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Core i3-7100U vs i7-3930K


Description
The i3-7100U is based on Kaby Lake architecture while the i7-3930K is based on Sandy Bridge.

Using the multithread performance as a reference, the i3-7100U gets a score of 60.5 k points while the i7-3930K gets 155.9 k points.

Summarizing, the i7-3930K is 2.6 times faster than the i3-7100U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
206d7
Core
Kaby Lake-U
Sandy Bridge-E
Architecture
Base frecuency
2.4 GHz
3.2 GHz
Boost frecuency
2.4 GHz
3.8 GHz
Socket
BGA 1356
LGA 2011
Cores/Threads
2/4
6/12
TDP
15 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
12288 kB
Date
August 2016
November 2011
Mean monothread perf.
33.38k points
27.76k points
Mean multithread perf.
79.6k points
155.86k 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
i3-7100U
i7-3930K
Test#1 (Integers)
8.76k
10.08k (x1.15)
Test#2 (FP)
13.49k
9.06k (x0.67)
Test#3 (Generic, ZIP)
3.21k
4.45k (x1.39)
Test#1 (Memory)
3.9k
4.16k (x1.07)
TOTAL
29.36k
27.76k (x0.95)

Multithread

i3-7100U

i7-3930K
Test#1 (Integers)
18.33k
62.22k (x3.39)
Test#2 (FP)
31.08k
60.25k (x1.94)
Test#3 (Generic, ZIP)
7.5k
30.42k (x4.06)
Test#1 (Memory)
3.61k
2.97k (x0.82)
TOTAL
60.52k
155.86k (x2.58)

Performance/W
i3-7100U
i7-3930K
Test#1 (Integers)
1222 points/W
479 points/W
Test#2 (FP)
2072 points/W
463 points/W
Test#3 (Generic, ZIP)
500 points/W
234 points/W
Test#1 (Memory)
240 points/W
23 points/W
TOTAL
4035 points/W
1199 points/W

Performance/GHz
i3-7100U
i7-3930K
Test#1 (Integers)
3652 points/GHz
2653 points/GHz
Test#2 (FP)
5622 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
1337 points/GHz
1172 points/GHz
Test#1 (Memory)
1624 points/GHz
1096 points/GHz
TOTAL
12235 points/GHz
7304 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