If you buy Intel, you know beforehand you won't be able to upgrade the CPU, since the socket is changed (intentionally, of course) every generation. But the CPU isn't the issue for e.g. gaming, and upgrading every generation or every other generation largely doesn't make any sense at all with Intel parts for the last eight years or so.
Since you're saying obsolete, you probably bought into 1150/Haswell. It was known this was the last pure DDR3 platform, but you can still get DDR3 memory new, if you need more. So that's not a problem, really. (And it's actually cheaper than DDR4 memory)
Graphics cards can keep up for years nowadays. I've used a midrange-highend card for five years before upgrading; I could still play new games at mid-to-high settings. Graphics cards can always be upgraded in any computer (if the PSU has enough power, which is rarely an issue).
> If you buy Intel, you know beforehand you won't be able to upgrade the CPU, since the socket is changed (intentionally, of course) every generation. But the CPU isn't the issue for e.g. gaming, and upgrading every generation or every other generation largely doesn't make any sense at all with Intel parts for the last eight years or so.
Is it really true that the socket changes every generation? My impression was that sockets changed every 2-3 generations, not every one. Not that that entirely defeats the point, but it expands the window.
Intel seems to change desktop sockets every 2 years now. That includes multiple generations, but 2 years of CPU improvements is not significant in almost all cases. A new motherboard with each new CPU is the likely situation. AMD has supported sockets for longer, and that seems to be continuing.
Yes. You get one generation (one tick-tock, so for example, Nehalem+Westmere, Sandy+Ivy Bridge, Haswell+Broadwell, though differences between tick and tock are generally not worth it). 1151/H4 deviates a bit here, because Intel fubar'd their roadmap and weren't able to deliver even single-digit advances per revision any more. So H4 now has three generations of chipsets, two of which don't support CFL (Coffee lake).
What is it used for?
If you buy Intel, you know beforehand you won't be able to upgrade the CPU, since the socket is changed (intentionally, of course) every generation. But the CPU isn't the issue for e.g. gaming, and upgrading every generation or every other generation largely doesn't make any sense at all with Intel parts for the last eight years or so.
Since you're saying obsolete, you probably bought into 1150/Haswell. It was known this was the last pure DDR3 platform, but you can still get DDR3 memory new, if you need more. So that's not a problem, really. (And it's actually cheaper than DDR4 memory)
Graphics cards can keep up for years nowadays. I've used a midrange-highend card for five years before upgrading; I could still play new games at mid-to-high settings. Graphics cards can always be upgraded in any computer (if the PSU has enough power, which is rarely an issue).