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Core i7-7700K vs i7-10870H


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

Using the multithread performance as a reference, the i7-7700K gets a score of 291.1 k points while the i7-10870H gets 487 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
906e9
a0652
Core
Kaby Lake-S
Comet Lake-H
Architecture
Base frecuency
4.2 GHz
2.2 GHz
Boost frecuency
4.5 GHz
5 GHz
Socket
LGA 1151
FC-BGA 1440
Cores/Threads
4/8
8/16
TDP
95 W
45 W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
16384 kB
Date
September 2016
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
i7-7700K
i7-10870H
Test#1 (Integers)
4629
4766 (2.94%)
Test#2 (FP)
18925
19806 (4.66%)
Test#3 (Generic, ZIP)
6221
6292 (1.14%)
Test#1 (Memory)
13922
14034 (0.80%)
TOTAL
43698
44898 (2.75%)

Multithread

i7-7700K

i7-10870H
Test#1 (Integers)
18529
31208 (68.42%)
Test#2 (FP)
86487
151010 (74.60%)
Test#3 (Generic, ZIP)
28778
50126 (74.18%)
Test#1 (Memory)
9674
8366 (-13.53%)
TOTAL
143468
240709 (67.78%)

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
i7-7700K
i7-10870H
Test#1 (Integers)
17549
16136 (-8.05%)
Test#2 (FP)
27822
24736 (-11.09%)
Test#3 (Generic, ZIP)
6796
5984 (-11.95%)
Test#1 (Memory)
14832
12696 (-14.40%)
TOTAL
66999
59551 (-11.12%)

Multithread

i7-7700K

i7-10870H
Test#1 (Integers)
68395
117028 (71.10%)
Test#2 (FP)
118805
199876 (68.24%)
Test#3 (Generic, ZIP)
33336
50641 (51.91%)
Test#1 (Memory)
17434
8229 (-52.80%)
TOTAL
237970
375774 (57.91%)

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
i7-7700K
i7-10870H
Test#1 (Integers)
30864
30376 (-1.58%)
Test#2 (FP)
27262
27947 (2.52%)
Test#3 (Generic, ZIP)
6421
6510 (1.39%)
Test#1 (Memory)
13994
14366 (2.66%)
TOTAL
78541
79200 (0.84%)

Multithread

i7-7700K

i7-10870H
Test#1 (Integers)
129531
216184 (66.90%)
Test#2 (FP)
122200
210824 (72.52%)
Test#3 (Generic, ZIP)
29617
51574 (74.14%)
Test#1 (Memory)
9751
8465 (-13.19%)
TOTAL
291099
487048 (67.31%)

Performance/W
i7-7700K
i7-10870H
Test#1 (Integers)
1363 points/W
4804 points/W
Test#2 (FP)
1286 points/W
4685 points/W
Test#3 (Generic, ZIP)
312 points/W
1146 points/W
Test#1 (Memory)
103 points/W
188 points/W
TOTAL
3064 points/W
10823 points/W

Performance/GHz
i7-7700K
i7-10870H
Test#1 (Integers)
6859 points/GHz
6075 points/GHz
Test#2 (FP)
6058 points/GHz
5589 points/GHz
Test#3 (Generic, ZIP)
1427 points/GHz
1302 points/GHz
Test#1 (Memory)
3110 points/GHz
2873 points/GHz
TOTAL
17453 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