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Core i7-6600U vs A9 9420


Description
The i7-6600U is based on Skylake architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the i7-6600U gets a score of 79.2 k points while the 9420 gets 46.3 k points.

Summarizing, the i7-6600U is 1.7 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
670f00
Core
Skylake-U
Stoney Ridge
Architecture
Base frecuency
2.6 GHz
3 GHz
Boost frecuency
3.4 GHz
3.6 GHz
Socket
BGA1356
Micro-BGA
Cores/Threads
2/4
2/2
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
96+2x32 kB
Cache L2
2x256 kB
1024 kB
Cache L3
4096 kB
0 kB
Date
September 2015
April 2017
Mean monothread perf.
39.73k points
33.09k points
Mean multithread perf.
79.22k points
46.33k 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
i7-6600U
9420
Test#1 (Integers)
2.75k
2.56k (x0.93)
Test#2 (FP)
12.23k
9.97k (x0.81)
Test#3 (Generic, ZIP)
3.9k
2.96k (x0.76)
Test#1 (Memory)
5.61k
2.12k (x0.38)
TOTAL
24.48k
17.61k (x0.72)

Multithread

i7-6600U

9420
Test#1 (Integers)
5.23k
3.88k (x0.74)
Test#2 (FP)
25k
9.26k (x0.37)
Test#3 (Generic, ZIP)
8.98k
3.9k (x0.43)
Test#1 (Memory)
4.73k
1.74k (x0.37)
TOTAL
43.95k
18.79k (x0.43)

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
i7-6600U
9420
Test#1 (Integers)
6.76k
8.41k (x1.24)
Test#2 (FP)
9.58k
11.48k (x1.2)
Test#3 (Generic, ZIP)
2.46k
3.29k (x1.34)
Test#1 (Memory)
4.18k
2.24k (x0.54)
TOTAL
22.99k
25.41k (x1.11)

Multithread

i7-6600U

9420
Test#1 (Integers)
14.37k
11.25k (x0.78)
Test#2 (FP)
23.79k
13.69k (x0.58)
Test#3 (Generic, ZIP)
5.71k
2.09k (x0.37)
Test#1 (Memory)
4.29k
1.87k (x0.44)
TOTAL
48.16k
28.89k (x0.6)

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
i7-6600U
9420
Test#1 (Integers)
8.49k
7.55k (x0.89)
Test#2 (FP)
10.92k
13.9k (x1.27)
Test#3 (Generic, ZIP)
2.76k
3.11k (x1.13)
Test#1 (Memory)
4.93k
2.18k (x0.44)
TOTAL
27.1k
26.74k (x0.99)

Multithread

i7-6600U

9420
Test#1 (Integers)
14.11k
9.09k (x0.64)
Test#2 (FP)
20.05k
12.25k (x0.61)
Test#3 (Generic, ZIP)
6.17k
3k (x0.49)
Test#1 (Memory)
4.73k
1.81k (x0.38)
TOTAL
45.05k
26.15k (x0.58)

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
i7-6600U
9420
Test#1 (Integers)
16.72k
11.74k (x0.7)
Test#2 (FP)
14.7k
16.05k (x1.09)
Test#3 (Generic, ZIP)
3.4k
3.26k (x0.96)
Test#1 (Memory)
4.9k
2.05k (x0.42)
TOTAL
39.73k
33.09k (x0.83)

Multithread

i7-6600U

9420
Test#1 (Integers)
33.41k
18.57k (x0.56)
Test#2 (FP)
31.66k
20.11k (x0.64)
Test#3 (Generic, ZIP)
8.18k
5.27k (x0.64)
Test#1 (Memory)
5.97k
2.38k (x0.4)
TOTAL
79.22k
46.33k (x0.58)

Performance/W
i7-6600U
9420
Test#1 (Integers)
2227 points/W
1238 points/W
Test#2 (FP)
2111 points/W
1340 points/W
Test#3 (Generic, ZIP)
546 points/W
352 points/W
Test#1 (Memory)
398 points/W
159 points/W
TOTAL
5282 points/W
3089 points/W

Performance/GHz
i7-6600U
9420
Test#1 (Integers)
4919 points/GHz
3260 points/GHz
Test#2 (FP)
4325 points/GHz
4458 points/GHz
Test#3 (Generic, ZIP)
999 points/GHz
905 points/GHz
Test#1 (Memory)
1441 points/GHz
570 points/GHz
TOTAL
11684 points/GHz
9192 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