Intel Core i3 2100 Sandy Bridge vs. Core i3 7100 Kabylake Performance

[aschmidtm]

cj.wijtmans
Oh, you don’t get it. Sorry.

[triangle]

Yeah. I wonder if there is any way to factor that out. I guess not.

Maybe the DDR4 could be under clocked to match the DDR3 memory? I don't know if it is possible or not.

[mbello]

So is Moore's law dead or not?

Experts from the foundry industry say Moore's law is alive and doing well. Cost per transistor charts shows that costs are still going down with each new node which should have enabled for much faster improvements in Intel's processors over the past 6 years.

At its worse on the benchmarks Sandy Bridge was running at about half the speed. So Kabylake is twice as fast as Sandy Bridge... after 6 years. That is not what Moore's law is about. But if the process technology is doing well why are Intel's processors no longer evolving as they used to?

Some hypothesis:
1. Lack of competition;
2. Lower gains from architecture improvements... there is only so much optimization one can do;
3. Intel is increasing their gross margins (is the manufacturing cost of a USD 120 Intel processor today lower than it was 6 years ago?);

[strtj]

That scimark performance is baffling. Even using the exact same executable on both CPUs (which seems to have been the case, no -march=native or the like) I would at least expect an increase commensurate with the clock speed increase. Are the results for the scimark subtests available?

[carewolf]

Yeah. I wonder if there is any way to factor that out. I guess not.

Though he could have at least have had the same amount of memory in each. That probably affected the compile-time benchmarks which were the only really surprising thing.

[carewolf]

DDR4 seems make some difference

Yeah. I wonder if there is any way to factor that out. I guess not.

[cj.wijtmans]

Yes, because higher prices lead to increase of demand.

https://en.m.wikipedia.org/wiki/Supply_and_demand

Thats not how supply and demand works... If demand drops prices go up...
Anyhow the idea is retarded since its circular reasoning and doesnt factor in production costs.

[aschmidtm]

Yes, because higher prices lead to increase of demand.

https://en.m.wikipedia.org/wiki/Supply_and_demand

[cj.wijtmans]

Less people are buying cpus. So they have to raise their prices.

[VikingGe]

Is it just me or is the entire i3 lineup ridiculously overpriced nowadays? The i3-7100 retails for about 120€, twice as much as the SMT-enabled Pentium, and the 7350K is actually more expensive than the i5-7400. WTF Intel, at least offer better perf/€ than five years ago...