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Core i7-720QM vs i5-3320M


Description
The i7-720QM is based on Nehalem architecture while the i5-3320M is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the i5-3320M gets 54.6 k points.

Summarizing, the i5-3320M is 1.4 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
306a9
Core
Clarksfield
Ivy Bridge
Architecture
Base frecuency
1.6 GHz
2.6 GHz
Boost frecuency
2.8 GHz
3.3 GHz
Socket
988-pin micro-FCPGA8
BGA1023
Cores/Threads
4/8
2/4
TDP
45 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
3072 kB
Date
September 2009
June 2012
Mean monothread perf.
13.13k points
29.22k points
Mean multithread perf.
38.78k points
58.81k 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
i5-3320M
Test#1 (Integers)
1.49k
3.21k (x2.15)
Test#2 (FP)
3.4k
9.05k (x2.66)
Test#3 (Generic, ZIP)
1.95k
3.94k (x2.02)
Test#1 (Memory)
2.08k
3.93k (x1.89)
TOTAL
8.92k
20.13k (x2.26)

Multithread

i7-720QM

i5-3320M
Test#1 (Integers)
4.23k
6.08k (x1.44)
Test#2 (FP)
11.4k
19.02k (x1.67)
Test#3 (Generic, ZIP)
7.17k
8.85k (x1.23)
Test#1 (Memory)
4.51k
3.98k (x0.88)
TOTAL
27.32k
37.93k (x1.39)

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
i5-3320M
Test#1 (Integers)
5.49k
10.89k (x1.98)
Test#2 (FP)
3.55k
9.77k (x2.75)
Test#3 (Generic, ZIP)
2.01k
3.98k (x1.98)
Test#1 (Memory)
2.09k
3.77k (x1.81)
TOTAL
13.13k
28.4k (x2.16)

Multithread

i7-720QM

i5-3320M
Test#1 (Integers)
15.06k
20.23k (x1.34)
Test#2 (FP)
12.15k
20.83k (x1.72)
Test#3 (Generic, ZIP)
7.18k
9.49k (x1.32)
Test#1 (Memory)
4.39k
4.04k (x0.92)
TOTAL
38.78k
54.6k (x1.41)

Performance/W
i7-720QM
i5-3320M
Test#1 (Integers)
335 points/W
578 points/W
Test#2 (FP)
270 points/W
595 points/W
Test#3 (Generic, ZIP)
160 points/W
271 points/W
Test#1 (Memory)
98 points/W
115 points/W
TOTAL
862 points/W
1560 points/W

Performance/GHz
i7-720QM
i5-3320M
Test#1 (Integers)
1962 points/GHz
3300 points/GHz
Test#2 (FP)
1267 points/GHz
2960 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1205 points/GHz
Test#1 (Memory)
745 points/GHz
1141 points/GHz
TOTAL
4691 points/GHz
8607 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