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Core i7-720QM vs i7-950


Description
The i7-720QM is based on Nehalem architecture while the i7-950 is based on Westmere.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the i7-950 gets 76.3 k points.

Summarizing, the i7-950 is 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
Architecture
Base frecuency
1.6 GHz
3.066 GHz
Boost frecuency
2.8 GHz
3.333 GHz
Socket
988-pin micro-FCPGA8
LGA 1366
Cores/Threads
4/8
4/4
TDP
45 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
September 2009
June 2009
Mean monothread perf.
13.13k points
19.46k points
Mean multithread perf.
38.78k points
76.29k 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
i7-950
Test#1 (Integers)
5.49k
8.01k (x1.46)
Test#2 (FP)
3.55k
5.38k (x1.52)
Test#3 (Generic, ZIP)
2.01k
3.11k (x1.55)
Test#1 (Memory)
2.09k
2.96k (x1.42)
TOTAL
13.13k
19.46k (x1.48)

Multithread

i7-720QM

i7-950
Test#1 (Integers)
15.06k
31.53k (x2.09)
Test#2 (FP)
12.15k
24.16k (x1.99)
Test#3 (Generic, ZIP)
7.18k
15.84k (x2.21)
Test#1 (Memory)
4.39k
4.75k (x1.08)
TOTAL
38.78k
76.29k (x1.97)

Performance/W
i7-720QM
i7-950
Test#1 (Integers)
335 points/W
243 points/W
Test#2 (FP)
270 points/W
186 points/W
Test#3 (Generic, ZIP)
160 points/W
122 points/W
Test#1 (Memory)
98 points/W
37 points/W
TOTAL
862 points/W
587 points/W

Performance/GHz
i7-720QM
i7-950
Test#1 (Integers)
1962 points/GHz
2403 points/GHz
Test#2 (FP)
1267 points/GHz
1614 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
934 points/GHz
Test#1 (Memory)
745 points/GHz
888 points/GHz
TOTAL
4691 points/GHz
5839 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