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Core i7-10870H vs i7-7700K


Description
The i7-10870H is based on Comet Lake architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the i7-10870H gets a score of 487 k points while the i7-7700K gets 289.9 k points.

Summarizing, the i7-10870H is 1.7 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0652
906e9
Core
Comet Lake-H
Kaby Lake-S
Architecture
Base frecuency
2.2 GHz
4.2 GHz
Boost frecuency
5 GHz
4.5 GHz
Socket
FC-BGA 1440
LGA 1151
Cores/Threads
8/16
4/8
TDP
45 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
32+32 kB
Cache L2
8x256 kB
256 kB
Cache L3
16384 kB
8192 kB
Date
September 2020
September 2016
Mean monothread perf.
79.2k points
76.98k points
Mean multithread perf.
487.05k points
289.9k 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
i7-7700K
Test#1 (Integers)
4.77k
4.63k (x0.97)
Test#2 (FP)
19.81k
18.92k (x0.96)
Test#3 (Generic, ZIP)
6.29k
6.22k (x0.99)
Test#1 (Memory)
14.03k
13.92k (x0.99)
TOTAL
44.9k
43.7k (x0.97)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
31.21k
18.53k (x0.59)
Test#2 (FP)
151.01k
86.49k (x0.57)
Test#3 (Generic, ZIP)
50.13k
28.78k (x0.57)
Test#1 (Memory)
8.37k
9.67k (x1.16)
TOTAL
240.71k
143.47k (x0.6)

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
i7-7700K
Test#1 (Integers)
16.14k
17.55k (x1.09)
Test#2 (FP)
24.74k
27.82k (x1.12)
Test#3 (Generic, ZIP)
5.98k
6.8k (x1.14)
Test#1 (Memory)
12.7k
14.83k (x1.17)
TOTAL
59.55k
67k (x1.13)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
117.03k
68.4k (x0.58)
Test#2 (FP)
199.88k
118.8k (x0.59)
Test#3 (Generic, ZIP)
50.64k
33.34k (x0.66)
Test#1 (Memory)
8.23k
17.43k (x2.12)
TOTAL
375.77k
237.97k (x0.63)

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
i7-7700K
Test#1 (Integers)
30.38k
30.47k (x1)
Test#2 (FP)
27.95k
26.94k (x0.96)
Test#3 (Generic, ZIP)
6.51k
6.25k (x0.96)
Test#1 (Memory)
14.37k
13.32k (x0.93)
TOTAL
79.2k
76.98k (x0.97)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
216.18k
127.81k (x0.59)
Test#2 (FP)
210.82k
123.7k (x0.59)
Test#3 (Generic, ZIP)
51.57k
29.34k (x0.57)
Test#1 (Memory)
8.47k
9.05k (x1.07)
TOTAL
487.05k
289.9k (x0.6)

Performance/W
i7-10870H
i7-7700K
Test#1 (Integers)
4804 points/W
1345 points/W
Test#2 (FP)
4685 points/W
1302 points/W
Test#3 (Generic, ZIP)
1146 points/W
309 points/W
Test#1 (Memory)
188 points/W
95 points/W
TOTAL
10823 points/W
3052 points/W

Performance/GHz
i7-10870H
i7-7700K
Test#1 (Integers)
6075 points/GHz
6770 points/GHz
Test#2 (FP)
5589 points/GHz
5987 points/GHz
Test#3 (Generic, ZIP)
1302 points/GHz
1389 points/GHz
Test#1 (Memory)
2873 points/GHz
2960 points/GHz
TOTAL
15840 points/GHz
17106 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