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Core i7-10870H vs i9-10900K


Description
Both models i7-10870H and i9-10900K are based on Comet Lake architecture.

Comet Lake was released in 2019 as a 14nm process-refinement. These models were released as 10th generation CPUs like 10nm Ice Lake. There are model with 2 to 10 cores.

Using the multithread performance as a reference, the i7-10870H gets a score of 363.9 k points while the i9-10900K gets 608.8 k points.

Summarizing, the i9-10900K is 1.7 times faster than the i7-10870H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0652
a0655
Core
Comet Lake-H
Comet Lake-S
Architecture
Base frecuency
2.2 GHz
3.7 GHz
Boost frecuency
5 GHz
5.2 GHz
Socket
FC-BGA 1440
LGA 1200
Cores/Threads
8/16
10/20
TDP
45 W
125 W
Cache L1 (d+i)
8x32+8x32 kB
10x32+10x32 kB
Cache L2
8x256 kB
10x256 kB
Cache L3
16384 kB
20480 kB
Date
September 2020
April 2020

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
i9-10900K
Test#1 (Integers)
17174
19503 (13.56%)
Test#2 (FP)
25260
28014 (10.90%)
Test#3 (Generic, ZIP)
6704
7453 (11.17%)
Test#1 (Memory)
13813
15823 (14.55%)
TOTAL
62952
70792 (12.45%)

Multithread

i7-10870H

i9-10900K
Test#1 (Integers)
116682
194493 (66.69%)
Test#2 (FP)
187278
312589 (66.91%)
Test#3 (Generic, ZIP)
51518
89144 (73.03%)
Test#1 (Memory)
8390
12581 (49.95%)
TOTAL
363869
608807 (67.31%)

Performance/W
i7-10870H
i9-10900K
Test#1 (Integers)
2593 points/W
1556 points/W
Test#2 (FP)
4162 points/W
2501 points/W
Test#3 (Generic, ZIP)
1145 points/W
713 points/W
Test#1 (Memory)
186 points/W
101 points/W
TOTAL
8086 points/W
4870 points/W

Performance/GHz
i7-10870H
i9-10900K
Test#1 (Integers)
3435 points/GHz
3751 points/GHz
Test#2 (FP)
5052 points/GHz
5387 points/GHz
Test#3 (Generic, ZIP)
1341 points/GHz
1433 points/GHz
Test#1 (Memory)
2763 points/GHz
3043 points/GHz
TOTAL
12590 points/GHz
13614 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