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Core i9-7980XE vs i5-11400


Description
The i9-7980XE is based on Skylake architecture while the i5-11400 is based on Rocket Lake.

Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i5-11400 gets 489.3 k points.

Summarizing, the i9-7980XE is 2.5 times faster than the i5-11400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50654
a0671
Core
Skylake-X
Rocket Lake-S
Architecture
Base frecuency
2.6 GHz
2.6 GHz
Boost frecuency
4.4 GHz
4.4 GHz
Socket
LGA 2066
LGA 1200
Cores/Threads
18/36
6/12
TDP
165 W
65 W
Cache L1 (d+i)
18x32+18x32 kB
6x32+6x48 kB
Cache L2
18x1024 kB
6x512 kB
Cache L3
25344 kB
12288 kB
Date
May 2017
March 2021
Mean monothread perf.
76.43k points
86.11k points
Mean multithread perf.
1223.79k points
489.31k 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
i9-7980XE
i5-11400
Test#1 (Integers)
31.16k
31.23k (x1)
Test#2 (FP)
28.13k
25.88k (x0.92)
Test#3 (Generic, ZIP)
6.65k
10.83k (x1.63)
Test#1 (Memory)
10.5k
18.17k (x1.73)
TOTAL
76.43k
86.11k (x1.13)

Multithread

i9-7980XE

i5-11400
Test#1 (Integers)
560.19k
213.85k (x0.38)
Test#2 (FP)
516.97k
195.51k (x0.38)
Test#3 (Generic, ZIP)
123.94k
72.06k (x0.58)
Test#1 (Memory)
22.69k
7.89k (x0.35)
TOTAL
1223.79k
489.31k (x0.4)

Performance/W
i9-7980XE
i5-11400
Test#1 (Integers)
3395 points/W
3290 points/W
Test#2 (FP)
3133 points/W
3008 points/W
Test#3 (Generic, ZIP)
751 points/W
1109 points/W
Test#1 (Memory)
137 points/W
121 points/W
TOTAL
7417 points/W
7528 points/W

Performance/GHz
i9-7980XE
i5-11400
Test#1 (Integers)
7081 points/GHz
7098 points/GHz
Test#2 (FP)
6392 points/GHz
5881 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
2461 points/GHz
Test#1 (Memory)
2386 points/GHz
4130 points/GHz
TOTAL
17371 points/GHz
19570 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