| | | | | | |

Core i7-7660U vs Ryzen 5 3400G


Description
The i7-7660U is based on Kaby Lake architecture while the 3400G is based on Zen+.

Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the 3400G gets 200.3 k points.

Summarizing, the 3400G is 1.5 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
810f81
Core
Kaby Lake-U
Picasso
Architecture
Base frecuency
2.5 GHz
3.7 GHz
Boost frecuency
4 GHz
4.2 GHz
Socket
BGA 1356
AM4
Cores/Threads
2/4
4/8
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x64+4x32 kB
Cache L2
2x256 kB
4x512 kB
Cache L3
4096 kB
4096 kB
Date
January 2017
July 2019
Mean monothread perf.
57.46k points
50.25k points
Mean multithread perf.
132.81k points
200.34k 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
i7-7660U
3400G
Test#1 (Integers)
22.46k
14.58k (x0.65)
Test#2 (FP)
19.29k
23.98k (x1.24)
Test#3 (Generic, ZIP)
4.77k
5.35k (x1.12)
Test#1 (Memory)
10.94k
6.34k (x0.58)
TOTAL
57.46k
50.25k (x0.87)

Multithread

i7-7660U

3400G
Test#1 (Integers)
56.67k
57.37k (x1.01)
Test#2 (FP)
46.95k
107.03k (x2.28)
Test#3 (Generic, ZIP)
12.36k
28.9k (x2.34)
Test#1 (Memory)
16.84k
7.05k (x0.42)
TOTAL
132.81k
200.34k (x1.51)

Performance/W
i7-7660U
3400G
Test#1 (Integers)
3778 points/W
883 points/W
Test#2 (FP)
3130 points/W
1647 points/W
Test#3 (Generic, ZIP)
824 points/W
445 points/W
Test#1 (Memory)
1122 points/W
108 points/W
TOTAL
8854 points/W
3082 points/W

Performance/GHz
i7-7660U
3400G
Test#1 (Integers)
5614 points/GHz
3471 points/GHz
Test#2 (FP)
4823 points/GHz
5710 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
1275 points/GHz
Test#1 (Memory)
2735 points/GHz
1509 points/GHz
TOTAL
14365 points/GHz
11965 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