Tuesday, September 25, 2012

Samsung SSD 840 Pro caters to speed seekers with faster random access

Source: http://www.engadget.com/2012/09/24/samsung-ssd-840-pro-caters-to-speed-seekers-with-faster-random-access/

Samsung SSD 840 Pro caters to speed seekers with 100,000IOPS, faster writes

It's difficult to thrive in the solid-state drive world. Unless you've got just the right controller and flash memory, most performance-minded PC users will rarely give you a second glance. Samsung muscled its way into that narrow view with the SSD 830 last year; it intends to lock our attention with the new SSD 840 and SSD 840 Pro. The Pro's 520MB/s and 450MB/s sequential read and write speeds are only modest bumps over the 830, but they don't tell the whole story of just how fast it gets. The upgraded MDX controller boosts the random read access to a nicely rounded 100,000IOPS, and random writes have more than doubled to 78,000IOPS or 90,000IOPS, depending on who you ask and what drive you use. The improved performance in either direction is a useful boost to on-the-ground performance, as both AnandTech and Storage Review will tell you. We're waiting on details of the ordinary triple level cell-based 840 model beyond its 120GB, 250GB and 500GB capacities, although there won't be an enormous premium for the multi-level cell 840 Pro over existing drives when it arrives in mid-October -- the flagship line should start at $100 for a basic 64GB drive, and peak at $600 for the ultimate 512GB version.

Filed under:

Samsung SSD 840 Pro caters to speed seekers with faster random access ! original ly appeared on Engadget on Mon, 24 Sep 2012 21:16:00 EDT. Please see our terms for use of feeds.

Permalink AnandTech, Storage Review  |  sourceSamsung Tomorrow  | Email this | Comments

Read More...

Samsung's Smart EX2F point-and-shoot now on sale for $500

Source: http://www.engadget.com/2012/09/25/samsung-smart-ex2f-point-and-shoot-on-sale/

Samsung's Smart EX2F pointandshoot now on sale for $500

It has taken Samsung a wee bit longer than expected, but the Korean outfit announced earlier that its intelligent, WiFi-equipped EX2F point-and-shoot is finally hitting US store shelves today. And while availability itself comes a few weeks behind schedule, it gave Samsung plenty of time to reconsider the initial $550 MSRP tag it gave when the camera was first unveiled, which means that $500 gets you in the "smart" shooter game with a 3-inch AMOLED display, 12.4-megapixel CMOS sensor and, of course, the lovely f/1.4-2.7 (24-79mm) lens. Still trying to figure out whether this is indeed the one for you? Then be sure to peruse over our own hands-on to help you decide if it's worthy of your hard-earned cash.

Continue reading Samsung's Smart EX2F point-and-shoot now on sale for $500

Filed under: ,

Samsung's Smart EX2F point-and-shoot now on sale for $500 originally appeared on Engadget on Tue, 25 Sep 2012 00:53:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceSamsung  | Email this | Comments

Read More...

Pantech Vega R3 packs Snapdragon S4 Pro, 5.3-inch screen into one hand

Source: http://www.engadget.com/2012/09/25/pantech-vega-r3-packs-s4-pro-5-3-inch-screen-into-one-hand/

Pantech Vega R3 packs S4 Pro, 53inch screen into one hand

If there's one thing that defines the phablet, it's not hand portability -- what's on the market usually demands something of a stretch. Pantech wants to keep our grip at least slightly in check through its imminent Vega R3. The Android phone's 5.3-inch, IPS-based LCD isn't what we'd call modest, but it's framed by an extra-thin bezel that Pantech claims is still comfortable in one hand. The R3 will be powerful, no matter how you hold it. It touts the the same quad-core Snapdragon S4 Pro we just saw in the LG Optimus G along with 2GB of RAM, a 13-megapixel camera and a 2,600mAh battery that can top up 100 minutes. South Koreans can pick up the Vega R3 from one of their three major carriers on September 25th. Sadly, we're not expecting an American variant of the design given an emphasis on cheaper and smaller Pantech models in the US.

Continue reading Pantech Vega R3 packs Snapdragon S4 Pro, 5.3-inch screen into one hand

Filed under: ,

Pantech Vega R3 packs Snapdragon S4 Pro, 5.3-inch screen into one hand originally appeared on Engadget on Tue, 25 Sep 2012 04:43:00 EDT. Please see our terms for use of feeds.

Permalink Talk Android  |  sourceAndroid Authority  | Email this | Comments

Read More...

Sorry Investors, You Can't Make More Money Just By Taking More Risk

Source: http://www.businessinsider.com/volatility-risk-premium-2012-9

One of the more alluring investor myths is that you can get paid a premium for having the patience to withstand risk. It's like getting paid more for working at a smelly job rather than a job surrounded by wonderful smells: in equilibrium, the bad thing no one likes (risk, smells) are compensated via an extra return. You can formalize this and it forms one of the pillars of finance under the rubric of 'risk premiums'.

 Yet, as I point out in my book The Missing Risk Premium, to a first approximation the risk premium has a negative sign. Using Popperian logic, the profession should have moved along a long time ago, but it persists for several interesting reasons that I discuss in my book (eg, it's beautiful if true, it's a key fallacious assumption that underlies so many other threads, etc.).

Now there's PIMCO writing about how to capture the 'Volatility Risk Premium' by selling vol. They correctly note that on average, implied volatilities are a couple percentage points higher than actual volatilities, so 2% higher. Thus, it seems clear that writing options, collecting premium on 22% and paying on 20% generates a straightforward premium.

 Consider what may appear to be a great example of their argument: the VXX. it has lost 97.8% of its value since inception in January 2009, while the VIX has only declined by 66.8%. Win for risk-taking volatility sellers!

image

This phenomenal extra 8% annualized negative return drag (underperformance of VXX vs. VIX) comes from two sources.  One is th! e fact t he VXX tries to match the daily return, and in sample that have negative autocorrelation, this strategy will underperform its benchmark over long periods.  This is best shown by this piece by Cheng and Madhavan and Barclays.  The other is the contango in this market, so that trying to maintain a fixed forward volatility position causes one to lose money riding down the VIX futures curve which has been very steeply sloped since the inception of this stupid product. 

That gets to the bottom line, which is that the premium of going short the VXX has little to do with risk--it's negative return is much bigger than any estimate of the equity risk premium--but rather technical issues within the contract.  You can try to capture this by trading yourself or becoming a short seller, but this highlights that to capture a return premium you need to actively educate yourself and put on positions that take at least a little work (eg, shorting the VXX is more complicated that simply going long the VXX), not passively invest in a fund that has 'risk' and does this all for you. 

If a fund purports to give you a risk premium for simply giving them money it's a classic sucker's pitch.  Consider that after 50 years there's no agreement on what the risk factor is: originally it was a beta with the broad market, now it's a covariance with something, though interestingly things correlated with well-known risk factors like 'size' or 'value' don't exist outside of the characteristic-based portfolios that actually create these factors.  That is, if you find a currency, or low book equity/market equity stock that has a high value loading, these assets don't generate higher-than-average returns as theory suggests they should. So, if you magically discovered the risk that underlies risk premiums, it would be in your best interest ! to keep it to yourself, not give it away to investors, and call it alpha, because no one would know.

It simply isn't plausible people are finding risk premiums and giving this to passive investors, and naive investing is just what underlies all those fools going long the VXX in hopes of making money off Black Swans. While selling vol (shorting the VXX) is in a certain way selling Black Swans, the similarity is that some 30k foot metric like improbability is something you get paid for, whether you are buying or selling it.  You have to roll up your sleeve and earn it, taking out those pesky middle-men. 

Please follow Money Game on Twitter and Facebook.

Join the conversation about this story »



Read More...

Monday, September 24, 2012

Apple TV update 5.1 brings shared photo streams and iTunes account swapping, available now

Source: http://www.engadget.com/2012/09/24/apple-tv-update-5.1/

Apple TVs of the second and third-gen variety are getting update 5.1 today, which brings two long-awaited features. Both shared photo streaming and iTunes account switching are now part of Apple's set-top box -- the combination of those two finally freeing parents from the potential nightmare of discovering their child's "not safe for parents" photo streams, of course. The update, spotted by MacRumors, also adds some new AirPlay functionality, enabling users to "send audio content from Apple TV to AirPlay-enabled speakers and devices (including AirPort Express and other Apple TVs)." Beyond those two biggies, however, the rest of the update is rather nuts and bolts oriented -- head below for the full list.

Continue reading Apple TV update 5.1 brings shared photo streams and iTunes account swapping, available now

Filed under: , ,

Apple TV update 5.1 brings shared photo streams and iTunes account swapping, available now originally appeared on Engadget on Mon, 24 Sep 2012 14:12:00 EDT. Please see our terms for use of feeds.

Permalink MacRumors, The Next Web  |  sourceApple  | Email this | Comments

Read More...