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Core i9-11900H vs i7-8700k


Description
The i9-11900H is based on Tiger Lake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i9-11900H gets a score of 584.5 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i9-11900H is 1.3 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806d1
906ea
Core
Tiger Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.5 GHz
3.7 GHz
Boost frecuency
4.9 GHz
4.7 GHz
Socket
BGA 1787
LGA 1151
Cores/Threads
8/16
6/12
TDP
45 W
95 W
Cache L1 (d+i)
8x32+8x48 kB
6x32+6x32 kB
Cache L2
8x1280 kB
6x256 kB
Cache L3
24576 kB
12288 kB
Date
May 2021
October 2017
Mean monothread perf.
89.19k points
80.6k points
Mean multithread perf.
584.47k points
443.77k points

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
i9-11900H
i7-8700k
Test#1 (Integers)
33.38k
31.2k (x0.93)
Test#2 (FP)
27.12k
27.82k (x1.03)
Test#3 (Generic, ZIP)
11.69k
6.57k (x0.56)
Test#1 (Memory)
17k
15k (x0.88)
TOTAL
89.19k
80.6k (x0.9)

Multithread

i9-11900H

i7-8700k
Test#1 (Integers)
249.83k
202.42k (x0.81)
Test#2 (FP)
237.26k
186.33k (x0.79)
Test#3 (Generic, ZIP)
84.18k
44.96k (x0.53)
Test#1 (Memory)
13.2k
10.05k (x0.76)
TOTAL
584.47k
443.77k (x0.76)

Performance/W
i9-11900H
i7-8700k
Test#1 (Integers)
5552 points/W
2131 points/W
Test#2 (FP)
5272 points/W
1961 points/W
Test#3 (Generic, ZIP)
1871 points/W
473 points/W
Test#1 (Memory)
293 points/W
106 points/W
TOTAL
12988 points/W
4671 points/W

Performance/GHz
i9-11900H
i7-8700k
Test#1 (Integers)
6812 points/GHz
6639 points/GHz
Test#2 (FP)
5535 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2386 points/GHz
1397 points/GHz
Test#1 (Memory)
3469 points/GHz
3192 points/GHz
TOTAL
18202 points/GHz
17148 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