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Xeon E5-4640 vs A9 9420


Description
The E5-4640 is based on Sandy Bridge architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the E5-4640 gets a score of 610.2 k points while the 9420 gets 26.2 k points.

Summarizing, the E5-4640 is 23.3 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-EP
Stoney Ridge
Architecture
Base frecuency
2.4 GHz
3 GHz
Boost frecuency
2.8 GHz
3.6 GHz
Socket
LGA 2011
Micro-BGA
Cores/Threads
8 /16
2/2
TDP
95 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
96+2x32 kB
Cache L2
8x256 kB
1024 kB
Cache L3
20480 kB
0 kB
Date
May 2012
April 2017
Mean monothread perf.
13.88k points
33.09k points
Mean multithread perf.
610.16k 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
E5-4640
9420
Test#1 (Integers)
1.66k
2.56k (x1.54)
Test#2 (FP)
5.26k
9.97k (x1.89)
Test#3 (Generic, ZIP)
2.13k
2.96k (x1.39)
Test#1 (Memory)
2.53k
2.12k (x0.84)
TOTAL
11.58k
17.61k (x1.52)

Multithread

E5-4640

9420
Test#1 (Integers)
77.64k
3.88k (x0.05)
Test#2 (FP)
212.2k
9.26k (x0.04)
Test#3 (Generic, ZIP)
113.11k
3.9k (x0.03)
Test#1 (Memory)
7.54k
1.74k (x0.23)
TOTAL
410.48k
18.79k (x0.05)

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
E5-4640
9420
Test#1 (Integers)
6.19k
8.41k (x1.36)
Test#2 (FP)
5.89k
11.48k (x1.95)
Test#3 (Generic, ZIP)
2.11k
3.29k (x1.56)
Test#1 (Memory)
2.51k
2.24k (x0.89)
TOTAL
16.7k
25.41k (x1.52)

Multithread

E5-4640

9420
Test#1 (Integers)
244.88k
11.25k (x0.05)
Test#2 (FP)
215.35k
13.69k (x0.06)
Test#3 (Generic, ZIP)
114.64k
2.09k (x0.02)
Test#1 (Memory)
6.76k
1.87k (x0.28)
TOTAL
581.63k
28.89k (x0.05)

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
E5-4640
9420
Test#1 (Integers)
5.01k
7.55k (x1.51)
Test#2 (FP)
4.5k
13.9k (x3.09)
Test#3 (Generic, ZIP)
2.18k
3.11k (x1.43)
Test#1 (Memory)
2.19k
2.18k (x0.99)
TOTAL
13.88k
26.74k (x1.93)

Multithread

E5-4640

9420
Test#1 (Integers)
251.29k
9.09k (x0.04)
Test#2 (FP)
236.61k
12.25k (x0.05)
Test#3 (Generic, ZIP)
114.89k
3k (x0.03)
Test#1 (Memory)
7.36k
1.81k (x0.25)
TOTAL
610.16k
26.15k (x0.04)

Performance/W
E5-4640
9420
Test#1 (Integers)
2645 points/W
606 points/W
Test#2 (FP)
2491 points/W
817 points/W
Test#3 (Generic, ZIP)
1209 points/W
200 points/W
Test#1 (Memory)
78 points/W
120 points/W
TOTAL
6423 points/W
1743 points/W

Performance/GHz
E5-4640
9420
Test#1 (Integers)
1790 points/GHz
2096 points/GHz
Test#2 (FP)
1609 points/GHz
3862 points/GHz
Test#3 (Generic, ZIP)
777 points/GHz
864 points/GHz
Test#1 (Memory)
782 points/GHz
604 points/GHz
TOTAL
4957 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