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Core i7-4820K vs i3-7100U


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

Using the multithread performance as a reference, the i7-4820K gets a score of 134.1 k points while the i3-7100U gets 60.5 k points.

Summarizing, the i7-4820K is 2.2 times faster than the i3-7100U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
806e9
Core
Ivy Bridge -E
Kaby Lake-U
Architecture
Base frecuency
3.7 GHz
2.4 GHz
Boost frecuency
3.9 GHz
2.4 GHz
Socket
LGA 1155
BGA 1356
Cores/Threads
4/8
2/4
TDP
130 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
September 2013
August 2016
Mean monothread perf.
32.49k points
33.38k points
Mean multithread perf.
134.08k points
79.6k 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
i7-4820K
i3-7100U
Test#1 (Integers)
11.85k
8.76k (x0.74)
Test#2 (FP)
11.84k
13.49k (x1.14)
Test#3 (Generic, ZIP)
4.69k
3.21k (x0.69)
Test#1 (Memory)
4.12k
3.9k (x0.95)
TOTAL
32.49k
29.36k (x0.9)

Multithread

i7-4820K

i3-7100U
Test#1 (Integers)
47.65k
18.33k (x0.38)
Test#2 (FP)
54.81k
31.08k (x0.57)
Test#3 (Generic, ZIP)
21.56k
7.5k (x0.35)
Test#1 (Memory)
10.05k
3.61k (x0.36)
TOTAL
134.08k
60.52k (x0.45)

Performance/W
i7-4820K
i3-7100U
Test#1 (Integers)
367 points/W
1222 points/W
Test#2 (FP)
422 points/W
2072 points/W
Test#3 (Generic, ZIP)
166 points/W
500 points/W
Test#1 (Memory)
77 points/W
240 points/W
TOTAL
1031 points/W
4035 points/W

Performance/GHz
i7-4820K
i3-7100U
Test#1 (Integers)
3039 points/GHz
3652 points/GHz
Test#2 (FP)
3035 points/GHz
5622 points/GHz
Test#3 (Generic, ZIP)
1201 points/GHz
1337 points/GHz
Test#1 (Memory)
1056 points/GHz
1624 points/GHz
TOTAL
8331 points/GHz
12235 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