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Core i7-7660U vs Athlon X4 950


Description
The i7-7660U is based on Kaby Lake architecture while the 950 is based on Excavator.

Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the 950 gets 99.8 k points.

Summarizing, the i7-7660U is 1.3 times faster than the 950. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
660f51
Core
Kaby Lake-U
Bristol Ridge
Architecture
Base frecuency
2.5 GHz
3.5 GHz
Boost frecuency
4 GHz
3.8 GHz
Socket
BGA 1356
AM4
Cores/Threads
2/4
4/4
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
2x96+4x32 kB
Cache L2
2x256 kB
2x1024 kB
Cache L3
4096 kB
0 kB
Date
January 2017
September 2016
Mean monothread perf.
57.46k points
34.93k points
Mean multithread perf.
132.81k points
99.8k 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
950
Test#1 (Integers)
22.46k
12.44k (x0.55)
Test#2 (FP)
19.29k
15.96k (x0.83)
Test#3 (Generic, ZIP)
4.77k
3.54k (x0.74)
Test#1 (Memory)
10.94k
3k (x0.27)
TOTAL
57.46k
34.93k (x0.61)

Multithread

i7-7660U

950
Test#1 (Integers)
56.67k
40.75k (x0.72)
Test#2 (FP)
46.95k
42.07k (x0.9)
Test#3 (Generic, ZIP)
12.36k
12.53k (x1.01)
Test#1 (Memory)
16.84k
4.45k (x0.26)
TOTAL
132.81k
99.8k (x0.75)

Performance/W
i7-7660U
950
Test#1 (Integers)
3778 points/W
627 points/W
Test#2 (FP)
3130 points/W
647 points/W
Test#3 (Generic, ZIP)
824 points/W
193 points/W
Test#1 (Memory)
1122 points/W
68 points/W
TOTAL
8854 points/W
1535 points/W

Performance/GHz
i7-7660U
950
Test#1 (Integers)
5614 points/GHz
3274 points/GHz
Test#2 (FP)
4823 points/GHz
4199 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
931 points/GHz
Test#1 (Memory)
2735 points/GHz
788 points/GHz
TOTAL
14365 points/GHz
9193 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