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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 107.9 k points.

Summarizing, the i7-8700k is 3.1 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
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
12288 kB
6144 kB
Date
October 2017
Jun 2012

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)
16874
11860 (-29.71%)
Test#2 (FP)
26119
11531 (-55.85%)
Test#3 (Generic, ZIP)
6329
4498 (-28.93%)
Test#1 (Memory)
13708
4696 (-65.75%)
TOTAL
63030
32585 (-48.30%)

Multithread

i7-8700k

i5-3470S
Test#1 (Integers)
105740
42348 (-59.95%)
Test#2 (FP)
180520
41181 (-77.19%)
Test#3 (Generic, ZIP)
44994
16139 (-64.13%)
Test#1 (Memory)
8512
8264 (-2.91%)
TOTAL
339766
107932 (-68.23%)

Performance/W
i7-8700k
i5-3470S
Test#1 (Integers)
1113 points/W
652 points/W
Test#2 (FP)
1900 points/W
634 points/W
Test#3 (Generic, ZIP)
474 points/W
248 points/W
Test#1 (Memory)
90 points/W
127 points/W
TOTAL
3576 points/W
1660 points/W

Performance/GHz
i7-8700k
i5-3470S
Test#1 (Integers)
3590 points/GHz
3294 points/GHz
Test#2 (FP)
5557 points/GHz
3203 points/GHz
Test#3 (Generic, ZIP)
1347 points/GHz
1249 points/GHz
Test#1 (Memory)
2917 points/GHz
1304 points/GHz
TOTAL
13411 points/GHz
9051 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. 3.7.9