Core i7-8700k vs i5-5675R
Description
The i7-8700k is based on Coffee Lake architecture while the i5-5675R is based on Broadwell.
Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the i5-5675R gets 194.2 k points.
Summarizing, the i7-8700k is 2.3 times faster than the i5-5675R. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the i5-5675R gets 194.2 k points.
Summarizing, the i7-8700k is 2.3 times faster than the i5-5675R. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
40671
Core
Coffee Lake-S
Bradwell-H
Base frecuency
3.7 GHz
3.1 GHz
Boost frecuency
4.7 GHz
3.6 GHz
Socket
LGA 1151
BGA1364
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
4096 kB
Date
October 2017
June 2015
Mean monothread perf.
80.6k points
51.43k points
Mean multithread perf.
443.77k points
194.2k points
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
i5-5675R
Test#1 (Integers)
4.13k
4.14k (x1)
Test#2 (FP)
16.96k
14.35k (x0.85)
Test#3 (Generic, ZIP)
5.56k
4.94k (x0.89)
Test#1 (Memory)
12.85k
5.47k (x0.43)
TOTAL
39.5k
28.91k (x0.73)
Multithread
i7-8700k
i5-5675R
Test#1 (Integers)
24.01k
16.02k (x0.67)
Test#2 (FP)
108.69k
54.6k (x0.5)
Test#3 (Generic, ZIP)
36.62k
18.69k (x0.51)
Test#1 (Memory)
9.33k
16.87k (x1.81)
TOTAL
178.64k
106.18k (x0.59)
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
i5-5675R
Test#1 (Integers)
12.92k
12.86k (x1)
Test#2 (FP)
20.68k
16.85k (x0.82)
Test#3 (Generic, ZIP)
5.3k
5.19k (x0.98)
Test#1 (Memory)
12.59k
5.49k (x0.44)
TOTAL
51.48k
40.39k (x0.78)
Multithread
i7-8700k
i5-5675R
Test#1 (Integers)
94.26k
50.07k (x0.53)
Test#2 (FP)
152.55k
64.61k (x0.42)
Test#3 (Generic, ZIP)
39.74k
19.84k (x0.5)
Test#1 (Memory)
8.53k
17.09k (x2)
TOTAL
295.07k
151.6k (x0.51)
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
i5-5675R
Test#1 (Integers)
16.87k
12.88k (x0.76)
Test#2 (FP)
26.12k
18.27k (x0.7)
Test#3 (Generic, ZIP)
6.33k
5.12k (x0.81)
Test#1 (Memory)
13.71k
5.45k (x0.4)
TOTAL
63.03k
41.72k (x0.66)
Multithread
i7-8700k
i5-5675R
Test#1 (Integers)
105.74k
49.91k (x0.47)
Test#2 (FP)
180.52k
70.3k (x0.39)
Test#3 (Generic, ZIP)
44.99k
19.69k (x0.44)
Test#1 (Memory)
8.51k
16.92k (x1.99)
TOTAL
339.77k
156.83k (x0.46)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-8700k
i5-5675R
Test#1 (Integers)
31.2k
21.91k (x0.7)
Test#2 (FP)
27.82k
18.59k (x0.67)
Test#3 (Generic, ZIP)
6.57k
5.2k (x0.79)
Test#1 (Memory)
15k
5.72k (x0.38)
TOTAL
80.6k
51.43k (x0.64)
Multithread
i7-8700k
i5-5675R
Test#1 (Integers)
202.42k
84.92k (x0.42)
Test#2 (FP)
186.33k
72.09k (x0.39)
Test#3 (Generic, ZIP)
44.96k
20.13k (x0.45)
Test#1 (Memory)
10.05k
17.07k (x1.7)
TOTAL
443.77k
194.2k (x0.44)
Performance/W
i7-8700k
i5-5675R
Test#1 (Integers)
2131 points/W
1306 points/W
Test#2 (FP)
1961 points/W
1109 points/W
Test#3 (Generic, ZIP)
473 points/W
310 points/W
Test#1 (Memory)
106 points/W
263 points/W
TOTAL
4671 points/W
2988 points/W
Performance/GHz
i7-8700k
i5-5675R
Test#1 (Integers)
6639 points/GHz
6087 points/GHz
Test#2 (FP)
5919 points/GHz
5164 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1445 points/GHz
Test#1 (Memory)
3192 points/GHz
1590 points/GHz
TOTAL
17148 points/GHz
14286 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4