Ryzen 7 7840HS vs Core i7-7660U
Description
The 7840HS is based on Zen 4 architecture while the i7-7660U is based on Kaby Lake.
Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the i7-7660U gets 132.8 k points.
Summarizing, the 7840HS is 4.7 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the i7-7660U gets 132.8 k points.
Summarizing, the 7840HS is 4.7 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a70f41
806e9
Core
Phoenix
Kaby Lake-U
Base frecuency
3.8 GHz
2.5 GHz
Boost frecuency
5.1 GHz
4 GHz
Socket
BGA-FP7r2
BGA 1356
Cores/Threads
8/16
2/4
TDP
35 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
2x32+2x32 kB
Cache L2
8x1024 kB
2x256 kB
Cache L3
16384 kB
4096 kB
Date
January 2023
January 2017
Mean monothread perf.
91.11k points
57.46k points
Mean multithread perf.
622.34k points
132.81k 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
7840HS
i7-7660U
Test#1 (Integers)
31.57k
22.46k (x0.71)
Test#2 (FP)
25.2k
19.29k (x0.77)
Test#3 (Generic, ZIP)
12.42k
4.77k (x0.38)
Test#1 (Memory)
21.93k
10.94k (x0.5)
TOTAL
91.11k
57.46k (x0.63)
Multithread
7840HS
i7-7660U
Test#1 (Integers)
265.26k
56.67k (x0.21)
Test#2 (FP)
226.13k
46.95k (x0.21)
Test#3 (Generic, ZIP)
114.46k
12.36k (x0.11)
Test#1 (Memory)
16.49k
16.84k (x1.02)
TOTAL
622.34k
132.81k (x0.21)
Performance/W
7840HS
i7-7660U
Test#1 (Integers)
7579 points/W
3778 points/W
Test#2 (FP)
6461 points/W
3130 points/W
Test#3 (Generic, ZIP)
3270 points/W
824 points/W
Test#1 (Memory)
471 points/W
1122 points/W
TOTAL
17781 points/W
8854 points/W
Performance/GHz
7840HS
i7-7660U
Test#1 (Integers)
6190 points/GHz
5614 points/GHz
Test#2 (FP)
4941 points/GHz
4823 points/GHz
Test#3 (Generic, ZIP)
2436 points/GHz
1193 points/GHz
Test#1 (Memory)
4299 points/GHz
2735 points/GHz
TOTAL
17866 points/GHz
14365 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