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Core i7-8700k vs i5-3570K


Description
The i7-8700k is based on Coffee Lake architecture while the i5-3570K 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 i5-3570K gets 120.3 k points.

Summarizing, the i7-8700k is 2.8 times faster than the i5-3570K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
306a9
Core
Coffee Lake-S
Ivy Bridge
Architecture
Base frecuency
3.7 GHz
3.4 GHz
Boost frecuency
4.7 GHz
3.8 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
6/12
4/4
TDP
95 W
77 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+x4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
October 2017
April 2012

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-8700k
i5-3570K
Test#1 (Integers)
4127
3850 (-6.71%)
Test#2 (FP)
16959
10725 (-36.76%)
Test#3 (Generic, ZIP)
5564
4856 (-12.73%)
Test#1 (Memory)
12845
5118 (-60.15%)
TOTAL
39495
24550 (-37.84%)

Multithread

i7-8700k

i5-3570K
Test#1 (Integers)
24011
14335 (-40.30%)
Test#2 (FP)
108690
40230 (-62.99%)
Test#3 (Generic, ZIP)
36616
18008 (-50.82%)
Test#1 (Memory)
9327
7152 (-23.31%)
TOTAL
178644
79726 (-55.37%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-8700k
i5-3570K
Test#1 (Integers)
12920
12755 (-1.27%)
Test#2 (FP)
20678
11728 (-43.28%)
Test#3 (Generic, ZIP)
5295
5005 (-5.48%)
Test#1 (Memory)
12587
5092 (-59.55%)
TOTAL
51480
34579 (-32.83%)

Multithread

i7-8700k

i5-3570K
Test#1 (Integers)
94259
48067 (-49.01%)
Test#2 (FP)
152549
43088 (-71.75%)
Test#3 (Generic, ZIP)
39735
18341 (-53.84%)
Test#1 (Memory)
8527
7096 (-16.79%)
TOTAL
295071
116592 (-60.49%)

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
i5-3570K
Test#1 (Integers)
16874
12522 (-25.79%)
Test#2 (FP)
26119
12129 (-53.56%)
Test#3 (Generic, ZIP)
6329
4910 (-22.42%)
Test#1 (Memory)
13708
5016 (-63.41%)
TOTAL
63030
34577 (-45.14%)

Multithread

i7-8700k

i5-3570K
Test#1 (Integers)
105740
47475 (-55.10%)
Test#2 (FP)
180520
46261 (-74.37%)
Test#3 (Generic, ZIP)
44994
18400 (-59.11%)
Test#1 (Memory)
8512
8168 (-4.04%)
TOTAL
339766
120303 (-64.59%)

Performance/W
i7-8700k
i5-3570K
Test#1 (Integers)
1113 points/W
617 points/W
Test#2 (FP)
1900 points/W
601 points/W
Test#3 (Generic, ZIP)
474 points/W
239 points/W
Test#1 (Memory)
90 points/W
106 points/W
TOTAL
3576 points/W
1562 points/W

Performance/GHz
i7-8700k
i5-3570K
Test#1 (Integers)
3590 points/GHz
3295 points/GHz
Test#2 (FP)
5557 points/GHz
3192 points/GHz
Test#3 (Generic, ZIP)
1347 points/GHz
1292 points/GHz
Test#1 (Memory)
2917 points/GHz
1320 points/GHz
TOTAL
13411 points/GHz
9099 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