If we’re talking about security, the newer CPUs have better microcode. Those older CPUs are vulnerable to attacks such as Spectre. Older boards supported by Libreboot, such as the Haswell boards (e.g., Dell 9020 OptiPlex), which support 100% free BIOS firmware, which is to be used in conjunction with 100% free software. If you do so, you will have more security, freedom, and privacy than any other modern consumer grade computer.
Then again, these boards are old, so, given the microcode is old, if you’re running a virtual machine with a bunch of malicious software, an attacker can potentially exploit your host’s CPU and break out of that VM. Of course, determine your threat model. Are you running no JavaScript ever and only using libre software?
A deblobbed kernel isn’t great either in some cases, you may need some patches. For example, someone was able to exploit Intel’s iGPU on these older boards and gain complete access to your machine. The only way to fix this is by using a blob. Though, if you strictly only use libre software, this wouldn’t be a concern as much so you wouldn’t need this blob.
If you stick strictly to 100% free software, older hardware and a deblobbed kernel might be appropriate. But if you need to run blobs along with other proprietary software like JavaScript, the security provided by something like the Intel iGPU blob patch could be beneficial.
If we’re talking about security, the newer CPUs have better microcode. Those older CPUs are vulnerable to attacks such as Spectre. Older boards supported by Libreboot, such as the Haswell boards (e.g., Dell 9020 OptiPlex), which support 100% free BIOS firmware, which is to be used in conjunction with 100% free software. If you do so, you will have more security, freedom, and privacy than any other modern consumer grade computer.
Then again, these boards are old, so, given the microcode is old, if you’re running a virtual machine with a bunch of malicious software, an attacker can potentially exploit your host’s CPU and break out of that VM. Of course, determine your threat model. Are you running no JavaScript ever and only using libre software?
A deblobbed kernel isn’t great either in some cases, you may need some patches. For example, someone was able to exploit Intel’s iGPU on these older boards and gain complete access to your machine. The only way to fix this is by using a blob. Though, if you strictly only use libre software, this wouldn’t be a concern as much so you wouldn’t need this blob.
If you stick strictly to 100% free software, older hardware and a deblobbed kernel might be appropriate. But if you need to run blobs along with other proprietary software like JavaScript, the security provided by something like the Intel iGPU blob patch could be beneficial.