1/17/2024 0 Comments Intel spectre meltdown cpu listThey are vulnerable to the Meltdown and both Spectre exploits. Intel Server / Workstation CPUs Vulnerable To Meltdown + SpectreĪffected Variants : These Intel CPUs are affected by all three variants of the speculative execution CPU bug. VIA Desktop + Mobile CPUs Vulnerable To Meltdown + Spectre Intel Mobile CPUs Affected By Meltdown + Spectre Intel Desktop CPUs Affected By Meltdown + Spectre Intel Server / Workstation CPUs Vulnerable To Meltdown + Spectre Apple, ARM & Intel CPUs Affected By Meltdown & Spectre ![]() AMD Workstation, Desktop & Mobile CPUs Vulnerable To Spectre The Complete List Of CPUs Affected By Meltdown + Spectre Give me the option for 90, 120, or 144Hz VR at the cost of security, that's acceptable to me. I have more than five working laptops and a modern smartphone for banking, investment accounts, and private messages. I fly VR flight sims, one of the few cases where the best possible single-core performance available today isn't even close to enough. Maybe it's time for them to start having "S" variants too where Spectre is not mitigated and full performance is provided. I don't want my computer hardware sliding back a generation or more in terms of performance. The data attackers can get is not of significant value. I don't care about this vulnerability at home. Proprietary business data needs to stay safe. It's possible Intel and other software developers will be able to reduce the impact of the BHI mitigations with additional time and effort, but for the time being, enabling the patches could prove very painful on servers and other systems that do a lot of I/O intensive work.īigdragon said:I care about this vulnerability at work and don't mind the performance hit. ![]() The impact of the transition for AMD processors is unknown, but Phoronix is already conducting new tests to find out. The problem is that AMD's LFENCE/JMP-based implementation of Retpolines isn't good enough to fend off BHI, so the chipmaker is shifting to general Retpolines. Phoronix noted that AMD processors aren't safe from BHI even though modern Zen chips already leverage Retpolines. These include gaming, web browsing, and other daily tasks. But again, workloads that don't rely on I/O or networking didn't show significant performance loss. The results showed 35.6% and 34.1% lower performance in OSBench and Flexible IO Tester, respectively. Meltdown is related to the way privileges can be escalated, while Spectre entails access to sensitive data that may be stored on the application’s memory space. The Core i7-1185G7 (Tiger Lake) took an even more detrimental hit to storage performance. Intel processors built since 1995 are reportedly affected by Meltdown, while Spectre affects devices running on Intel, AMD, and ARM processors. ![]() Workloads like web browsing or image manipulation in GIMP didn't show a huge impact. That's the hallmark of these mitigations: Any external I/O from the chip takes a hard hit. The publication recorded a 26.7% performance loss on the former and 14.5% on the latter. In Intel's case, that would be eIBRS, but as the VUSec researchers highlighted, it isn't enough to fight off BHI, which is the reason to have eIBRS and Retpolines working in tandem.Īccording to Phoronix's Core i9-12900K (Alder Lake) results, networking and storage performance went down the toilet after enabling Retpolines. The disclosure of Spectre and Meltdown opened a floodgates of sorts, what with endless variants of the attacks coming to light in the intervening years, even as chipmakers like Intel, ARM, and AMD have continually scrambled to incorporate defenses to alleviate the vulnerabilities that permit malicious code to read passwords, encryption keys, and other valuable information directly from a. The recommendation still stands for modern processors that already carry the necessary hardware mitigations for Spectre V2. VUSec, the Systems and Network Security Group at Vrije Universiteit Amsterdam who discovered BHI, recommended enabling Repotlines (return and trampoline) to mitigate BHI. However, the Linux community was quick to act, and mitigations for BHI already formed a part of the Linux kernel in a matter of minutes after BHI's announcement. Intel will release a software update for its processors to mitigate BHI, but it may take a while since processors starting from Haswell going forward are vulnerable to the exploit. Linux publication Phoronix conducted testing that shows the new BHI mitigations could produce severe performance penalties up to 35%. Branch History Injection (BHI), a new flavor of the Spectre-v2 vulnerability that affects both new and old Intel processors and specific Arm models, recently came to light.
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