News for hackers. Stuff that matters.

A comment on Arm-Based 128-Core Ampere CPUs Cost a Fraction of x86 Price. Parent comment

Re:Arm-Based 128-Core Ampere CPUs Cost a Fraction of x86 Price by goldenkey on Tuesday January 04, 2022 @07:00AM (#29793889)
Once mitigations for Spectre, Meltdown, and whatnot are enabled, is hyper threading still a real gain?
[ Parent | on HN ]
Re:Arm-Based 128-Core Ampere CPUs Cost a Fraction of x86 Price by sidkshatriya on Tuesday January 04, 2022 @07:12AM (#29793956)
Newer generation Intel CPUs deal with some of these issues on a hardware level.

See https://www.intel.com/content/www/us/en/developer/topic-tech...

So the level at which your Intel CPU is "crippled" would depend on how old it is, I guess.

[ Parent | on HN ]
Re:Arm-Based 128-Core Ampere CPUs Cost a Fraction of x86 Price by goldenkey on Tuesday January 04, 2022 @08:06AM (#29794262)
Are these hardware fixes just bandaids or are the actual architectural flaws really fixed? Because didn't other processors that did speculative execution besides Intel's also have similar vulnerabilities?

A lot of expert level folks on here were saying that the architecture surrounding speculative execution would need a total removal or reengineering to fix it.

[ Parent | on HN ]