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Engineering Sample 906EC vs Core i7-8700


Description
Both models 906EC and i7-8700 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 906EC gets a score of 494.2 k points while the i7-8700 gets 389 k points.

Summarizing, the 906EC is 1.3 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
906ea
Core
Coffee Lake-S
Coffee Lake-S
Architecture
Base frecuency
2.1 GHz
3.2 GHz
Boost frecuency
4.3 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
6/12
TDP
- W
65 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
16384 kB
12288 kB
Date
January 2019
October 2017
Mean monothread perf.
70.55k points
75.01k points
Mean multithread perf.
494.24k points
388.95k 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
906EC
i7-8700
Test#1 (Integers)
28.3k
29.25k (x1.03)
Test#2 (FP)
24.99k
25.98k (x1.04)
Test#3 (Generic, ZIP)
5.55k
6.05k (x1.09)
Test#1 (Memory)
11.71k
13.74k (x1.17)
TOTAL
70.55k
75.01k (x1.06)

Multithread

906EC

i7-8700
Test#1 (Integers)
229.27k
182.56k (x0.8)
Test#2 (FP)
209.21k
159.9k (x0.76)
Test#3 (Generic, ZIP)
48.53k
38.18k (x0.79)
Test#1 (Memory)
7.23k
8.31k (x1.15)
TOTAL
494.24k
388.95k (x0.79)

Performance/W
906EC
i7-8700
Test#1 (Integers)