John Carmack suspicious of Nvidia’s outlandish Tegra K1 claims
ExtremeTech, February 20, 2014
When Nvidia unveiled the Tegra K1 last month, they made a great many impressive claims about its
performance, underlying architecture, and the fact that it would debut as two different parts -- a
quad-core based on the Cortex-A15r3 with the now-standard Companion Core for added energy efficiency,
and a dual-core 64-bit chip that supports ARM’s 64-bit instruction set. John Carmack himself has just
tossed water on these claims, telling people that Nvidia’s statements should be taken “with
several grains of salt.”
Tags: Multicore, EDA, Microchips,
Perlman’s pCell: The super-fast future of wireless networking, or too good to be true?
ExtremeTech, February 19, 2014
pCell appears to completely dismantle the idea of a “wireless spectrum crunch,” allowing each mobile
device to receive full wireless bandwidth from congested base stations, potentially increasing our
total wireless bandwidth by 1,000x.
Tags: Networks, Wireless,
Hybrid Memory Cube 160GB/sec RAM starts shipping: Is this the technology that finally kills DDR RAM?
ExtremeTech, September 25, 2013
Micron announced today that it’s now shipping early samples of its Hybrid Memory Cube to customers
and early adopters. Currently the company is offering a 2GB HMC device composed of four-high stacks
of 4Gbit memory dies, with a total bandwidth of 160GB/s for the 31 × 31 mm package. There’s also a
smaller chip, at 16 × 19.5 mm, that offers two links instead of four and tops out at 120GB/s. A 4GB
device is scheduled for early 2014, which could hit up to 320GB/s depending on the final implementation.
Tags: Memory, EDA,
Qualcomm announces new 64-bit, eight-core SoCs with DX11 graphics
ExtremeTech, February 24, 2014
Qualcomm announced that it’s building a pair of new Snapdragon 600 devices to target the 64-bit market.
The first chip, the Snapdragon 610, is a quad-core design based on ARM’s Cortex-A53, while the second
chip is an octa-core product based around the same ARM core.
Tags: Multicore, SoC, EDA,
New LIDAR chip will sharpen aerial mapping and autonomous car vision
ExtremeTech, February 18, 2014
Handheld laser rangefinders have been available to consumers for years, but increasingly powerful military and
industrial versions of the technology are still being developed. A new breed of LIDAR (light detection and
ranging) technology is being developed and tested by the US Air Force at a base in Massachusetts. This system
is capable of precisely mapping over 300 square kilometers from the belly of an airplane in about half an hour.
Tags: Automotive, Vision, Military,