sexta-feira, 31 de maio de 2013

Forget 4K, NHK shows off compact 8K TV camera before Japanese broadcast trials

URL: http://www.pocket-lint.com/news/121404-forget-4k-nhk-shows-off-compact-8k-tv-camera-before-japanese-broadcast-trials


Japanese broadcaster and technology innovator NHK plans to trial 8K Super Hi-Vision TV in 2016, and to prepare has built a compact, more-easily managed camera that can capture in the double 4K resolution. The company will use a custom-built H.265 (HEVC)...

Asus brings 4K to your desktop with massive 31.5” 3840×2160 monitor

URL: http://arstechnica.com/gadgets/2013/05/asus-brings-4k-to-your-desktop-with-massive-31-5-3840x2160-monitor/


The Asus PQ321.

Asus has just announced the cure for the common 20-something-inch 1080p display: a small TV-sized 31.5-inch monitor with a massive resolution of 3840×2160. Engadget reports that the Asus PQ321 display, which uses IGZO technology to reduce energy usage and thickness, includes DisplayPort and dual-HDMI input, integrated speakers, and an adjustable stand.

Not just any graphics hardware will be able to drive such a high-resolution display, however, and we'd like to clear up some of the misinformation out there that Asus' announcement has prompted. Most midrange and high-end cards from Nvidia's GeForce 600 family and AMD Radeon HD 6000 and 7000 series should support 4K resolutions over HDMI and DisplayPort, at least, owing to their support of HDMI 1.4 and DisplayPort 1.2. Both of these interfaces should provide sufficient bandwidth to drive a 4K display, though in some cases at a refresh rate of only 30Hz rather than the more common 60Hz.

Integrated graphics are a bit more complicated. Intel's current HD 4000 graphics can support 4K output with the most recent graphics drivers, but only on laptops and motherboards with a pair of DisplayPort outputs (a relative rarity in systems that rely on integrated graphics). AMD's Trinity APUs should theoretically be able to push these high-res displays, but AnandTech reports that they support neither 4K video decoding nor 4K video output. As such, you'll likely have to wait for the next generation of integrated GPUs to get good 4K support—the GPUs paired with Intel's Haswell CPUs will offer DisplayPort 1.2 support, and Intel is pushing its 4K prowess hard in its marketing materials.

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domingo, 19 de maio de 2013

Gigabyte offers early peek at Z87 motherboards

URL: http://techreport.com/review/24831/gigabyte-offers-early-peek-at-z87-motherboards


Intel's next-generation processor isn't due for a couple of weeks, but that isn't stopping motherboard makers from previewing their wares. We've already seen what Asus has in store for Intel's upcoming flagship Z87 platform. Now, it's Gigabyte's turn to show off. We flew down to Los Angeles last week to check out the company's upcoming boards, and we have much to report.

Gigabyte's Z87 boards are split into three main categories: overclocking, gaming, and everything else. The OC models are really designed for the hard-core overclocking crowd; unless ...

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terça-feira, 14 de maio de 2013

Intel's Haswell Moves Voltage Regulator On-Die

URL: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/w3GxtmYzxfY/story01.htm


MojoKid writes "For the past decade, AMD and Intel have been racing each other to incorporate more components into the CPU die. Memory controllers, integrated GPUs, northbridges, and southbridges have all moved closer to a single package, known as SoCs (system-on-a-chip). Now, with Haswell, Intel is set to integrate another important piece of circuitry. When it launches next month, Haswell will be the first x86 CPU to include an on-die voltage regulator module, or VRM. Haswell incorporates a refined VRM on-die that allows for multiple voltage rails and controls voltage for the CPU, on-die GPU, system I/O, integrated memory controller, as well as several other functions. Intel refers to this as a FIVR (Fully Integrated Voltage Regulator), and it apparently eliminates voltage ripple and is significantly more efficient than your traditional motherboard VRM. Added bonus? It's 1/50th the size." Update: 05/14 01:22 GMT by U L : Reader AdamHaun comments: "They already have a test chip that they used to power a ~90W Xeon E7330 for four hours while it ran Linpack. ... Voltage ripple is less than 2mV. Peak efficiency per cell looks like ~76% at 8A. They claim hitting 82% would be easy..." and links to a presentation on the integrated VRM (PDF).

Read more of this story at Slashdot.



quarta-feira, 1 de maio de 2013

Intel Haswell's idle states reportedly won't play well with some power supplies

URL: http://www.engadget.com/2013/05/01/intel-haswell-idle-states-reportedly-dislike-some-psus/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget


Intel Haswell's lowpower state reportedly won't play well with cheap power supplies

One of the staples of Intel's upcoming Haswell processor architecture is its support for lower-power idle states that can rival tablet chips in power consumption, even on the desktop. However, that may come with a big caveat for budget and custom-built PCs: certain power supplies might not cut it. VR-Zone claims that those idle states require as little as 0.05 amps of current, which could be too nuanced for older or cut-rate supplies that deliver power in bigger clumps. That might not be a problem for companies building complete PCs, but Corsair's Robert Pearce tells The Tech Report that it may lead to a lot of motherboard builders playing it safe by disabling those specific modes by default. Many of us, in turn, would either have to buy a fresh supply or toggle the power-saving options ourselves. We've reached out to Intel to verify the truth, but it may be wisest to make a cleaner break from the past with any near-term upgrades.

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Via: TechSpot

Source: VR-Zone, The Tech Report