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Core i7-720QM vs Pentium 4405U


Description
The i7-720QM is based on Nehalem architecture while the 4405U is based on Skylake.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the 4405U gets 51.1 k points.

Summarizing, the 4405U is 1.3 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
406e3
Core
Clarksfield
Skylake-U
Architecture
Base frecuency
1.6 GHz
2.1 GHz
Boost frecuency
2.8 GHz
2.1 GHz
Socket
988-pin micro-FCPGA8
BGA 1356
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
2048 kB
Date
September 2009
Mean monothread perf.
13.13k points
23.33k points
Mean multithread perf.
38.78k points
51.1k 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
i7-720QM
4405U
Test#1 (Integers)
5.49k
7.45k (x1.36)
Test#2 (FP)
3.55k
10.51k (x2.96)
Test#3 (Generic, ZIP)
2.01k
2.78k (x1.39)
Test#1 (Memory)
2.09k
2.59k (x1.24)
TOTAL
13.13k
23.33k (x1.78)

Multithread

i7-720QM

4405U
Test#1 (Integers)
15.06k
16.1k (x1.07)
Test#2 (FP)
12.15k
25.44k (x2.09)
Test#3 (Generic, ZIP)
7.18k
6.99k (x0.97)
Test#1 (Memory)
4.39k
2.58k (x0.59)
TOTAL
38.78k
51.1k (x1.32)

Performance/W
i7-720QM
4405U
Test#1 (Integers)
335 points/W
1073 points/W
Test#2 (FP)
270 points/W
1696 points/W
Test#3 (Generic, ZIP)
160 points/W
466 points/W
Test#1 (Memory)
98 points/W
172 points/W
TOTAL
862 points/W
3407 points/W

Performance/GHz
i7-720QM
4405U
Test#1 (Integers)
1962 points/GHz
3547 points/GHz
Test#2 (FP)
1267 points/GHz
5007 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1324 points/GHz
Test#1 (Memory)
745 points/GHz
1232 points/GHz
TOTAL
4691 points/GHz
11109 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