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Ryzen 9 4900HS vs Core i7-8700k


Description
The 4900HS is based on Zen 2 architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the 4900HS gets a score of 360.6 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-8700k is 1.2 times faster than the 4900HS. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
860f01
906ea
Core
Renoir
Coffee Lake-S
Architecture
Base frecuency
3 GHz
3.7 GHz
Boost frecuency
4.3 GHz
4.7 GHz
Socket
BGA 1140
LGA 1151
Cores/Threads
8/16
6/12
TDP
35 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x512 kB
6x256 kB
Cache L3
2x4096 kB
12288 kB
Date
March 2020
October 2017
Mean monothread perf.
53k points
80.6k points
Mean multithread perf.
360.57k points
443.77k points

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
4900HS
i7-8700k
Test#1 (Integers)
14.87k
31.2k (x2.1)
Test#2 (FP)
21.53k
27.82k (x1.29)
Test#3 (Generic, ZIP)
8.39k
6.57k (x0.78)
Test#1 (Memory)
8.21k
15k (x1.83)
TOTAL
53k
80.6k (x1.52)

Multithread

4900HS

i7-8700k
Test#1 (Integers)
124.63k
202.42k (x1.62)
Test#2 (FP)
158.62k
186.33k (x1.17)
Test#3 (Generic, ZIP)
69.79k
44.96k (x0.64)
Test#1 (Memory)
7.53k
10.05k (x1.33)
TOTAL
360.57k
443.77k (x1.23)

Performance/W
4900HS
i7-8700k
Test#1 (Integers)
3561 points/W
2131 points/W
Test#2 (FP)
4532 points/W
1961 points/W
Test#3 (Generic, ZIP)
1994 points/W
473 points/W
Test#1 (Memory)
215 points/W
106 points/W
TOTAL
10302 points/W
4671 points/W

Performance/GHz
4900HS
i7-8700k
Test#1 (Integers)
3457 points/GHz
6639 points/GHz
Test#2 (FP)
5007 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1952 points/GHz
1397 points/GHz
Test#1 (Memory)
1910 points/GHz
3192 points/GHz
TOTAL
12326 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