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Core i7-7660U vs Ryzen 9 5900X


Description
The i7-7660U is based on Kaby Lake architecture while the 5900X is based on Zen 3.

Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the 5900X gets 814.7 k points.

Summarizing, the 5900X is 6.1 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
a20f12
Core
Kaby Lake-U
Vermeer
Architecture
Base frecuency
2.5 GHz
3.7 GHz
Boost frecuency
4 GHz
4.8 GHz
Socket
BGA 1356
AM4
Cores/Threads
2/4
12/24
TDP
15 W
105 W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
2x256 kB
12x512 kB
Cache L3
4096 kB
2x32768 kB
Date
January 2017
November 2020
Mean monothread perf.
57.46k points
83.5k points
Mean multithread perf.
132.81k points
814.74k 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
5900X
Test#1 (Integers)
22.46k
22.6k (x1.01)
Test#2 (FP)
19.29k
24.85k (x1.29)
Test#3 (Generic, ZIP)
4.77k
11.25k (x2.36)
Test#1 (Memory)
10.94k
24.8k (x2.27)
TOTAL
57.46k
83.5k (x1.45)

Multithread

i7-7660U

5900X
Test#1 (Integers)
56.67k
258.21k (x4.56)
Test#2 (FP)
46.95k
342.24k (x7.29)
Test#3 (Generic, ZIP)
12.36k
155.3k (x12.57)
Test#1 (Memory)
16.84k
59k (x3.5)
TOTAL
132.81k
814.74k (x6.13)

Performance/W
i7-7660U
5900X
Test#1 (Integers)
3778 points/W
2459 points/W
Test#2 (FP)
3130 points/W
3259 points/W
Test#3 (Generic, ZIP)
824 points/W
1479 points/W
Test#1 (Memory)
1122 points/W
562 points/W
TOTAL
8854 points/W
7759 points/W

Performance/GHz
i7-7660U
5900X
Test#1 (Integers)
5614 points/GHz
4709 points/GHz
Test#2 (FP)
4823 points/GHz
5177 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
2343 points/GHz
Test#1 (Memory)
2735 points/GHz
5167 points/GHz
TOTAL
14365 points/GHz
17396 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