Core i7-720QM vs i7-920
Description
The i7-720QM is based on Nehalem architecture while the i7-920 is based on Nehalem Westmere.
Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the i7-920 gets 47.2 k points.
Summarizing, the i7-920 is 1.2 times faster than the i7-720QM. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the i7-920 gets 47.2 k points.
Summarizing, the i7-920 is 1.2 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
Bloomfield
Base frecuency
1.6 GHz
2.667 GHz
Boost frecuency
2.8 GHz
2.993 GHz
Socket
988-pin micro-FCPGA8
LGA 1366
Cores/Threads
4/8
4/8
TDP
45 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
September 2009
November 2008
Mean monothread perf.
13.13k points
16.33k points
Mean multithread perf.
38.78k points
47.2k 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
i7-920
Test#1 (Integers)
1.49k
1.97k (x1.32)
Test#2 (FP)
3.4k
4.43k (x1.3)
Test#3 (Generic, ZIP)
1.95k
2.75k (x1.41)
Test#1 (Memory)
2.08k
2.53k (x1.22)
TOTAL
8.92k
11.68k (x1.31)
Multithread
i7-720QM
i7-920
Test#1 (Integers)
4.23k
7.71k (x1.82)
Test#2 (FP)
11.4k
18.81k (x1.65)
Test#3 (Generic, ZIP)
7.17k
13.76k (x1.92)
Test#1 (Memory)
4.51k
5.07k (x1.12)
TOTAL
27.32k
45.34k (x1.66)
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
i7-920
Test#1 (Integers)
5.49k
6.12k (x1.11)
Test#2 (FP)
3.55k
4.76k (x1.34)
Test#3 (Generic, ZIP)
2.01k
2.78k (x1.39)
Test#1 (Memory)
2.09k
2.67k (x1.28)
TOTAL
13.13k
16.33k (x1.24)
Multithread
i7-720QM
i7-920
Test#1 (Integers)
15.06k
19.26k (x1.28)
Test#2 (FP)
12.15k
14.96k (x1.23)
Test#3 (Generic, ZIP)
7.18k
8.05k (x1.12)
Test#1 (Memory)
4.39k
4.92k (x1.12)
TOTAL
38.78k
47.2k (x1.22)
Performance/W
i7-720QM
i7-920
Test#1 (Integers)
335 points/W
148 points/W
Test#2 (FP)
270 points/W
115 points/W
Test#3 (Generic, ZIP)
160 points/W
62 points/W
Test#1 (Memory)
98 points/W
38 points/W
TOTAL
862 points/W
363 points/W
Performance/GHz
i7-720QM
i7-920
Test#1 (Integers)
1962 points/GHz
2044 points/GHz
Test#2 (FP)
1267 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
930 points/GHz
Test#1 (Memory)
745 points/GHz
891 points/GHz
TOTAL
4691 points/GHz
5457 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