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Core i7-6700K vs i7-9750H


Description
The i7-6700K is based on Skylake architecture while the i7-9750H is based on Coffee Lake.

Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the i7-9750H gets 286.4 k points.

Summarizing, the i7-9750H is 1.1 times faster than the i7-6700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
906ea
Core
Skylake-S
Coffee Lake-H
Architecture
Base frecuency
4 GHz
2.6 GHz
Boost frecuency
4.2 GHz
4.5 GHz
Socket
LGA 1151
BGA 1440
Cores/Threads
4/8
6/12
TDP
95 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
12288 kB
Date
May 2015
April 2019
Mean monothread perf.
63.22k points
65.33k points
Mean multithread perf.
254.56k points
286.43k 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
i7-6700K
i7-9750H
Test#1 (Integers)
25.78k
25.93k (x1.01)
Test#2 (FP)
23.08k
22.84k (x0.99)
Test#3 (Generic, ZIP)
5.32k
5.11k (x0.96)
Test#1 (Memory)
9.03k
11.46k (x1.27)
TOTAL
63.22k
65.33k (x1.03)

Multithread

i7-6700K

i7-9750H
Test#1 (Integers)
112.83k
130.68k (x1.16)
Test#2 (FP)
106.86k
119.91k (x1.12)
Test#3 (Generic, ZIP)
25.76k
28.76k (x1.12)
Test#1 (Memory)
9.12k
7.08k (x0.78)
TOTAL
254.56k
286.43k (x1.13)

Performance/W
i7-6700K
i7-9750H
Test#1 (Integers)
1188 points/W
2904 points/W
Test#2 (FP)
1125 points/W
2665 points/W
Test#3 (Generic, ZIP)
271 points/W
639 points/W
Test#1 (Memory)
96 points/W
157 points/W
TOTAL
2680 points/W
6365 points/W

Performance/GHz
i7-6700K
i7-9750H
Test#1 (Integers)
6139 points/GHz
5762 points/GHz
Test#2 (FP)
5495 points/GHz
5075 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1135 points/GHz
Test#1 (Memory)
2150 points/GHz
2547 points/GHz
TOTAL
15052 points/GHz
14519 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. 3.11.4