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Core i7-6700K vs i7-10870H


Description
The i7-6700K is based on Skylake architecture while the i7-10870H is based on Comet Lake.

Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the i7-10870H gets 487 k points.

Summarizing, the i7-10870H is 1.9 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
a0652
Core
Skylake-S
Comet Lake-H
Architecture
Base frecuency
4 GHz
2.2 GHz
Boost frecuency
4.2 GHz
5 GHz
Socket
LGA 1151
FC-BGA 1440
Cores/Threads
4/8
8/16
TDP
95 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
16384 kB
Date
May 2015
September 2020
Mean monothread perf.
63.22k points
79.2k points
Mean multithread perf.
254.56k points
487.05k 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
i7-6700K
i7-10870H
Test#1 (Integers)
4.07k
4.77k (x1.17)
Test#2 (FP)
16.62k
19.81k (x1.19)
Test#3 (Generic, ZIP)
5.23k
6.29k (x1.2)
Test#1 (Memory)
6.28k
14.03k (x2.24)
TOTAL
32.2k
44.9k (x1.39)

Multithread

i7-6700K

i7-10870H
Test#1 (Integers)
16.37k
31.21k (x1.91)
Test#2 (FP)
77.34k
151.01k (x1.95)
Test#3 (Generic, ZIP)
25.65k
50.13k (x1.95)
Test#1 (Memory)
10.21k
8.37k (x0.82)
TOTAL
129.57k
240.71k (x1.86)

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
i7-6700K
i7-10870H
Test#1 (Integers)
14.73k
17.17k (x1.17)
Test#2 (FP)
21.27k
25.26k (x1.19)
Test#3 (Generic, ZIP)
5.52k
6.7k (x1.22)
Test#1 (Memory)
6.32k
13.81k (x2.19)
TOTAL
47.84k
62.95k (x1.32)

Multithread

i7-6700K

i7-10870H
Test#1 (Integers)
61.09k
116.68k (x1.91)
Test#2 (FP)
99.17k
187.28k (x1.89)
Test#3 (Generic, ZIP)
26.57k
51.52k (x1.94)
Test#1 (Memory)
10.26k
8.39k (x0.82)
TOTAL
197.09k
363.87k (x1.85)

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
i7-10870H
Test#1 (Integers)
25.78k
30.38k (x1.18)
Test#2 (FP)
23.08k
27.95k (x1.21)
Test#3 (Generic, ZIP)
5.32k
6.51k (x1.22)
Test#1 (Memory)
9.03k
14.37k (x1.59)
TOTAL
63.22k
79.2k (x1.25)

Multithread

i7-6700K

i7-10870H
Test#1 (Integers)
112.83k
216.18k (x1.92)
Test#2 (FP)
106.86k
210.82k (x1.97)
Test#3 (Generic, ZIP)
25.76k
51.57k (x2)
Test#1 (Memory)
9.12k
8.47k (x0.93)
TOTAL
254.56k
487.05k (x1.91)

Performance/W
i7-6700K
i7-10870H
Test#1 (Integers)
1188 points/W
4804 points/W
Test#2 (FP)
1125 points/W
4685 points/W
Test#3 (Generic, ZIP)
271 points/W
1146 points/W
Test#1 (Memory)
96 points/W
188 points/W
TOTAL
2680 points/W
10823 points/W

Performance/GHz
i7-6700K
i7-10870H
Test#1 (Integers)
6139 points/GHz
6075 points/GHz
Test#2 (FP)
5495 points/GHz
5589 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1302 points/GHz
Test#1 (Memory)
2150 points/GHz
2873 points/GHz
TOTAL
15052 points/GHz
15840 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