4 ms·

No real advancement after Sandy Bridge was made. Only incremental 10% with each gen. That means current gen is only 2x as fast when comparing the same lines (i7

No real advancement after Sandy Bridge was made. Only incremental 10% with each gen. That means current gen is only 2x as fast when comparing the same lines (i7 to i7). If you can't make new things better, just gimp the old ones, like Spectre/Meltdown.

close04 8y ago
2 times faster would be quite good actually. Sadly we're barely at 50% faster per core, and that's including the usual 20-30% frequency bump on newer models. Pure IPC improvement is even lower, at maybe 2-5% per generation (~30% total at same frequency, 2nd gen vs. 7th gen). Yeah, you could argue that doubling the core or thread count doubled performance in selected software but the reality is that for real world use, excluding specific corner cases, the improvement is hard to notice. A reason to upgrade is to have a newer platform and the features that would bring, definitely not the CPU.
merb 8y ago
well ddr4 is a huge improvement
- Dylan16807 8y ago
  If you're memory-starved, yes. A typical quad core is not going to be memory-starved, and the effect is pretty mild compared to the effect of a GPU. Or for non-gaming, it either doesn't matter at all or is 90% about core count. https://img.purch.com/r/711x457/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9IL0cvNTUyNzI0L29yaWdpbmFsL2ltYWdlMDExLnBuZw== https://img.purch.com/r/711x457/aHR0cDovL21lZGlhLmJlc3RvZm1p...
watersb 8y ago
My Ivy Bridge laptop uses twice the power as my Apollo Lake laptop. Literally 2x.
- NullPrefix 8y ago
  Apollo is Atom, isn't it? So it's not apples to apples. I'm pretty sure there were sub 10W SoC for some years before Ivy bridge.
  - watersb 8y ago
    Yes, Apollo Lake is an Atom SoC. While I am doing simple web development, performance is about the same. Mostly lacking RAM versus older, Core platforms. But all-up, Windows 10 at 6 Watts. Including the display, storage, the whole system — or so the performance counters on the battery tell me.

close04 8y ago

2 times faster would be quite good actually. Sadly we're barely at 50% faster per core, and that's including the usual 20-30% frequency bump on newer models. Pure IPC improvement is even lower, at maybe 2-5% per generation (~30% total at same frequency, 2nd gen vs. 7th gen). Yeah, you could argue that doubling the core or thread count doubled performance in selected software but the reality is that for real world use, excluding specific corner cases, the improvement is hard to notice. A reason to upgrade is to have a newer platform and the features that would bring, definitely not the CPU.

merb 8y ago

well ddr4 is a huge improvement

Dylan16807 8y ago
If you're memory-starved, yes. A typical quad core is not going to be memory-starved, and the effect is pretty mild compared to the effect of a GPU. Or for non-gaming, it either doesn't matter at all or is 90% about core count. https://img.purch.com/r/711x457/aHR0cDovL21lZGlhLmJlc3RvZm1pY3JvLmNvbS9IL0cvNTUyNzI0L29yaWdpbmFsL2ltYWdlMDExLnBuZw== https://img.purch.com/r/711x457/aHR0cDovL21lZGlhLmJlc3RvZm1p...

watersb 8y ago

My Ivy Bridge laptop uses twice the power as my Apollo Lake laptop. Literally 2x.

NullPrefix 8y ago
Apollo is Atom, isn't it? So it's not apples to apples. I'm pretty sure there were sub 10W SoC for some years before Ivy bridge.
- watersb 8y ago
  Yes, Apollo Lake is an Atom SoC. While I am doing simple web development, performance is about the same. Mostly lacking RAM versus older, Core platforms. But all-up, Windows 10 at 6 Watts. Including the display, storage, the whole system — or so the performance counters on the battery tell me.