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Core i7-8700k vs i7-10870H


Description
The i7-8700k is based on Coffee Lake architecture while the i7-10870H 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 i7-10870H gets 487 k points.

Summarizing, the i7-10870H is 1.1 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
a0652
Core
Coffee Lake-S
Comet Lake-H
Architecture
Base frecuency
3.7 GHz
2.2 GHz
Boost frecuency
4.7 GHz
5 GHz
Socket
LGA 1151
FC-BGA 1440
Cores/Threads
6/12
8/16
TDP
95 W
45 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
September 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
i7-10870H
Test#1 (Integers)
4127
4766 (15.47%)
Test#2 (FP)
16959
19806 (16.79%)
Test#3 (Generic, ZIP)
5564
6292 (13.09%)
Test#1 (Memory)
12845
14034 (9.25%)
TOTAL
39495
44898 (13.68%)

Multithread

i7-8700k

i7-10870H
Test#1 (Integers)
24011
31208 (29.97%)
Test#2 (FP)
108690
151010 (38.94%)
Test#3 (Generic, ZIP)
36616
50126 (36.90%)
Test#1 (Memory)
9327
8366 (-10.30%)
TOTAL
178644
240709 (34.74%)

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
i7-10870H
Test#1 (Integers)
12920
17174 (32.93%)
Test#2 (FP)
20678
25260 (22.16%)
Test#3 (Generic, ZIP)
5295
6704 (26.60%)
Test#1 (Memory)
12587
13813 (9.75%)
TOTAL
51480
62952 (22.28%)

Multithread

i7-8700k

i7-10870H
Test#1 (Integers)
94259
116682 (23.79%)
Test#2 (FP)
152549
187278 (22.77%)
Test#3 (Generic, ZIP)
39735
51518 (29.65%)
Test#1 (Memory)
8527
8390 (-1.61%)
TOTAL
295071
363869 (23.32%)

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
i7-10870H
Test#1 (Integers)
16874
16136 (-4.37%)
Test#2 (FP)
26119
24736 (-5.30%)
Test#3 (Generic, ZIP)
6329
5984 (-5.46%)
Test#1 (Memory)
13708
12696 (-7.39%)
TOTAL
63030
59551 (-5.52%)

Multithread

i7-8700k

i7-10870H
Test#1 (Integers)
105740
117028 (10.67%)
Test#2 (FP)
180520
199876 (10.72%)
Test#3 (Generic, ZIP)
44994
50641 (12.55%)
Test#1 (Memory)
8512
8229 (-3.32%)
TOTAL
339766
375774 (10.60%)

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
i7-10870H
Test#1 (Integers)
31204
30376 (-2.65%)
Test#2 (FP)
27821
27947 (0.45%)
Test#3 (Generic, ZIP)
6568
6510 (-0.88%)
Test#1 (Memory)
15004
14366 (-4.25%)
TOTAL
80598
79200 (-1.73%)

Multithread

i7-8700k

i7-10870H
Test#1 (Integers)
202422
216184 (6.80%)
Test#2 (FP)
186332
210824 (13.14%)
Test#3 (Generic, ZIP)
44958
51574 (14.72%)
Test#1 (Memory)
10054
8465 (-15.80%)
TOTAL
443765
487048 (9.75%)

Performance/W
i7-8700k
i7-10870H
Test#1 (Integers)
2131 points/W
4804 points/W
Test#2 (FP)
1961 points/W
4685 points/W
Test#3 (Generic, ZIP)
473 points/W
1146 points/W
Test#1 (Memory)
106 points/W
188 points/W
TOTAL
4671 points/W
10823 points/W

Performance/GHz
i7-8700k
i7-10870H
Test#1 (Integers)
6639 points/GHz
6075 points/GHz
Test#2 (FP)
5919 points/GHz
5589 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1302 points/GHz
Test#1 (Memory)
3192 points/GHz
2873 points/GHz
TOTAL
17148 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. 3.7.9