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Core i7-720QM vs Xeon E5506


Description
Both models i7-720QM and E5506 are based on Nehalem architecture.



Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the E5506 gets 90.4 k points.

Summarizing, the E5506 is 2.3 times faster than the i7-720QM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
106a5
Core
Clarksfield
Gainestown
Architecture
Base frecuency
1.6 GHz
2.133 GHz
Boost frecuency
2.8 GHz
2.133 GHz
Socket
988-pin micro-FCPGA8
LGA 1366
Cores/Threads
4/8
4 /4
TDP
45 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
4096 kB
Date
September 2009
March 2009
Mean monothread perf.
13.13k points
9.97k points
Mean multithread perf.
38.78k points
90.45k 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
i7-720QM
E5506
Test#1 (Integers)
1.49k
1.21k (x0.81)
Test#2 (FP)
3.4k
2.75k (x0.81)
Test#3 (Generic, ZIP)
1.95k
1.94k (x1)
Test#1 (Memory)
2.08k
0.78k (x0.38)
TOTAL
8.92k
6.68k (x0.75)

Multithread

i7-720QM

E5506
Test#1 (Integers)
4.23k
12.25k (x2.9)
Test#2 (FP)
11.4k
25.55k (x2.24)
Test#3 (Generic, ZIP)
7.17k
17.1k (x2.38)
Test#1 (Memory)
4.51k
5.01k (x1.11)
TOTAL
27.32k
59.9k (x2.19)

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
i7-720QM
E5506
Test#1 (Integers)
5.49k
4.48k (x0.81)
Test#2 (FP)
3.55k
2.99k (x0.84)
Test#3 (Generic, ZIP)
2.01k
1.81k (x0.9)
Test#1 (Memory)
2.09k
0.69k (x0.33)
TOTAL
13.13k
9.97k (x0.76)

Multithread

i7-720QM

E5506
Test#1 (Integers)
15.06k
41k (x2.72)
Test#2 (FP)
12.15k
28.17k (x2.32)
Test#3 (Generic, ZIP)
7.18k
17.4k (x2.42)
Test#1 (Memory)
4.39k
3.88k (x0.88)
TOTAL
38.78k
90.45k (x2.33)

Performance/W
i7-720QM
E5506
Test#1 (Integers)
335 points/W
513 points/W
Test#2 (FP)
270 points/W
352 points/W
Test#3 (Generic, ZIP)
160 points/W
217 points/W
Test#1 (Memory)
98 points/W
48 points/W
TOTAL
862 points/W
1131 points/W

Performance/GHz
i7-720QM
E5506
Test#1 (Integers)
1962 points/GHz
2099 points/GHz
Test#2 (FP)
1267 points/GHz
1404 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
847 points/GHz
Test#1 (Memory)
745 points/GHz
325 points/GHz
TOTAL
4691 points/GHz
4675 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