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Core i7-8700k vs Engineering Sample 906ED


Description
The i7-8700k is based on Coffee Lake architecture while the 906ED is based on Comet Lake.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the 906ED gets 657.2 k points.

Summarizing, the 906ED is 1.5 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
906ed
Core
Coffee Lake-S
Comet Lake-H
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
4.7 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/12
8/16
TDP
95 W
- W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x256 kB
Cache L3
12288 kB
16384 kB
Date
October 2017
March 2020

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-8700k
906ED
Test#1 (Integers)
4127
5198 (25.96%)
Test#2 (FP)
16959
21188 (24.94%)
Test#3 (Generic, ZIP)
5564
6848 (23.07%)
Test#1 (Memory)
12845
15479 (20.50%)
TOTAL
39495
48712 (23.34%)

Multithread

i7-8700k

906ED
Test#1 (Integers)
24011
42309 (76.20%)
Test#2 (FP)
108690
198067 (82.23%)
Test#3 (Generic, ZIP)
36616
68368 (86.72%)
Test#1 (Memory)
9327
7377 (-20.90%)
TOTAL
178644
316120 (76.96%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-8700k
906ED
Test#1 (Integers)
12920
18761 (45.21%)
Test#2 (FP)
20678
27149 (31.29%)
Test#3 (Generic, ZIP)
5295
7153 (35.09%)
Test#1 (Memory)
12587
15309 (21.63%)
TOTAL
51480
68371 (32.81%)

Multithread

i7-8700k

906ED
Test#1 (Integers)
94259
156950 (66.51%)
Test#2 (FP)
152549
250704 (64.34%)
Test#3 (Generic, ZIP)
39735
70023 (76.22%)
Test#1 (Memory)
8527
7431 (-12.86%)
TOTAL
295071
485108 (64.40%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-8700k
906ED
Test#1 (Integers)
16874
18879 (11.88%)
Test#2 (FP)
26119
28505 (9.14%)
Test#3 (Generic, ZIP)
6329
6906 (9.12%)
Test#1 (Memory)
13708
14855 (8.37%)
TOTAL
63030
69144 (9.70%)

Multithread

i7-8700k

906ED
Test#1 (Integers)
105740
157470 (48.92%)
Test#2 (FP)
180520
265754 (47.22%)
Test#3 (Generic, ZIP)
44994
68864 (53.05%)
Test#1 (Memory)
8512
7379 (-13.31%)
TOTAL
339766
499468 (47.00%)

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
i7-8700k
906ED
Test#1 (Integers)
31204
33917 (8.69%)
Test#2 (FP)
27821
29997 (7.82%)
Test#3 (Generic, ZIP)
6568
7007 (6.69%)
Test#1 (Memory)
15004
15726 (4.81%)
TOTAL
80598
86647 (7.51%)

Multithread

i7-8700k

906ED
Test#1 (Integers)
202422
302784 (49.58%)
Test#2 (FP)
186332
278982 (49.72%)
Test#3 (Generic, ZIP)
44958
67888 (51.00%)
Test#1 (Memory)
10054
7532 (-25.09%)
TOTAL
443765
657186 (48.09%)

Performance/W
i7-8700k
906ED
Test#1 (Integers)
2131 points/W
INF points/W
Test#2 (FP)
1961 points/W
INF points/W
Test#3 (Generic, ZIP)
473 points/W
INF points/W
Test#1 (Memory)
106 points/W
INF points/W
TOTAL
4671 points/W
INF points/W

Performance/GHz
i7-8700k
906ED
Test#1 (Integers)
6639 points/GHz
6783 points/GHz
Test#2 (FP)
5919 points/GHz
5999 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1401 points/GHz
Test#1 (Memory)
3192 points/GHz
3145 points/GHz
TOTAL
17148 points/GHz
17329 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.7.9