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Laptop Mag Is Shutting Down

Par :BeauHD
2 juillet 2025 à 01:25
Laptop Mag, a tech publication that began in 1991 as a print magazine, is shutting down after nearly 35 years. The Verge reports: Laptop Mag has evolved many times over the years. It started as a print publication in 1991, when Bedford Communications launched the Laptop Buyers Guide and Handbook. Laptop Mag was later acquired by TechMedia Network (which is now called Purch) in 2011 and transitioned to digital-only content in 2013. Future PLC, the publisher that owns brands like PC Gamer, Tom's Guide, and TechRadar, acquired Purch -- and Laptop Mag along with it. "We are incredibly grateful for your dedication, talent, and contributions to Laptop Mag, and we are committed to supporting you throughout this transition," [Faisal Alani, the global brand director at Laptop Mag owner Future PLC] said. Laptop Mag's shutdown follows the closure of long-running tech site AnandTech, which was also owned by Future PLC. It's not clear whether Laptop Mag's archives will be available following the shutdown.

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PCI Express 7.0 Specs Released

Par :BeauHD
12 juin 2025 à 21:30
The PCI-SIG, which oversees the development of the PCIe specification, has officially released the final spec for PCI Express 7.0. "The PCIe 7.0 specification increases the per-lane data transfer rate to 128 GT/s in each direction, which is twice as fast as PCIe 6.0 supports and four times faster than PCIe 5.0," reports Tom's Hardware. "Such a significant performance increase enables devices with 16 PCIe 7.0 lanes to transfer up to 256 GB/s in each direction, not accounting for protocol overhead. The new version of the interface continues to use PAM4 signaling while maintaining the 1b/1b FLIT encoding method first introduced in PCIe 6.0." From the report: To achieve PCIe 7.0's 128 GT/s record data transfer rate, developers of PCIe 7.0 had to increase the physical signaling rate to 32 GHz or beyond. Keep in mind that both PCIe 5.0 and 6.0 use a physical signaling rate of 16 GHz to enable 32 GT/s using NRZ signaling and 64 GT/s using PAM4 signaling (which allows transfers of two bits per symbol). With PCIe 7.0, developers had to boost the physical frequency for the first time since 2017, which required tremendous work at various levels, as maintaining signal integrity at 32 GHz over long distances using copper wires is extremely challenging. Beyond raw throughput, the update also offers improved power efficiency and stronger support for longer or more complex electrical channels, particularly when using a cabling solution, to cater to the needs of next-generation data center-grade bandwidth-hungry applications, such as 800G Ethernet, Ultra Ethernet, and quantum computing, among others. [...] With the PCIe 7.0 standard officially released, members of the PCI-SIG, including AMD, Intel, and Nvidia, can begin finalizing the development of their platforms that support the PCIe specifications. PCI-SIG plans to start preliminary compliance tests in 2027, with official interoperability tests scheduled for 2028. Therefore, expect actual PCIe 7.0 devices and platforms on the market sometime in 2028 - 2029, if everything goes as planned. PCI-SIG also announced that pathfinding for PCIe 8.0 is underway, and members of the organization are actively exploring possibilities and defining capabilities of a standard that they are going to use in 2030 and beyond. "Interestingly, when asked whether PCIe 8.0 would double data transfer rate to 256 GT/s in each direction (and therefore enable bandwidth of 1 TB/s in both directions using 16 lanes), Al Yanes, president of PCI-SIG, said that while this is an intention, he would not like to make any definitive claims," reports Tom's Hardware. "Additionally, he stated that PCI-SIG is looking forward to enabling PCIe 8.0, which will offer higher performance over copper wires in addition to optical interconnects."

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Polish Engineer Creates Postage Stamp-Sized 1980s Atari Computer

Par :BeauHD
4 juin 2025 à 01:00
Ars Technica's Benj Edwards reports: In 1979, Atari released the Atari 400 and 800, groundbreaking home computers that included custom graphics and sound chips, four joystick ports, and the ability to run the most advanced home video games of their era. These machines, which retailed for $549 and $999, respectively, represented a leap in consumer-friendly personal computing, with their modular design and serial I/O bus that presaged USB. Now, 46 years later, a hobbyist has shrunk down the system hardware to a size that would have seemed like science fiction in the 1970s. Polish engineer Piotr "Osa" Ostapowicz recently unveiled "Atarino," which may be the world's smallest 8-bit Atari computer re-creation, according to retro computing site Atariteca. The entire system -- processor, graphics chips, sound hardware, and memory controllers -- fits on a module measuring just 2x1.5 centimeters (about 0.79x0.59 inches), which is roughly the size of a postage stamp. Ostapowicz's creation reimplements the classic Atari XL/XE architecture using modern FPGA (field-programmable gate array) technology. Unlike software emulators that simulate old hardware (and modern recreations that run them, like the Atari 400 Mini console) on a complete computer system of another architecture, Atarino reproduces the original Atari components faithfully at the logic level, allowing it to run vintage software while maintaining compatibility with original peripherals. [...] The project, which began over a decade ago and was first publicly demonstrated in December 2023, includes a 6502C processor, ANTIC and GTIA graphics chips, POKEY sound chip, and memory controllers onto a single Lattice UP5K FPGA chip. Despite its tiny size, the system can run at clock speeds up to 31 MHz -- far faster than the original hardware's 1.79 MHz. While the Atarino can run vintage software and work with the original peripherals, it brings several key improvements -- including a modernized 6502 core with added instructions, a more efficient memory architecture, enhanced video output via VGA and HDMI, extended graphics modes, refined sound chip emulation, modular hardware design, support for modern connectivity like Wi-Fi and Ethernet, and compatibility with contemporary development tools like CC65 and Visual Studio Code. Ostapowicz "plans to release complete kits with documentation, inviting the retrocomputing community to experiment with the hardware," adds Edwards.

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Linux Swap Table Code Shows The Potential For Huge Performance Gains

Par :BeauHD
16 mai 2025 à 23:30
A new set of 27 Linux kernel patches introduces a "Swap Tables" mechanism aimed at enhancing virtual memory management. As Phoronix's Michael Larabel reports, "the hope is for lower memory use, higher performance, dynamic swap allocation and growth, greater extensibility, and other improvements over the existing swap code within the Linux kernel." From the report: Engineer Kairui Song with Tencent posted the Swap Table patch series today for implementing the design ideas discussed in recent months by kernel developers. The results are very exciting so let's get straight to it: "With this series, swap subsystem will have a ~20-30% performance gain from basic sequential swap to heavy workloads, for both 4K and mTHP folios. The idle memory usage is already much lower, the average memory consumption is still the same or will also be even lower (with further works). And this enables many more future optimizations, with better defined swap operations." "The patches also clean-up and address various historical issues with the SWAP subsystem," notes Larabel. Context: In Linux, swap space acts as an overflow for RAM, storing inactive memory pages on disk to free up RAM for active processes. Traditional swap mechanisms are limited in flexibility and performance. The proposed "Swap Tables" aim to address these issues by allowing more efficient and dynamic management of swap space, potentially leading to better system responsiveness and resource utilization.

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Nvidia Reportedly Raises GPU Prices by 10-15%

Par :msmash
12 mai 2025 à 17:33
An anonymous reader shares a report: A new report claims that Nvidia has recently raised the official prices of nearly all of its products to combat the impact of tariffs and surging manufacturing costs on its business, with gaming graphics cards receiving a 5 to 10% hike while AI GPUs see up to a 15% increase. As reported by Digitimes Taiwan, Nvidia is facing "multiple crises," including a $5.5 billion hit to its quarterly earnings over export restrictions on AI chips, including a ban on sales of its H20 chips to China. Digitimes reports that CEO Jensen Huang has been "shuttling back and forth" between the US and China to minimize the impact of tariffs, and that "in order to maintain stable profitability," Nvidia has reportedly recently raised official prices for almost all its products, allowing its partners to increase prices accordingly.

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