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Core i7-8700k vs i5-3470S


Description
The i7-8700k is based on Coffee Lake architecture while the i5-3470S is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-8700k gets a score of 339.8 k points while the i5-3470S gets 93.4 k points.

Summarizing, the i7-8700k is 3.6 times faster than the i5-3470S . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
306a9
Core
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
2.9 GHz
Boost frecuency
4.7 GHz
3.6 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
6/12
4/4
TDP
95 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
October 2017
June 2012
Mean monothread perf.
80.6k points
31.35k points
Mean multithread perf.
443.77k points
93.35k 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
i7-8700k
i5-3470S
Test#1 (Integers)
16.87k
11.41k (x0.68)
Test#2 (FP)
26.12k
10.98k (x0.42)
Test#3 (Generic, ZIP)
6.33k
4.31k (x0.68)
Test#1 (Memory)
13.71k
4.66k (x0.34)
TOTAL
63.03k
31.35k (x0.5)

Multithread

i7-8700k

i5-3470S
Test#1 (Integers)
105.74k
35.73k (x0.34)
Test#2 (FP)
180.52k
36k (x0.2)
Test#3 (Generic, ZIP)
44.99k
14.48k (x0.32)
Test#1 (Memory)
8.51k
7.14k (x0.84)
TOTAL
339.77k
93.35k (x0.27)

Performance/W
i7-8700k
i5-3470S
Test#1 (Integers)
1113 points/W
550 points/W
Test#2 (FP)
1900 points/W
554 points/W
Test#3 (Generic, ZIP)
474 points/W
223 points/W
Test#1 (Memory)
90 points/W
110 points/W
TOTAL
3576 points/W
1436 points/W

Performance/GHz
i7-8700k
i5-3470S
Test#1 (Integers)
3590 points/GHz
3168 points/GHz
Test#2 (FP)
5557 points/GHz
3050 points/GHz
Test#3 (Generic, ZIP)
1347 points/GHz
1197 points/GHz
Test#1 (Memory)
2917 points/GHz
1293 points/GHz
TOTAL
13411 points/GHz
8708 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