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Atom Z520 vs E Series E-350


Description
The Z520 is based on Bonnell architecture while the E-350 is based on Bobcat.

Using the multithread performance as a reference, the Z520 gets a score of 3.6 k points while the E-350 gets 10 k points.

Summarizing, the E-350 is 2.8 times faster than the Z520 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106c2
500f10
Core
Silverthorne
Zacate
Architecture
Base frecuency
1.333 GHz
1.6 GHz
Socket
BGA 441
Socket FT1
Cores/Threads
1 /2
2/2
TDP
2 W
18 W
Cache L1 (d+i)
32+24 kB
kB
Cache L2
512 kB
2x512 kB
Cache L3
kB
0 kB
Date
April 2008
January 2011
Mean monothread perf.
2.72k points
6.26k points
Mean multithread perf.
3.6k points
10.05k 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
Z520
E-350
Test#1 (Integers)
0.3k
0.83k (x2.81)
Test#2 (FP)
0.63k
2.38k (x3.8)
Test#3 (Generic, ZIP)
0.64k
1.41k (x2.2)
Test#1 (Memory)
0.3k
0.75k (x2.49)
TOTAL
1.86k
5.37k (x2.88)

Multithread

Z520

E-350
Test#1 (Integers)
0.46k
1.45k (x3.12)
Test#2 (FP)
0.99k
3.97k (x4)
Test#3 (Generic, ZIP)
0.85k
2.18k (x2.56)
Test#1 (Memory)
0.43k
0.82k (x1.91)
TOTAL
2.74k
8.42k (x3.07)

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
Z520
E-350
Test#1 (Integers)
0.9k
1.78k (x1.99)
Test#2 (FP)
0.71k
2.33k (x3.29)
Test#3 (Generic, ZIP)
0.75k
1.41k (x1.89)
Test#1 (Memory)
0.37k
0.74k (x2.01)
TOTAL
2.72k
6.26k (x2.3)

Multithread

Z520

E-350
Test#1 (Integers)
1.06k
2.84k (x2.68)
Test#2 (FP)
1.08k
3.89k (x3.61)
Test#3 (Generic, ZIP)
1.06k
2.42k (x2.29)
Test#1 (Memory)
0.41k
0.9k (x2.22)
TOTAL
3.6k
10.05k (x2.79)

Performance/W
Z520
E-350
Test#1 (Integers)
528 points/W
158 points/W
Test#2 (FP)
540 points/W
216 points/W
Test#3 (Generic, ZIP)
528 points/W
134 points/W
Test#1 (Memory)
203 points/W
50 points/W
TOTAL
1800 points/W
558 points/W

Performance/GHz
Z520
E-350
Test#1 (Integers)
673 points/GHz
1115 points/GHz
Test#2 (FP)
530 points/GHz
1454 points/GHz
Test#3 (Generic, ZIP)
560 points/GHz
879 points/GHz
Test#1 (Memory)
278 points/GHz
465 points/GHz
TOTAL
2040 points/GHz
3914 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