Technology

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks

Source

Ars Technica

Published

Jul 14, 2025

TL;DR

AI Generated

Nvidia's RTX A6000 GPU is vulnerable to Rowhammer attacks, where hackers can manipulate data stored in memory by exploiting weaknesses in DRAM chip modules. Nvidia is recommending a mitigation that could reduce performance by up to 10% to protect users from potential exploits that could compromise work projects. This marks the first time GPUs have been targeted by Rowhammer attacks, which were previously demonstrated only against memory chips for CPUs. The vulnerability poses a risk to users of high-performance computing GPUs, prompting Nvidia to take action to safeguard against potential compromises.

Read Full Article

SiPearl unveils Europe's first dual-use sovereign processor with 80 cores — expected in 2027 for government, aerospace, and defense applications

SiPearl has unveiled Athena1, Europe's first dual-use processor with up to 80 cores, catering to government, aerospace, and defense applications. The CPU, based on Arm’s Neoverse V1 architecture, is set to be available in various core configurations by the second half of 2027. SiPearl's Athena1, an enhanced version of its Rhea processor, boasts advanced encryption and security features suitable for tasks like encrypted communications and intelligence analysis. The processor, manufactured by TSMC, aims to bolster Europe's technological sovereignty in the face of geopolitical challenges.

Tom's Hardware•

7 months ago

Rio Terminal: A hardware-accelerated GPU terminal emulator

Rio Terminal is a modern terminal emulator leveraging Rust and advanced rendering architectures for fast performance. It supports 24-bit true color, image display within the terminal, font ligatures, splits, and RetroArch shaders. The cross-platform app runs on Windows, macOS, Linux, and FreeBSD. Users praise its speed, features, and aesthetics, making it a popular choice among engineers and developers.

Hacker News•

7 months ago

MIT Technology Review

Designing CPUs for next-generation supercomputing

Despite the hype around GPU-powered AI breakthroughs, CPUs remain crucial for high-performance computing, supporting the majority of scientific, engineering, and research workloads. Recent innovations in CPU technology, such as high-bandwidth memory (HBM), are leading to significant performance improvements without the need for costly architectural changes. Evan Burness from Microsoft Azure estimates that CPUs still handle 80% to 90% of HPC simulation jobs. This resurgence in CPU development is highlighted in a new report by MIT Technology Review's custom content arm, emphasizing the ongoing importance of CPUs in next-generation supercomputing.

MIT Technology Review•

8 months ago

HighPoint's adapter enables GPUDirect storage — up to 64 GB/s from drive to GPU, bypassing the CPU

HighPoint has unveiled the Rocket 7638D PCIe 5.0 switch card, facilitating GPUDirect connection between AI GPUs and NVMe storage devices, bypassing the CPU for speeds of up to 64 GB/s. This technology enhances AI training and inference workloads with compatible software. The adapter supports up to 16 NVMe drives, offering configurations with up to 2PB of high-performance storage. The Broadcom PEX 89048 switch chip in the adapter is independent and compatible with both Arm and x86 platforms, simplifying integration with major operating systems. HighPoint's Rocket 7638D also includes features for health monitoring and troubleshooting, catering to multi-node or hyperscale installations.