Le 24/08/2018 à 20:51, Mike Horvath a écrit :
> On 8/24/2018 9:51 AM, William F Pokorny wrote:
>> james    1275    32.93     # i5-8400 @ 2.8GHz (6 cores 6 threads)
>> cyd    789    20.38     # i7-4770 @ 3.4Ghz (4 cores, 8 threads)
> 
> Interesting. I would have expected the bottom CPU to perform better due
> to more threads and higher clock speed.
> 
> 
> Mike

But nobody looks at the speed of the memory (from tomhardware website):
* i5-8400 uses ddr4 2666
* i7-4770 uses ddr3 1600

DDR4 2666 has a bandwidth of 21333 MB/s
DDR3 1600 has a bandwidth of 12.8 GB/s

12.8 vs 21.3 !

That's the advantage of the new generation.

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