Mark Hachman

Senior Editor

As PCWorld's senior editor, Mark focuses on Microsoft news and chip technology, among other beats. He has formerly written for PCMag, BYTE, Slashdot, eWEEK, and ReadWrite.

Lenovo's Marvel Dimension of Heroes lets you play Marvel superheroes in AR

Lenovo's Marvel Dimension of Heroes lets you play Marvel superheroes in AR

Lenovo and Disney build on its Star Wars AR game of two years ago. Marvel Dimension of Heroes adds a pair of controllers, so you can play Captain America and five other Marvel heroes in augmented reality.

AMD Ryzen 3900X hits $740 on eBay as AMD struggles to deliver its flagship chip

AMD Ryzen 3900X hits $740 on eBay as AMD struggles to deliver its flagship chip

Major retailers are still sold out of AMD's Ryzen 3900X and 3800X CPUs, two weeks after the chips began to ship. That's caused spot prices to spike to $740 on eBay, almost $250 higher than retail.

Nvidia models the Apollo 11 moon landing using real-time ray tracing

Nvidia models the Apollo 11 moon landing using real-time ray tracing

Nvidia has recreated the Apollo 11 moon landing using its RTX technology, including the lunar lander and Neil Armstrong.

AMD officially hires Alienware's Frank Azor as its new gaming chief

AMD officially hires Alienware's Frank Azor as its new gaming chief

AMD has hired Frank Azor as its chief architect of gaming solutions.

Microsoft is shutting down its online versions of Hearts, Spades, Checkers and more

Microsoft is shutting down its online versions of Hearts, Spades, Checkers and more

Microsoft says that it will discontinue the online versions of many popular games, such as Hearts, Backgammon, and Go.

The PCI Express 6.0 specification is announced and due to arrive in 2021, with products to follow

The PCI Express 6.0 specification is announced and due to arrive in 2021, with products to follow

Though AMD recently announced the first PCIe 4.0 chipset, the PCI SIG has announced PCI Express 6.0, which will arrive in two years.

Microsoft readies a renamed Xbox Console Companion app for Xbox management on Windows

Microsoft readies a renamed Xbox Console Companion app for Xbox management on Windows

Microsoft is informing users that it's renaming its Xbox app for Windows 10 as the "Xbox Console Companion," in preparation for new features to be announced at E3.

Microsoft's Pro Intellimouse for gaming puts a sassy taillight on an otherwise sober design

Microsoft's Pro Intellimouse for gaming puts a sassy taillight on an otherwise sober design

Microsoft has begun selling the Pro Intellimouse mouse with report rates up to 1,000 times per second. But it comes with an odd throwback USB 2.0 interface, too.

Intel reveals the beastly Core i9-9900KS, likely its fastest gaming chip (for real)

Intel reveals the beastly Core i9-9900KS, likely its fastest gaming chip (for real)

Intel announces the Core i9-990KS, which will vie for the crown of best gaming processor with its ability to scale to 5GHz across all cores.

Microsoft's augmented reality Minecraft tease is a reminder of its world-shattering HoloLens demo

Microsoft's augmented reality Minecraft tease is a reminder of its world-shattering HoloLens demo

Microsooft ends its Build keynote with a teaser of what looks like an augmented reality version of Minecraft. In a sense, we've already seen it, as part of Microsoft's killer HoloLens demo a few years ago.

AMD upends GPU tradition by launching 'Navi' as a lower-end part

AMD upends GPU tradition by launching 'Navi' as a lower-end part

AMD's first-quarter earnings call revealed a surprise: AMD's new Navi GPU architecture won't be a flagship part, at least initially.

5G could be the foundation of next-gen 'cloud VR'

5G could be the foundation of next-gen 'cloud VR'

AT&T, Ericsson, and a number of companies showed off streamed VR to headsets, using 5G to minimize nausea-inducing latencies while keeping the resolutions high.

Microsoft ports Xbox Live to Android, iOS to extend the reach of Xbox

Microsoft ports Xbox Live to Android, iOS to extend the reach of Xbox

Microsoft announces an initiative tied to the Game Developers Conference to bring games on Android, iOS and Switch to its Xbox Live platform.

Microsoft ports DirectX 12 to Windows 7, giving some older PC games a performance boost

Microsoft ports DirectX 12 to Windows 7, giving some older PC games a performance boost

Microsoft is porting DirectX 12 to Windows 7 on a game-by-game basis. The first game to deliver will be World of Warcraft, with others to follow.

Recent Windows 10 patch brings good, bad performance news for PC gamers

Recent Windows 10 patch brings good, bad performance news for PC gamers

Though Windows 10 patch KB4482887 offers a performance improvement for older Intel Core processors, it also introduces a known issue that may slow down your GPU and mouse.

Logitech brings back its MX518 gaming mouse with an updated version for 2019

Logitech brings back its MX518 gaming mouse with an updated version for 2019

Game like it's 2005 again with an updated version of the Logitech MX518 gaming mouse.

AMD and Nvidia's unsettled earnings suggest lower GPU prices could hang on

AMD and Nvidia's unsettled earnings suggest lower GPU prices could hang on

Though AMD reported healthy fourth-quarter profits and revenue, it pointed to a continued oversupply in the GPU market that implies that Nvidia and AMD graphics cards will remain cheap for for a month or two.

Lisa Su on the record: AMD's CEO talks Ryzen, Vega, ray tracing, and lots more at CES

Lisa Su on the record: AMD's CEO talks Ryzen, Vega, ray tracing, and lots more at CES

AMD chief executive Lisa Su talks candidly about ray tracing hardware, 3rd-gen Ryzen, clock speeds and cores, and a number of other topics following her CES 2019 keynote. Here's the full transcript.

AMD's CEO Lisa Su confirms ray tracing GPU development, hints at more 3rd-gen Ryzen cores

AMD's CEO Lisa Su confirms ray tracing GPU development, hints at more 3rd-gen Ryzen cores

AMD's chief executive builds off her CES introduction of Radeon VII and the 3rd-generation Ryzen with disclosures about ray tracing plans, more cores for its Ryzen chips, and more.

AMD announces 3rd-gen Ryzen and Radeon VII, beating Intel and Nvidia to 7nm

AMD announces 3rd-gen Ryzen and Radeon VII, beating Intel and Nvidia to 7nm

AMD CEO Lisa Su took the stage for the first time at CES, giving details about AMD's next-gen Ryzen CPU and its 7nm Vega GPU, now branded Radeon VII.

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