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A9 9420 vs Xeon E5-2651 v2


Description
The 9420 is based on Excavator architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the 9420 gets a score of 26.2 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the E5-2651 v2 is 16.3 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
670f00
306e4
Core
Stoney Ridge
Ivy Bridge-EP
Architecture
Base frecuency
3 GHz
1.8 GHz
Boost frecuency
3.6 GHz
2.2 GHz
Socket
Micro-BGA
LGA 2011
Cores/Threads
2/2
12/24
TDP
15 W
W
Cache L1 (d+i)
96+2x32 kB
12x32+12x32 kB
Cache L2
1024 kB
12x256 kB
Cache L3
0 kB
30720 kB
Date
April 2017
October 2013
Mean monothread perf.
33.09k points
17.75k points
Mean multithread perf.
46.33k points
426.18k points

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
9420
E5-2651 v2
Test#1 (Integers)
8.41k
6.75k (x0.8)
Test#2 (FP)
11.48k
6.05k (x0.53)
Test#3 (Generic, ZIP)
3.29k
2.61k (x0.79)
Test#1 (Memory)
2.24k
2.26k (x1.01)
TOTAL
25.41k
17.68k (x0.7)

Multithread

9420

E5-2651 v2
Test#1 (Integers)
11.25k
168.18k (x14.95)
Test#2 (FP)
13.69k
159.6k (x11.66)
Test#3 (Generic, ZIP)
2.09k
77.04k (x36.94)
Test#1 (Memory)
1.87k
10.19k (x5.45)
TOTAL
28.89k
415.01k (x14.37)

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
9420
E5-2651 v2
Test#1 (Integers)
7.55k
6.69k (x0.89)
Test#2 (FP)
13.9k
6.35k (x0.46)
Test#3 (Generic, ZIP)
3.11k
2.54k (x0.82)
Test#1 (Memory)
2.18k
2.17k (x1)
TOTAL
26.74k
17.75k (x0.66)

Multithread

9420

E5-2651 v2
Test#1 (Integers)
9.09k
165.17k (x18.17)
Test#2 (FP)
12.25k
176.85k (x14.44)
Test#3 (Generic, ZIP)
3k
73.91k (x24.61)
Test#1 (Memory)
1.81k
10.25k (x5.68)
TOTAL
26.15k
426.18k (x16.3)

Performance/W
9420
E5-2651 v2
Test#1 (Integers)
606 points/W