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Core i7-3930K vs A9 9420


Description
The i7-3930K is based on Sandy Bridge architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the i7-3930K gets a score of 155.9 k points while the 9420 gets 26.2 k points.

Summarizing, the i7-3930K is 6 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206d7
670f00
Core
Sandy Bridge-E
Stoney Ridge
Architecture
Base frecuency
3.2 GHz
3 GHz
Boost frecuency
3.8 GHz
3.6 GHz
Socket
LGA 2011
Micro-BGA
Cores/Threads
6/12
2/2
TDP
130 W
15 W
Cache L1 (d+i)
32+32 kB
96+2x32 kB
Cache L2
256 kB
1024 kB
Cache L3
12288 kB
0 kB
Date
November 2011
April 2017
Mean monothread perf.
27.76k points
33.09k points
Mean multithread perf.
155.86k points
46.33k points

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
i7-3930K
9420
Test#1 (Integers)
10.08k
7.55k (x0.75)
Test#2 (FP)
9.06k
13.9k (x1.54)
Test#3 (Generic, ZIP)
4.45k
3.11k (x0.7)
Test#1 (Memory)
4.16k
2.18k (x0.52)
TOTAL
27.76k
26.74k (x0.96)

Multithread

i7-3930K

9420
Test#1 (Integers)
62.22k
9.09k (x0.15)
Test#2 (FP)
60.25k
12.25k (x0.2)
Test#3 (Generic, ZIP)
30.42k
3k (x0.1)
Test#1 (Memory)
2.97k
1.81k (x0.61)
TOTAL
155.86k
26.15k (x0.17)

Performance/W
i7-3930K
9420
Test#1 (Integers)
479 points/W
606 points/W
Test#2 (FP)
463 points/W
817 points/W
Test#3 (Generic, ZIP)
234 points/W
200 points/W
Test#1 (Memory)
23 points/W
120 points/W
TOTAL
1199 points/W
1743 points/W

Performance/GHz
i7-3930K
9420
Test#1 (Integers)
2653 points/GHz
2096 points/GHz
Test#2 (FP)
2383 points/GHz
3862 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
864 points/GHz
Test#1 (Memory)
1096 points/GHz
604 points/GHz
TOTAL
7304 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