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Core i7-5820K vs A9 9420


Description
The i7-5820K is based on Haswell architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the 9420 gets 26.2 k points.

Summarizing, the i7-5820K is 4.9 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
670f00
Core
Haswell-E
Stoney Ridge
Architecture
Base frecuency
3.3 GHz
3 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
LGA 1150
Micro-BGA
Cores/Threads
6/12
2/2
TDP
140 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
96+2x32 kB
Cache L2
6x256 kB
1024 kB
Cache L3
15360 kB
0 kB
Date
September 2014
April 2017
Mean monothread perf.
31.53k points
33.09k points
Mean multithread perf.
129.06k 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
i7-5820K
9420
Test#1 (Integers)
3.82k
2.56k (x0.67)
Test#2 (FP)
9.64k
9.97k (x1.03)
Test#3 (Generic, ZIP)
4.29k
2.96k (x0.69)
Test#1 (Memory)
3.78k
2.12k (x0.56)
TOTAL
21.53k
17.61k (x0.82)

Multithread

i7-5820K

9420
Test#1 (Integers)
18.07k
3.88k (x0.21)
Test#2 (FP)
64.25k
9.26k (x0.14)
Test#3 (Generic, ZIP)
27.03k
3.9k (x0.14)
Test#1 (Memory)
8.03k
1.74k (x0.22)
TOTAL
117.38k
18.79k (x0.16)

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
i7-5820K
9420
Test#1 (Integers)
12.03k
7.55k (x0.63)
Test#2 (FP)
11.23k
13.9k (x1.24)
Test#3 (Generic, ZIP)
4.55k
3.11k (x0.68)
Test#1 (Memory)
3.72k
2.18k (x0.59)
TOTAL
31.53k
26.74k (x0.85)

Multithread

i7-5820K

9420
Test#1 (Integers)
49.48k
9.09k (x0.18)
Test#2 (FP)
52.21k
12.25k (x0.23)
Test#3 (Generic, ZIP)
19.7k
3k (x0.15)
Test#1 (Memory)
7.67k
1.81k (x0.24)
TOTAL
129.06k
26.15k (x0.2)

Performance/W
i7-5820K
9420
Test#1 (Integers)
353 points/W
606 points/W
Test#2 (FP)
373 points/W
817 points/W
Test#3 (Generic, ZIP)
141 points/W
200 points/W
Test#1 (Memory)
55 points/W
120 points/W
TOTAL
922 points/W
1743 points/W

Performance/GHz
i7-5820K
9420
Test#1 (Integers)
3343 points/GHz
2096 points/GHz
Test#2 (FP)
3119 points/GHz
3862 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
864 points/GHz
Test#1 (Memory)
1033 points/GHz
604 points/GHz
TOTAL
8759 points/GHz
7427 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