Core i5-8400 vs Engineering Sample 906EC
Description
Both models i5-8400 and 906EC are based on Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the 906EC gets 494.2 k points.
Summarizing, the 906EC is 1.7 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the 906EC gets 494.2 k points.
Summarizing, the 906EC is 1.7 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906ec
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
2.8 GHz
2.1 GHz
Boost frecuency
4 GHz
4.3 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
8/16
TDP
65 W
- W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x256 kB
Cache L3
9216 kB
16384 kB
Date
September 2017
January 2019
Mean monothread perf.
64.98k points
70.55k points
Mean multithread perf.
289.61k points
494.24k points
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i5-8400
906EC
Test#1 (Integers)
26.5k
28.3k (x1.07)
Test#2 (FP)
23.11k
24.99k (x1.08)
Test#3 (Generic, ZIP)
5.2k
5.55k (x1.07)
Test#1 (Memory)
10.16k
11.71k (x1.15)
TOTAL
64.98k
70.55k (x1.09)
Multithread
i5-8400
906EC
Test#1 (Integers)
135.08k
229.27k (x1.7)
Test#2 (FP)
121.49k
209.21k (x1.72)
Test#3 (Generic, ZIP)
27.53k
48.53k (x1.76)
Test#1 (Memory)
5.5k
7.23k (x1.31)
TOTAL
289.61k
494.24k (x1.71)
Performance/W
i5-8400
906EC
Test#1 (Integers)
2078 points/W