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Core i3-7100 vs i7-4820K


Description
The i3-7100 is based on Kaby Lake architecture while the i7-4820K is based on Ivy Bridge.

Using the multithread performance as a reference, the i3-7100 gets a score of 100.1 k points while the i7-4820K gets 134.1 k points.

Summarizing, the i7-4820K is 1.3 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
306e4
Core
Kaby Lake-S
Ivy Bridge -E
Architecture
Base frecuency
3.9 GHz
3.7 GHz
Boost frecuency
3.9 GHz
3.9 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
2/4
4/8
TDP
51 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
8192 kB
Date
January 2017
September 2013
Mean monothread perf.
58.55k points
32.49k points
Mean multithread perf.
126.47k points
134.08k 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
i7-4820K
Test#1 (Integers)
14.41k
11.85k (x0.82)
Test#2 (FP)
22.38k
11.84k (x0.53)
Test#3 (Generic, ZIP)
5.45k
4.69k (x0.86)
Test#1 (Memory)
4.96k
4.12k (x0.83)
TOTAL
47.21k
32.49k (x0.69)

Multithread

i3-7100

i7-4820K
Test#1 (Integers)
30.48k
47.65k (x1.56)
Test#2 (FP)
52.08k
54.81k (x1.05)
Test#3 (Generic, ZIP)
12.97k
21.56k (x1.66)
Test#1 (Memory)
4.56k
10.05k (x2.2)
TOTAL
100.1k
134.08k (x1.34)

Performance/W
i3-7100
i7-4820K
Test#1 (Integers)
598 points/W
367 points/W
Test#2 (FP)
1021 points/W
422 points/W
Test#3 (Generic, ZIP)
254 points/W
166 points/W
Test#1 (Memory)
89 points/W
77 points/W
TOTAL
1963 points/W
1031 points/W

Performance/GHz
i3-7100
i7-4820K
Test#1 (Integers)
3695 points/GHz
3039 points/GHz
Test#2 (FP)
5739 points/GHz
3035 points/GHz
Test#3 (Generic, ZIP)
1399 points/GHz
1201 points/GHz
Test#1 (Memory)
1273 points/GHz
1056 points/GHz
TOTAL
12105 points/GHz
8331 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