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Core i9-7980XE vs i9-10940X


Description
The i9-7980XE is based on Skylake architecture while the i9-10940X is based on Cascade Lake.

Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i9-10940X gets 1088.1 k points.

Summarizing, the i9-7980XE is 1.1 times faster than the i9-10940X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50654
50657
Core
Skylake-X
Cascade Lake-X
Architecture
Base frecuency
2.6 GHz
3.3 GHz
Boost frecuency
4.4 GHz
4.8 GHz
Socket
LGA 2066
LGA 2066
Cores/Threads
18/36
14/28
TDP
165 W
165 W
Cache L1 (d+i)
18x32+18x32 kB
14x32+14x32 kB
Cache L2
18x1024 kB
14x1024 kB
Cache L3
25344 kB
19712 kB
Date
May 2017
November 2019
Mean monothread perf.
76.43k points
72.04k points
Mean multithread perf.
1223.79k points
1088.11k 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
i9-10940X
Test#1 (Integers)
31.16k
29.75k (x0.95)
Test#2 (FP)
28.13k
27.44k (x0.98)
Test#3 (Generic, ZIP)
6.65k
5.81k (x0.87)
Test#1 (Memory)
10.5k
9.05k (x0.86)
TOTAL
76.43k
72.04k (x0.94)

Multithread

i9-7980XE

i9-10940X
Test#1 (Integers)
560.19k
485.37k (x0.87)
Test#2 (FP)
516.97k
472.7k (x0.91)
Test#3 (Generic, ZIP)
123.94k
113.09k (x0.91)
Test#1 (Memory)
22.69k
16.95k (x0.75)
TOTAL
1223.79k
1088.11k (x0.89)

Performance/W
i9-7980XE
i9-10940X
Test#1 (Integers)
3395 points/W
2942 points/W
Test#2 (FP)
3133 points/W
2865 points/W
Test#3 (Generic, ZIP)
751 points/W
685 points/W
Test#1 (Memory)
137 points/W
103 points/W
TOTAL
7417 points/W
6595 points/W

Performance/GHz
i9-7980XE
i9-10940X
Test#1 (Integers)
7081 points/GHz
6197 points/GHz
Test#2 (FP)
6392 points/GHz
5717 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
1210 points/GHz
Test#1 (Memory)
2386 points/GHz
1885 points/GHz
TOTAL
17371 points/GHz
15009 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