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Core i7-7700K vs Engineering Sample 906ED 2.1GHz


Description
The i7-7700K is based on Kaby Lake architecture while the 906ED 2.1GHz is based on Comet Lake.

Using the multithread performance as a reference, the i7-7700K gets a score of 289.8 k points while the 906ED 2.1GHz gets 657.2 k points.

Summarizing, the 906ED 2.1GHz is 2.3 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906ed
Core
Kaby Lake-S
Comet Lake-H
Architecture
Base frecuency
4.2 GHz
3.6 GHz
Boost frecuency
4.5 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
8/16
TDP
95 W
- W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
16384 kB
Date
September 2016
March 2020
Mean monothread perf.
76.9k points
86.65k points
Mean multithread perf.
289.82k points
657.19k points

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
i7-7700K
906ED 2.1GHz
Test#1 (Integers)
4.63k
5.2k (x1.12)
Test#2 (FP)
18.92k
21.19k (x1.12)
Test#3 (Generic, ZIP)
6.22k
6.85k (x1.1)
Test#1 (Memory)
13.92k
15.48k (x1.11)
TOTAL
43.7k
48.71k (x1.11)

Multithread

i7-7700K

906ED 2.1GHz
Test#1 (Integers)
18.53k
42.31k (x2.28)
Test#2 (FP)
86.49k
198.07k (x2.29)
Test#3 (Generic, ZIP)
28.78k
68.37k (x2.38)
Test#1 (Memory)
9.67k
7.38k (x0.76)
TOTAL
143.47k
316.12k (x2.2)

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
i7-7700K
906ED 2.1GHz
Test#1 (Integers)
17.55k
18.88k (x1.08)
Test#2 (FP)
27.82k
28.5k (x1.02)
Test#3 (Generic, ZIP)
6.8k
6.91k (x1.02)
Test#1 (Memory)
14.83k
14.86k (x1)
TOTAL
67k
69.14k (x1.03)

Multithread

i7-7700K

906ED 2.1GHz
Test#1 (Integers)
68.4k
157.47k (x2.3)
Test#2 (FP)
118.8k
265.75k (x2.24)
Test#3 (Generic, ZIP)
33.34k
68.86k (x2.07)
Test#1 (Memory)
17.43k
7.38k (x0.42)
TOTAL
237.97k
499.47k (x2.1)

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
i7-7700K
906ED 2.1GHz
Test#1 (Integers)
30.44k
33.92k (x1.11)
Test#2 (FP)
26.91k
30k (x1.11)
Test#3 (Generic, ZIP)
6.25k
7.01k (x1.12)
Test#1 (Memory)
13.3k
15.73k (x1.18)
TOTAL
76.9k
86.65k (x1.13)

Multithread

i7-7700K

906ED 2.1GHz
Test#1 (Integers)
127.73k
302.78k (x2.37)
Test#2 (FP)
123.68k
278.98k (x2.26)
Test#3 (Generic, ZIP)
29.34k
67.89k (x2.31)
Test#1 (Memory)
9.08k
7.53k (x0.83)
TOTAL
289.82k
657.19k (x2.27)

Performance/W
i7-7700K
906ED 2.1GHz
Test#1 (Integers)
1345 points/W