Maxwells Dress to Impress
admin | January 4th, 2015 - 5:21 amFacts or Plausibilities?
1. The Fermi, a positively arcane GPU will vehemently violate its TDP to max out its megahertz.
2. The Kepler and almost every other GPU succeeding the crimson Cayman, are duty governed by their TDP and will never compromise it in pursuit of their core potential.
3. Allowing a TDP tied GPU to live in liquid luxury induces a dramatic environmental shift would return a lower rate of interest because the swell in temperature and power would incrementally and radically alter under the new conditions. Current would climb faster than Fahrenheit and the card’s allotted amperage would expire quicker than the patience of a chaffer awaiting the arrival of a three toed sloth on a Friday night branch bash.
A Parting Question Which May Have no Answer.
What value in real numerical terms and as a percentage relative to its embodied thermal threshold, must a graphics card’s TDP be before water, phase change, or any exotic cooling artistry can be of optimal benefit to its core speed? I anticipate a deluge of dependencies and accept the answer would differ in accordance with each GPU’s native attributes, though in many respects this would make for a far more intriguing case study. It could be conducted on any card whose operating conditions were constrained by its current account.
An Example
The Titan’s allocated wattage is 250W with a complementary but miserly overhead of 16 watts giving us a total 266W, or range of 106%. It’s temperature tolerance is 80 degrees by default but it will amend this to 95 under dire provocation and assuming its TDP isn’t violated first. This opens a window of 119%. The card’s core ticks over at 837mhz but with an amenable mix of beverages, boosts to over 1100mhz have been documented, a spectrum of roughly 124%.
From our experience with Afterburner, we’ve witnessed that even an air cooled Kepler exhausts its energy quotient prior to overheating. So what of our mysterious wattage warden if water were a factor. Brother “OV Max”. No doubt his strength would be sought and his orders observed. Could he in some way be neutralized, removed, expelled? Aren’t your idle hands itching?
What would the TDP and core frequency need to be before electron migration* (see footnote 1) posed a serious threat? In laymen s terms how fast could these things go and under how much steam before they began souring themselves to shreds
I profess to being a Titan adopter and am vividly aware of the creature’s innate conservatism, but please, no finger pointing. No cynical sneering or sniping. No cries of “Awww, he wantonly wasted his wages and won’t do his own dirty work”. I’m simply curious. Could not we add a third column to this page entitled “Desired TDP”?
What I’m really NOT saying is:
Greetings to all richer than creases and with more technical expertise than an F1 paddock, solicit your synergies of fanciful weaponry and in the noble name of the armchair nerd, perform some subtle acts of persuasion on a massive collection of contemporary graphics cards, and promptly publish some flavoursome facts…for you do it so well. Understood? I am in no way saying, implying or thinking that, even when I typed it just then, the thought never occurred, I solemnly swear…
I endeavoured to solve part of this riddle with a spate of rigorous research. Click here to be bored again.
Electron Migration (Footnote 1)
Electron migration is an phenomenon brought on by excessive heat or electricity surging through delicate components and causing electrons to deviate from their pathways. Over a varying period of time, depending on the severity of conditions, a progressive and permanent degeneration of silicon will occur, leading to a gradual decline in performance and stability and eventually, a spontaneous cessation of all useful functionality….DEATH.
It is the Nemesis of all over-clockers. A dour danger to RAM, CPUs, GPUs or any chip you can’t have with fish. An insidious assassin, baring a a grin as broad as that lighting up its unwitting usher, who’s spirit and senses are seduced by the enchanting endorphin elixir, further enriched by the ecstasy of an evidently productive pilgrimage for power and poise. A pernicious plague, impossible to diagnose until damage has been indelibly delivered.
Many associate it entirely with heat, though once this hazard has been nullified by, just to cite a recent and wholly coincidental example, water cooling, voltage will prove equally if not more fatal. It is precisely what TDP governors, core throttles and thermal protection circuits are programmed to mitigate. After all, who can name a company , no matter how illustrious that wants their gorgeous goods exploited in bad faith, brazenly broken, then returned under false pretences?
Tweaker: Yes, that’s right Mr. Etailer. I was running Furmark, Prime95, Folding@Home, exporting a 4k video file in Premier, updating my Steam library, backing up my FLACS, and half way through relishing a resplendent Blu-Ray remastering of all twenty four seasons of twenty four…with everything set to stock…
Mr Etailer: And how often do you do this?
Tweaker: Oh, whenever I’m not busy with Battlefield 4 bash in 5k plus Gsync.
Mr. Etailer: And how often do you do that?
Tweaker: Er, whenever I’m not doing all that other stuff.
Mr. Etailer: Be straight, what’s your average daily uptime?
Tweaker: It hasn’t been off since I built it last month, until a two hours ago, we had a power cut and then it wouldn’t post. It’s one of the video cards. I run 4 way SLI and tested each individually, the other three boot fine.
Mr. Etailer: Everything at stock you say?
Tweaker: Absolutely.
Mr Etailer: All speeds and voltages?
Tweaker: That’s right.
Mr. Etailer: It’s amazing you didn’t use any those great tuning apps, Afterburner, Precision. They’ve got tons of options to play with, could get a shed load more speed.
Tweaker: I’ve never heard anybody wink so loudly and I know, I’ve read the forums. They’re clocking the nuts off these things, quite a few hacked BIOSES out there now. Think they’ve busted the TDP without a hardware mod. I guess I don’t need the boost just now.
Mr. Etailer: Go to this thread on Anandtech, there’s a full OC guide and loads of stuff about water and phase change, about 60 pages of tips, found it dead useful, got mine an extra 200mhz .
Mr. Etailer: Ok sir, Emailed an RMA form, send it back and will chuck to the vendor, should have you’e replacement shipped direct in the next three days.
Vendor 1: Getting a load of these back. Think it might be design, fabrication, or something to do with the way our ingenious software seduces all whose sleep depends on five free frame per second. That Green Eyes, I almost pity him.
Vendor 2: Pity old Green Eyes?! I’d sooner pity a Nazi hag-fish . Trust me, if he ever found a way to to sell these things himself, we’d be gum on his great green galoshes. But the common touch is a rare gift, we have it, he doesn’t, and they all lived affluently ever after.
Giant Green Eyes: This is absurd, I shall not be unduly defiled in such frivolous fashion. My work was impeccable and I’m awash with more returns than ten thousand Walmart warehouses on Boxing Day. These chips were crisp, cut fresh from their wafer’s prime and binned to perfection, they have no flaws, they are no duds. Those vexatious vendors, they’re supposed to work alongside me, I employed them as my partners, to shield me from the shenanigans of treacherous tinkerers and their spurious claims. Satisfy the masses and no secrets for the super savy. Instead they devise and divulge ways of destroying my masterpieces to their avail and at my expense.
I must tolerate it no more and be learned of their techniques. I’ll extract these turgid, tawdry tools from my own quarry, subsume them in my drivers with an achingly alluring control panel none can resist. They will become a permanent part of my “experience”, a privilege accessible on my terms alone. Moreover, my next GPU will be greener than the fields of England and better protected than the Pope’s pinkies. No more perks. One day my clusters of Cudas will conquer, imperiously command every pixel in the heavens and render supreme.
Responses are currently closed, but you can trackback from your own site.