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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 291.1 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

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)
4766
4629 (-2.86%)
Test#2 (FP)
19806
18925 (-4.45%)
Test#3 (Generic, ZIP)
6292
6221 (-1.13%)
Test#1 (Memory)
14034
13922 (-0.80%)
TOTAL
44898
43698 (-2.67%)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
31208
18529 (-40.63%)
Test#2 (FP)
151010
86487 (-42.73%)
Test#3 (Generic, ZIP)
50126
28778 (-42.59%)
Test#1 (Memory)
8366
9674 (15.64%)
TOTAL
240709
143468 (-40.40%)

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)
16136
17549 (8.76%)
Test#2 (FP)
24736
27822 (12.48%)
Test#3 (Generic, ZIP)
5984
6796 (13.57%)
Test#1 (Memory)
12696
14832 (16.82%)
TOTAL
59551
66999 (12.51%)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
117028
68395 (-41.56%)
Test#2 (FP)
199876
118805 (-40.56%)
Test#3 (Generic, ZIP)
50641
33336 (-34.17%)
Test#1 (Memory)
8229
17434 (111.86%)
TOTAL
375774
237970 (-36.67%)

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)
30376
30864 (1.60%)
Test#2 (FP)
27947
27262 (-2.45%)
Test#3 (Generic, ZIP)
6510
6421 (-1.37%)
Test#1 (Memory)
14366
13994 (-2.59%)
TOTAL
79200
78541 (-0.83%)

Multithread

i7-10870H

i7-7700K
Test#1 (Integers)
216184
129531 (-40.08%)
Test#2 (FP)
210824
122200 (-42.04%)
Test#3 (Generic, ZIP)
51574
29617 (-42.57%)
Test#1 (Memory)
8465
9751 (15.19%)
TOTAL
487048
291099 (-40.23%)

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

Performance/GHz
i7-10870H
i7-7700K
Test#1 (Integers)
6075 points/GHz
6859 points/GHz
Test#2 (FP)
5589 points/GHz
6058 points/GHz
Test#3 (Generic, ZIP)
1302 points/GHz
1427 points/GHz
Test#1 (Memory)
2873 points/GHz
3110 points/GHz
TOTAL
15840 points/GHz
17453 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