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Core i7-10870H vs i7-8700


Description
The i7-10870H is based on Comet Lake architecture while the i7-8700 is based on Coffee Lake.

Using the multithread performance as a reference, the i7-10870H gets a score of 487 k points while the i7-8700 gets 389 k points.

Summarizing, the i7-10870H is 1.3 times faster than the i7-8700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0652
906ea
Core
Comet Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.2 GHz
3.2 GHz
Boost frecuency
5 GHz
4.6 GHz
Socket
FC-BGA 1440
LGA 1151
Cores/Threads
8/16
6/12
TDP
45 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
16384 kB
12288 kB
Date
September 2020
October 2017
Mean monothread perf.
79.2k points
75.01k points
Mean multithread perf.
487.05k points
388.95k 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
i7-10870H
i7-8700
Test#1 (Integers)
4.77k
4.48k (x0.94)
Test#2 (FP)
19.81k
18.31k (x0.92)
Test#3 (Generic, ZIP)
6.29k
5.88k (x0.93)
Test#1 (Memory)
14.03k
13.45k (x0.96)
TOTAL
44.9k
42.12k (x0.94)

Multithread

i7-10870H

i7-8700
Test#1 (Integers)
31.21k
27.35k (x0.88)
Test#2 (FP)
151.01k
124.94k (x0.83)
Test#3 (Generic, ZIP)
50.13k
43.23k (x0.86)
Test#1 (Memory)
8.37k
7.08k (x0.85)
TOTAL
240.71k
202.61k (x0.84)

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
i7-10870H
i7-8700
Test#1 (Integers)
17.17k
16.45k (x0.96)
Test#2 (FP)
25.26k
23.74k (x0.94)
Test#3 (Generic, ZIP)
6.7k
6.24k (x0.93)
Test#1 (Memory)
13.81k
13.43k (x0.97)
TOTAL
62.95k
59.86k (x0.95)

Multithread

i7-10870H

i7-8700
Test#1 (Integers)
116.68k
100.94k (x0.87)
Test#2 (FP)
187.28k
159.09k (x0.85)
Test#3 (Generic, ZIP)
51.52k
43.61k (x0.85)
Test#1 (Memory)
8.39k
6.59k (x0.79)
TOTAL
363.87k
310.23k (x0.85)

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
i7-10870H
i7-8700
Test#1 (Integers)
16.14k
16.57k (x1.03)
Test#2 (FP)
24.74k
25.52k (x1.03)
Test#3 (Generic, ZIP)
5.98k
6.01k (x1.01)
Test#1 (Memory)
12.7k
12.82k (x1.01)
TOTAL
59.55k
60.92k (x1.02)

Multithread

i7-10870H

i7-8700
Test#1 (Integers)
117.03k
101.85k (x0.87)
Test#2 (FP)
199.88k
170.31k (x0.85)
Test#3 (Generic, ZIP)
50.64k
43.12k (x0.85)
Test#1 (Memory)
8.23k
7.11k (x0.86)
TOTAL
375.77k
322.39k (x0.86)

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
i7-10870H
i7-8700
Test#1 (Integers)
30.38k
29.25k (x0.96)
Test#2 (FP)
27.95k
25.98k (x0.93)
Test#3 (Generic, ZIP)
6.51k
6.05k (x0.93)
Test#1 (Memory)
14.37k
13.74k (x0.96)
TOTAL
79.2k
75.01k (x0.95)

Multithread

i7-10870H

i7-8700
Test#1 (Integers)
216.18k
182.56k (x0.84)
Test#2 (FP)
210.82k
159.9k (x0.76)
Test#3 (Generic, ZIP)
51.57k
38.18k (x0.74)
Test#1 (Memory)
8.47k
8.31k (x0.98)
TOTAL
487.05k
388.95k (x0.8)

Performance/W
i7-10870H
i7-8700
Test#1 (Integers)
4804 points/W
2809 points/W
Test#2 (FP)
4685 points/W
2460 points/W
Test#3 (Generic, ZIP)
1146 points/W
587 points/W
Test#1 (Memory)
188 points/W
128 points/W
TOTAL
10823 points/W
5984 points/W

Performance/GHz
i7-10870H
i7-8700
Test#1 (Integers)
6075 points/GHz
6358 points/GHz
Test#2 (FP)
5589 points/GHz
5647 points/GHz
Test#3 (Generic, ZIP)
1302 points/GHz
1316 points/GHz
Test#1 (Memory)
2873 points/GHz
2986 points/GHz
TOTAL
15840 points/GHz
16307 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