Core 2 Duo E4400 vs Core i7-720QM
Description
The E4400 is based on Core architecture while the i7-720QM is based on Nehalem.
Using the multithread performance as a reference, the E4400 gets a score of 14.2 k points while the i7-720QM gets 38.8 k points.
Summarizing, the i7-720QM is 2.7 times faster than the E4400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E4400 gets a score of 14.2 k points while the i7-720QM gets 38.8 k points.
Summarizing, the i7-720QM is 2.7 times faster than the E4400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
6fd
106e5
Core
Allendale
Clarksfield
Base frecuency
2 GHz
1.6 GHz
Boost frecuency
2 GHz
2.8 GHz
Socket
LGA 775
988-pin micro-FCPGA8
Cores/Threads
2/2
4/8
TDP
65 W
45 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2048 kB
4x256 kB
Cache L3
0 kB
6144 kB
Date
July 2007
September 2009
Mean monothread perf.
7.67k points
13.13k points
Mean multithread perf.
14.17k points
38.78k 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
E4400
i7-720QM
Test#1 (Integers)
2.01k
1.49k (x0.74)
Test#2 (FP)
2.01k
3.4k (x1.69)
Test#3 (Generic, ZIP)
2.02k
1.95k (x0.97)
Test#1 (Memory)
1.19k
2.08k (x1.74)
TOTAL
7.24k
8.92k (x1.23)
Multithread
E4400
i7-720QM
Test#1 (Integers)
4k
4.23k (x1.06)
Test#2 (FP)
4.02k
11.4k (x2.83)
Test#3 (Generic, ZIP)
4.04k
7.17k (x1.77)
Test#1 (Memory)
1.2k
4.51k (x3.77)
TOTAL
13.26k
27.32k (x2.06)
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
E4400
i7-720QM
Test#1 (Integers)
2.3k
5.49k (x2.39)
Test#2 (FP)
2.09k
3.55k (x1.7)
Test#3 (Generic, ZIP)
2.1k
2.01k (x0.96)
Test#1 (Memory)
1.18k
2.09k (x1.77)
TOTAL
7.67k
13.13k (x1.71)
Multithread
E4400
i7-720QM
Test#1 (Integers)
4.61k
15.06k (x3.27)
Test#2 (FP)
4.17k
12.15k (x2.92)
Test#3 (Generic, ZIP)
4.2k
7.18k (x1.71)
Test#1 (Memory)
1.2k
4.39k (x3.67)
TOTAL
14.17k
38.78k (x2.74)
Performance/W
E4400
i7-720QM
Test#1 (Integers)
71 points/W
335 points/W
Test#2 (FP)
64 points/W
270 points/W
Test#3 (Generic, ZIP)
65 points/W
160 points/W
Test#1 (Memory)
18 points/W
98 points/W
TOTAL
218 points/W
862 points/W
Performance/GHz
E4400
i7-720QM
Test#1 (Integers)
1151 points/GHz
1962 points/GHz
Test#2 (FP)
1044 points/GHz
1267 points/GHz
Test#3 (Generic, ZIP)
1048 points/GHz
717 points/GHz
Test#1 (Memory)
591 points/GHz
745 points/GHz
TOTAL
3834 points/GHz
4691 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4