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Ryzen 7 1700X vs Core i7-8700k


Description
The 1700X is based on Zen architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the 1700X gets a score of 372.7 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-8700k is 1.2 times faster than the 1700X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
800f11
906ea
Core
Summit Ridge
Coffee Lake-S
Architecture
Base frecuency
3.4 GHz
3.7 GHz
Boost frecuency
3.8 GHz
4.7 GHz
Socket
AM4
LGA 1151
Cores/Threads
8/16
6/12
TDP
95 W
95 W
Cache L1 (d+i)
8x64+8x32 kB
6x32+6x32 kB
Cache L2
8x512 kB
6x256 kB
Cache L3
2x8192 kB
12288 kB
Date
March 2017
October 2017
Mean monothread perf.
56.76k points
80.6k points
Mean multithread perf.
372.73k points
443.77k 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
1700X
i7-8700k
Test#1 (Integers)
12.5k
16.87k (x1.35)
Test#2 (FP)
22.92k
26.12k (x1.14)
Test#3 (Generic, ZIP)
5.45k
6.33k (x1.16)
Test#1 (Memory)
14.72k
13.71k (x0.93)
TOTAL
55.59k
63.03k (x1.13)

Multithread

1700X

i7-8700k
Test#1 (Integers)
92.51k
105.74k (x1.14)
Test#2 (FP)
144.76k
180.52k (x1.25)
Test#3 (Generic, ZIP)
54.43k
44.99k (x0.83)
Test#1 (Memory)
22.08k
8.51k (x0.39)
TOTAL
313.78k
339.77k (x1.08)

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
1700X
i7-8700k
Test#1 (Integers)
13.72k
31.2k (x2.27)
Test#2 (FP)
22.48k
27.82k (x1.24)
Test#3 (Generic, ZIP)
5.12k
6.57k (x1.28)
Test#1 (Memory)
15.44k
15k (x0.97)
TOTAL
56.76k
80.6k (x1.42)

Multithread

1700X

i7-8700k
Test#1 (Integers)
110.92k
202.42k (x1.82)
Test#2 (FP)
200.56k
186.33k (x0.93)
Test#3 (Generic, ZIP)
54.24k
44.96k (x0.83)
Test#1 (Memory)
7.01k
10.05k (x1.44)
TOTAL
372.73k
443.77k (x1.19)

Performance/W
1700X
i7-8700k
Test#1 (Integers)
1168 points/W
2131 points/W
Test#2 (FP)
2111 points/W
1961 points/W
Test#3 (Generic, ZIP)
571 points/W
473 points/W
Test#1 (Memory)
74 points/W
106 points/W
TOTAL
3923 points/W
4671 points/W

Performance/GHz
1700X
i7-8700k
Test#1 (Integers)
3611 points/GHz
6639 points/GHz
Test#2 (FP)
5916 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1348 points/GHz
1397 points/GHz
Test#1 (Memory)
4063 points/GHz
3192 points/GHz
TOTAL
14938 points/GHz
17148 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