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Core i9-10940X vs i5-8250U


Description
The i9-10940X is based on Cascade Lake architecture while the i5-8250U is based on Kaby Lake.

Using the multithread performance as a reference, the i9-10940X gets a score of 1088.1 k points while the i5-8250U gets 161.3 k points.

Summarizing, the i9-10940X is 6.7 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50657
806ea
Core
Cascade Lake-X
Kaby Lake-R
Architecture
Base frecuency
3.3 GHz
1.6 GHz
Boost frecuency
4.8 GHz
3.4 GHz
Socket
LGA 2066
BGA1356
Cores/Threads
14/28
4/8
TDP
165 W
15 W
Cache L1 (d+i)
14x32+14x32 kB
4x32+4x32 kB
Cache L2
14x1024 kB
4x256 kB
Cache L3
19712 kB
6144 kB
Date
November 2019
August 2017
Mean monothread perf.
72.04k points
54.31k points
Mean multithread perf.
1088.11k points
161.26k 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
i9-10940X
i5-8250U
Test#1 (Integers)
29.75k
22.11k (x0.74)
Test#2 (FP)
27.44k
19.64k (x0.72)
Test#3 (Generic, ZIP)
5.81k
4.54k (x0.78)
Test#1 (Memory)
9.05k
8.03k (x0.89)
TOTAL
72.04k
54.31k (x0.75)

Multithread

i9-10940X

i5-8250U
Test#1 (Integers)
485.37k
74.19k (x0.15)
Test#2 (FP)
472.7k
66.27k (x0.14)
Test#3 (Generic, ZIP)
113.09k
15.97k (x0.14)
Test#1 (Memory)
16.95k
4.83k (x0.29)
TOTAL
1088.11k
161.26k (x0.15)

Performance/W
i9-10940X
i5-8250U
Test#1 (Integers)
2942 points/W
4946 points/W
Test#2 (FP)
2865 points/W
4418 points/W
Test#3 (Generic, ZIP)
685 points/W
1065 points/W
Test#1 (Memory)
103 points/W
322 points/W
TOTAL
6595 points/W
10751 points/W

Performance/GHz
i9-10940X
i5-8250U
Test#1 (Integers)
6197 points/GHz
6503 points/GHz
Test#2 (FP)
5717 points/GHz
5777 points/GHz
Test#3 (Generic, ZIP)
1210 points/GHz
1334 points/GHz
Test#1 (Memory)
1885 points/GHz
2361 points/GHz
TOTAL
15009 points/GHz
15975 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