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Core i9-11900H vs i9-7980XE


Description
The i9-11900H is based on Tiger Lake architecture while the i9-7980XE is based on Skylake.

Using the multithread performance as a reference, the i9-11900H gets a score of 584.5 k points while the i9-7980XE gets 1223.8 k points.

Summarizing, the i9-7980XE is 2.1 times faster than the i9-11900H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806d1
50654
Core
Tiger Lake-H
Skylake-X
Architecture
Base frecuency
2.5 GHz
2.6 GHz
Boost frecuency
4.9 GHz
4.4 GHz
Socket
BGA 1787
LGA 2066
Cores/Threads
8/16
18/36
TDP
45 W
165 W
Cache L1 (d+i)
8x32+8x48 kB
18x32+18x32 kB
Cache L2
8x1280 kB
18x1024 kB
Cache L3
24576 kB
25344 kB
Date
May 2021
May 2017
Mean monothread perf.
89.19k points
76.43k points
Mean multithread perf.
584.47k points
1223.79k 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
i9-7980XE
Test#1 (Integers)
33.38k
31.16k (x0.93)
Test#2 (FP)
27.12k
28.13k (x1.04)
Test#3 (Generic, ZIP)
11.69k
6.65k (x0.57)
Test#1 (Memory)
17k
10.5k (x0.62)
TOTAL
89.19k
76.43k (x0.86)

Multithread

i9-11900H

i9-7980XE
Test#1 (Integers)
249.83k
560.19k (x2.24)
Test#2 (FP)
237.26k
516.97k (x2.18)
Test#3 (Generic, ZIP)
84.18k
123.94k (x1.47)
Test#1 (Memory)
13.2k
22.69k (x1.72)
TOTAL
584.47k
1223.79k (x2.09)

Performance/W
i9-11900H
i9-7980XE
Test#1 (Integers)
5552 points/W
3395 points/W
Test#2 (FP)
5272 points/W
3133 points/W
Test#3 (Generic, ZIP)
1871 points/W
751 points/W
Test#1 (Memory)
293 points/W
137 points/W
TOTAL
12988 points/W
7417 points/W

Performance/GHz
i9-11900H
i9-7980XE
Test#1 (Integers)
6812 points/GHz
7081 points/GHz
Test#2 (FP)
5535 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
2386 points/GHz
1512 points/GHz
Test#1 (Memory)
3469 points/GHz
2386 points/GHz
TOTAL
18202 points/GHz
17371 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