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Core i3-7100 vs i5-2500K


Description
The i3-7100 is based on Kaby Lake architecture while the i5-2500K is based on Sandy Bridge.

Using the multithread performance as a reference, the i3-7100 gets a score of 100.1 k points while the i5-2500K gets 111.8 k points.

Summarizing, the i5-2500K is 1.1 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
206a7
Core
Kaby Lake-S
Sandy Bridge
Architecture
Base frecuency
3.9 GHz
3.3 GHz
Boost frecuency
3.9 GHz
3.7 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
2/4
4/4
TDP
51 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
January 2017
January 2011
Mean monothread perf.
57.86k points
32.85k points
Mean multithread perf.
124.8k 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
i3-7100
i5-2500K
Test#1 (Integers)
14.41k
11.84k (x0.82)
Test#2 (FP)
22.38k
10.43k (x0.47)
Test#3 (Generic, ZIP)
5.45k
5.22k (x0.96)
Test#1 (Memory)
4.96k
5.36k (x1.08)
TOTAL
47.21k
32.85k (x0.7)

Multithread

i3-7100

i5-2500K
Test#1 (Integers)
30.48k
45.51k (x1.49)
Test#2 (FP)
52.08k
40.83k (x0.78)
Test#3 (Generic, ZIP)
12.97k
20.7k (x1.6)
Test#1 (Memory)
4.56k
4.79k (x1.05)
TOTAL
100.1k
111.83k (x1.12)

Performance/W
i3-7100
i5-2500K
Test#1 (Integers)
598 points/W
479 points/W
Test#2 (FP)
1021 points/W
430 points/W
Test#3 (Generic, ZIP)
254 points/W
218 points/W
Test#1 (Memory)
89 points/W
50 points/W
TOTAL
1963 points/W
1177 points/W

Performance/GHz
i3-7100
i5-2500K
Test#1 (Integers)
3695 points/GHz
3200 points/GHz
Test#2 (FP)
5739 points/GHz
2818 points/GHz
Test#3 (Generic, ZIP)
1399 points/GHz
1411 points/GHz
Test#1 (Memory)
1273 points/GHz
1449 points/GHz
TOTAL
12105 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