NVIDIA's GeForce GTX Titan, Part 1: Titan For Gaming, Titan For Compute
by Ryan Smith on February 19, 2013 9:01 AM ESTGPU Boost 2.0: Temperature Based Boosting
With the Kepler family NVIDIA introduced their GPU Boost functionality. Present on the desktop GTX 660 and above, boost allows NVIDIA’s GPUs to turbo up to frequencies above their base clock so long as there is sufficient power headroom to operate at those higher clockspeeds and the voltages they require. Boost, like turbo and other implementations, is essentially a form of performance min-maxing, allowing GPUs to offer higher clockspeeds for lighter workloads while still staying within their absolute TDP limits.
With the first iteration of GPU Boost, GPU Boost was based almost entirely around power considerations. With the exception of an automatic 1 bin (13MHz) step down in high temperatures to compensate for increased power consumption, whether GPU Boost could boost and by how much depended on how much power headroom was available. So long as there was headroom, GPU Boost could boost up to its maximum boost bin and voltage.
For Titan, GPU Boost has undergone a small but important change that has significant ramifications to how GPU Boost works, and how much it boosts by. And that change is that with GPU Boost 2, NVIDIA has essentially moved on from a power-based boost system to a temperature-based boost system. Or perhaps more precisely, a system that is predominantly temperature based but is also capable of taking power into account.
When it came to GPU Boost 1, its greatest weakness as explained by NVIDIA is that it essentially made conservative assumptions about temperatures and the interplay between high temperatures and high voltages in order keep from seriously impacting silicon longevity. The end result being that NVIDIA was picking boost bin voltages based on the worst case temperatures, which meant those conservative assumptions about temperatures translated into conservative voltages.
So how does a temperature based system fix this? By better mapping the relationship between voltage, temperature, and reliability, NVIDIA can allow for higher voltages – and hence higher clockspeeds – by being able to finely control which boost bin is hit based on temperature. As temperatures start ramping up, NVIDIA can ramp down the boost bins until an equilibrium is reached.
Of course total power consumption is still a technical concern here, though much less so. Technically NVIDIA is watching both the temperature and the power consumption and clamping down when either is hit. But since GPU Boost 2 does away with the concept of separate power targets – sticking solely with the TDP instead – in the design of Titan there’s quite a bit more room for boosting thanks to the fact that it can keep on boosting right up until the point it hits the 250W TDP limit. Our Titan sample can boost its clockspeed by up to 19% (837MHz to 992MHz), whereas our GTX 680 sample could only boost by 10% (1006MHz to 1110MHz).
Ultimately however whether GPU Boost 2 is power sensitive is actually a control panel setting, meaning that power sensitivity can be disabled. By default GPU Boost will monitor both temperature and power, but 3rd party overclocking utilities such as EVGA Precision X can prioritize temperature over power, at which point GPU Boost 2 can actually ignore TDP to a certain extent to focus on power. So if nothing else there’s quite a bit more flexibility with GPU Boost 2 than there was with GPU Boost 1.
Unfortunately because GPU Boost 2 is only implemented in Titan it’s hard to evaluate just how much “better” this is in any quantities sense. We will be able to present specific Titan numbers on Thursday, but other than saying that our Titan maxed out at 992MHz at its highest boost bin of 1.162v, we can’t directly compare it to how the GTX 680 handled things.
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ehpexs - Tuesday, February 19, 2013 - link
Great card, too rich for my blood though. For those who can afford one or two (or four) enjoy. I'll stick to my $550 pair of 7950s.Wreckage - Tuesday, February 19, 2013 - link
Remember the 7970's were $1100 at launch.TheCrackLing - Tuesday, February 19, 2013 - link
Then how did I manage to pay only $1150 for 2 at launch?The 7970s were around $550-600 at launch, nowhere near $1100.
Wreckage - Tuesday, February 19, 2013 - link
I was (obviously) responding to his statement "pair of 7950s". If I could edit my post I suppose I could change it to CF and up the price $50. Either way Titan is in line with AMD pricing.Stuka87 - Tuesday, February 19, 2013 - link
So according to your logic, we can expect to pay 2k for cards that are twice as fast as the titan in the future?just4U - Tuesday, February 19, 2013 - link
Well... I recall paying almost 800 for a Geforce3 at launch. So hmmm.. i don't think the high end has gone up much (if at all..) over the past decade. Sometimes it comes down if Nvidia/Amd are duking it out on pricing but overall it's remainded fairly consistant.JonnyDough - Wednesday, February 20, 2013 - link
And it shouldn't. These cards get cheaper and cheaper for them to produce. Their profit margins just continue to climb. In other words, we're getting poorer and poorer in comparison to the upper class but nobody is taking notice...game on, until you can't afford to live.shompa - Wednesday, February 20, 2013 - link
Cheaper and cheaper to produce? How do you know that? Do you have wafer prices from TSMC and Global foundries? Or are you like many uneducated people who believes everything gets automatic cheaper with smaller process technology? *hint* Wafer prices goes up for each shrink. Thats why the majority of all microprocessors are manufactured at 65-90nm!Look also at AMDs profit margins. Oh... They are loosing money. Guess they have zero profit.
To many uneducated people on the internet!
rupert3k - Saturday, June 1, 2013 - link
Is that tone really necessary?TheJian - Wednesday, February 20, 2013 - link
ROFL. AMD lost 1.18B this last year and NV only made 725mil (with a 300mil Intel payment).NV made ~800mil in FY07 and lost money in 08 & 09 FY's lost 100mil, '10 made 235, '11 530m, last year finally hitting 725...It's taken them 5yrs to come close to what they USED TO MAKE.
You apparently don't read balance sheets or earnings reports.
For AMD I'll just give you the sum of the last 5-6. They lost a total of 5.1B roughly...THEY HAVEN'T MADE MONEY over the last 5 years they lost their fabs, wrote down ATI, laid off 30% of employees etc...They just lost 1.18B last year for christ's sake. You'd better PRAY amd stops giving away games and raises the price of their gpus/cpus before they go bankrupt. At the rate they are burning cash now they will be out of funding by the end of the year. Do you understand that? 5 years=5B+ in losses. Read a balance sheet once in a while before you say junk like this.
Also note, just looking at NV, they are getting ~300mil per year right now from INTC. So they aren't even making what I said! AMD's margins are at 15%! NV 53%. Regardless of what you think of the price, neither is sticking it to you compared to the performance gains they are giving you every year and what it costs to get them. AMD, looking at the entire life of the company (I'm not going to actually do it), I don't think has actually made a $1 profit...LOL. They're gouging you? Feel free to pull up every year of earnings they have had since existence. I think you'll find they have actually LOST money.
http://investing.money.msn.com/investments/financi...
AMD's 10yr, has lost at least a few billion with a quick look. Is this computing in your head yet? In the last 10yrs AMD total has lost ~3-4Billion dollars. They aren't making SQUAT! If it weren't for large backers they'd be bankrupt ages ago. They were just downgraded by Fitch TWO grades to JUNK BOND status (just like USA two downgrades since obama took office)...In financial terms, it means NOT INVESTMENT GRADE.
They are getting killed by INTC/NVDA. Now a cadre of a good 5 players are entering their cpu/server business. They will continue to lose money and be lucky to make it to 2014 without yet another borrowing fiasco and this time and even higher rates of interest due to junk status.
NVDA finally hit record cash/revenue this year (and margins, but by a decimal, helped by Intel 300mil), after 5 years! What margins are you talking about? While a FAR better company than AMD, gaining share, entering new markets etc, NV isn't getting RICH either. Their future looks bright (AMD looks bankrupt or bought by 2014 without help), but unless you can prove otherwise they are in no way ripping you off. BOTH companies should be charging $50+ more on every card under $500. Granted the high end is what it is (middle income people don't drive Lamborghini's either), but the low end is costing them both with their current war that's been on for ~5yrs.
AMD has 1B in cash. If they lose another 1B this year that's gone, how do you think they run the company with no cash? No money coming from consoles will go on the books until the end of the year (and those sales won't be phenomenal IMHO, look at vita/3ds/wiiu failures and cuts), and mobile won't bring them a dime until mid 2014 at best on the books with no ARM until then. Are you doing the math here?
Get a better job, or quit buying things your budget can't afford! While your at it vote in a president who is PRO BUSINESS and ANTI TAX/SPEND. Start voting for people who CUT GOVT SPENDING & TAXES, then maybe you'll pay a little less in taxes, and more of us we'll be working to cover it because guess what happens when you cut taxes? (see Coolidge presidency, or Reagan, Coolidge was Reagan's hero...LOL...well duh - heard of the ROARING 20's?). Companies hire workers, and people start small businesses...Which causes...Wait for it...REVENUE to come in to cover the tax cuts! It should go without saying you need to CUT spending also when doing this for it to work (they keep kicking the can down the road today, again next month).
Guess what came after the roaring 20's? A TAX AND SPENDER! What do they create? THE DEPRESSION! LOL. What is Obama creating? The depression v2.0 (well, amped up to 16.5 trillion levels I guess depression v9.9?).
http://www.calvin-coolidge.org/coolidge-administra...
He didn't bail out flood victims, didn't bail out farmers (piss off), not even his hometown state when they had a natural disaster! He definitely would have kicked out every one of the 20mil illegals YOU & I are about to pay for medically etc (actually you're already paying, just not getting the service, and the high risk fund is already broke...LOL). When you wonder why your medical is so high in 2015 and why service sucks, you can thank your president and the illegal aliens. Coolidge vetoed every spending bill that was pork too! NO PORK passed his plate. That's how you get the DEBT DOWN.
https://en.wikipedia.org/wiki/Herbert_Hoover
1929, 8 months later depression...LOL. How does he respond, govt works projects (spend, govt growth) etc...FAILURE. Sound familiar? "SHOVEL READY" anybody?...ROFL. He raised the top tax bracket from 25-63%...ROFL. Sound familiar? Raised taxes on Business! Sound familiar?
"Hoover's defeat in the 1932 election was caused primarily by his failure to end the downward economic spiral, although his support for strong enforcement of prohibition was also a significant factor". This country just voted in Hoover's big brother TWICE!
So take away your money, take away your rights (no drinking for you!) and spend spend spend, tax tax tax...Sound familiar? Obama attacking guns, our constitution, spying on everyone, raising taxes, killing business, taxing rich who create jobs (upping the brackets) unemployment everywhere...See the problem?
Get a better job, or vote your govt out. Those are your options...LOL. Your graphics card price is NOT the problem and even if they give it to you FREE you won't live a better life...ROFLMAO
$20 says you voted obama.
http://www.calvin-coolidge.org/president-calvin-co...
"He was concerned about all Americans, especially the working class man and woman. He wanted them to be free, independent, and self-reliant. Like Jefferson, he wanted them to be able to rise as far as their abilities permitted."
The exact opposite of WELFARE obama. "you didn't build that"
A few more for ya: "He never sought to make history for himself."... "his conservative, Constitution-based principles of government". His nickname was SILENT CALVIN.
Obama's on TV every chance he gets. Obama's nickname? THE WELFARE PRESIDENT. He golfed with tiger woods Sunday...ROFL spent 8hrs with Tiger's coach first, golfed 18 with Tiger who left, obama went another 9...LOL. No time to fix the debt though. Obama believes in destroying the constitution & your ability to be SELF RELIANT. If you rise too high, He'll have to take your money and re-distribute it...LOL. It's YOUR job to make a better life for yourself and the govt's job to get out of your way. I clearly see you think the rich OWE you and desire govt intervention to get what you think they owe you. I want to game on, but I keep having to pay for PEOPLE like you who won't look to themselves to improve their lives. :(
Reality bites eh? ;)