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Core i3-6100U vs i5-2500K


Description
The i3-6100U is based on Skylake architecture while the i5-2500K is based on Sandy Bridge.

Using the multithread performance as a reference, the i3-6100U gets a score of 56.7 k points while the i5-2500K gets 111.8 k points.

Summarizing, the i5-2500K is 2 times faster than the i3-6100U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
206a7
Core
Skylake-U
Sandy Bridge
Architecture
Base frecuency
2.3 GHz
3.3 GHz
Boost frecuency
2.3 GHz
3.7 GHz
Socket
BGA1356
LGA 1155
Cores/Threads
2/4
4/4
TDP
15 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+x4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
September 2015
January 2011
Mean monothread perf.
30.73k points
32.85k points
Mean multithread perf.
69.94k points
111.83k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i3-6100U
i5-2500K
Test#1 (Integers)
8.06k
11.84k (x1.47)
Test#2 (FP)
12.85k
10.43k (x0.81)
Test#3 (Generic, ZIP)
3.14k
5.22k (x1.66)
Test#1 (Memory)
4.01k
5.36k (x1.34)
TOTAL
28.06k
32.85k (x1.17)

Multithread

i3-6100U

i5-2500K
Test#1 (Integers)
16.58k
45.51k (x2.74)
Test#2 (FP)
28.88k
40.83k (x1.41)
Test#3 (Generic, ZIP)
7.38k
20.7k (x2.81)
Test#1 (Memory)
3.82k
4.79k (x1.25)
TOTAL
56.66k
111.83k (x1.97)

Performance/W
i3-6100U
i5-2500K
Test#1 (Integers)
1105 points/W
479 points/W
Test#2 (FP)
1925 points/W
430 points/W
Test#3 (Generic, ZIP)
492 points/W
218 points/W
Test#1 (Memory)
254 points/W
50 points/W
TOTAL
3777 points/W
1177 points/W

Performance/GHz
i3-6100U
i5-2500K
Test#1 (Integers)
3506 points/GHz
3200 points/GHz
Test#2 (FP)
5587 points/GHz
2818 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
1411 points/GHz
Test#1 (Memory)
1742 points/GHz
1449 points/GHz
TOTAL
12201 points/GHz
8878 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