies like Intel/Nvidia/AMD does it (I used to work for AMD directly in relation to the bin-out process, also called the 'sort' process). And the smaller-part venders have similar quality validation processes.
Heck for that matter, most of your parts are just not-fully-functional other parts. Like say a tri-core chip from AMD. It's really just a failed quad-core where one core failed validation. So they turn it off and mark it as a tri-core. Or a 3.2Ghz part just wasn't quite stable enough for them to comfortably stamp it as aq 3.4Ghz part. But it's the exact same part. All another example of the bin-out process, just in a slightly different form. But even in say the memory (which my current company makes tons of: Spansion), there can be tons of levels of quality output for the same exact chip of memory.
You can see this represented partially in RAM chips even with their CAS speed capabilities. The chips will be manufactured exactly the same but this chip tests better than that one so it will end up on a CAS 6 stick while the poorer one is limited to a CAS 9 use only... Or, to be a bit more accurate; this company buys only our top-shelf chips to use on their gaming sticks while the budget company buys them all and tries to force them higher than we recommend. Exact same part but not necessarily capable of the exact same performance.
So yes, absolutely positively and without question, there are quality components and budget components, even if they have the exact same part number. And if you don't want to take my word on it; ask anyone in the industry. These are standard practices following specifically laid out procedures and standards throughout the world. We even have parts we label as (Well, it's a code name but it means basically) 'fully functional but...' which means they tested just fine but had a questionable process in manufacturing somewhere along the line. These lots never go to the top-tier clients. They pay extra for the guarantee that they get the best of the best...
So don't fool yourself that the budget cards are exactly the same as a quality card just because they are both a 'reference' design. That just means they follow the reference design, not exactly what parts they use or what grade of those parts they purchased to use. Even two cards made with the exact same types of parts can be completely different from the bin-out process and specific part selection.