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Core i7-8700k vs Ryzen 5 3500U


Description
The i7-8700k is based on Coffee Lake architecture while the 3500U is based on Zen+.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the 3500U gets 141 k points.

Summarizing, the i7-8700k is 3.1 times faster than the 3500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
810f81
Core
Coffee Lake-S
Picasso
Architecture
Base frecuency
3.7 GHz
2.1 GHz
Boost frecuency
4.7 GHz
3.7 GHz
Socket
LGA 1151
BGA-FP5
Cores/Threads
6/12
4/8
TDP
95 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
4x64+6x32 kB
Cache L2
6x256 kB
4x512 kB
Cache L3
12288 kB
4096 kB
Date
October 2017
January 2019
Mean monothread perf.
80.6k points
36.64k points
Mean multithread perf.
443.77k points
140.97k 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
3500U
Test#1 (Integers)
4.13k
3.24k (x0.79)
Test#2 (FP)
16.96k
13.16k (x0.78)
Test#3 (Generic, ZIP)
5.56k
4.41k (x0.79)
Test#1 (Memory)
12.85k
3.32k (x0.26)
TOTAL
39.5k
24.12k (x0.61)

Multithread

i7-8700k

3500U
Test#1 (Integers)
24.01k
12.95k (x0.54)
Test#2 (FP)
108.69k
57.84k (x0.53)
Test#3 (Generic, ZIP)
36.62k
21.05k (x0.57)
Test#1 (Memory)
9.33k
3.51k (x0.38)
TOTAL
178.64k
95.36k (x0.53)

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
3500U
Test#1 (Integers)
12.92k
11.98k (x0.93)
Test#2 (FP)
20.68k
15.85k (x0.77)
Test#3 (Generic, ZIP)
5.3k
4.53k (x0.86)
Test#1 (Memory)
12.59k
3.29k (x0.26)
TOTAL
51.48k
35.65k (x0.69)

Multithread

i7-8700k

3500U
Test#1 (Integers)
94.26k
48.28k (x0.51)
Test#2 (FP)
152.55k
74.19k (x0.49)
Test#3 (Generic, ZIP)
39.74k
23.29k (x0.59)
Test#1 (Memory)
8.53k
3.47k (x0.41)
TOTAL
295.07k
149.23k (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
3500U
Test#1 (Integers)
16.87k
11.1k (x0.66)
Test#2 (FP)
26.12k
18.97k (x0.73)
Test#3 (Generic, ZIP)
6.33k
3.9k (x0.62)
Test#1 (Memory)
13.71k
3.39k (x0.25)
TOTAL
63.03k
37.37k (x0.59)

Multithread

i7-8700k

3500U
Test#1 (Integers)
105.74k
45.74k (x0.43)
Test#2 (FP)
180.52k
75.47k (x0.42)
Test#3 (Generic, ZIP)
44.99k
21.89k (x0.49)
Test#1 (Memory)
8.51k
3.49k (x0.41)
TOTAL
339.77k
146.6k (x0.43)

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
3500U
Test#1 (Integers)
31.2k
10.88k (x0.35)
Test#2 (FP)
27.82k
18.09k (x0.65)
Test#3 (Generic, ZIP)
6.57k
4.29k (x0.65)
Test#1 (Memory)
15k
3.36k (x0.22)
TOTAL
80.6k
36.64k (x0.45)

Multithread

i7-8700k

3500U
Test#1 (Integers)
202.42k
42.44k (x0.21)
Test#2 (FP)
186.33k
73.82k (x0.4)
Test#3 (Generic, ZIP)
44.96k
20.76k (x0.46)
Test#1 (Memory)
10.05k
3.96k (x0.39)
TOTAL
443.77k
140.97k (x0.32)

Performance/W
i7-8700k
3500U
Test#1 (Integers)
2131 points/W
2829 points/W
Test#2 (FP)
1961 points/W
4921 points/W
Test#3 (Generic, ZIP)
473 points/W
1384 points/W
Test#1 (Memory)
106 points/W
264 points/W
TOTAL
4671 points/W
9398 points/W

Performance/GHz
i7-8700k
3500U
Test#1 (Integers)
6639 points/GHz
2942 points/GHz
Test#2 (FP)
5919 points/GHz
4890 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1161 points/GHz
Test#1 (Memory)
3192 points/GHz
909 points/GHz
TOTAL
17148 points/GHz
9901 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